Preamplifier Preamplifier 720 User manual User manual
Contents
1. Value 1 40 STBHERT UDLLIPNE EL Default 30 PROG Display for function Start Volume Value domain activated While switching to the value domain of the Program Function Start Volume the pre amplifier 720 changes the current volume to the value defined in Start Volume Now you are able to judge whether the Start Volume level is appropriate As soon as the value domain is left the preamplifier 720 switches back to the former volume level Dim Volume This Program Function defines the Dim Volume After selecting the Program Function Dim Volume the display shows the value domain red LEDs active and you may define the desired volume level Values 0 40 DiW U0L UME 35 Default 20 PROGI Display for function Dim Volume Value domain activated While switching to the value domain of the Program Function Dim Volume the pre amplifier 720 changes the current volume to the value defined in Dim Volume Now you are able to judge whether the Dim Volume level is appropriate As soon as the value domain is left the preamplifier 720 switches back to the former volume level Security advice Set the Dim Volume to a moderate level If you ex change a component of your system please check whether the setting still is appro priate Page 720 25 soulution 5 2 6 5 2 7 Seite nature of sound Dm USER En Max Volume You may limit the maximal volume level in order to avoid dangerous volume levels t2. 9 1 9 2 9 3 Preamplifier User Manual n UNUS ibn Care and maintenance Burn in The preamplifier 720 will play on top level immediately after the first placing into operation However during the first 20 50 hours of operation you will notice a fur ther improvement of its sonic qualities Longlife precautions We use only highest quality components for the preamplifier 720 Components prone to aging are kept under constant voltages in stand by OFF condition in order to further increase their lifetime In stand by OFF condition the preamplifier 720 dissipates ca 6 Watts Security advice Unplug your preamplifier 720 if you leave for longer periods Cleaning Please use a soft towel for the cleaning of your preamplifier 720 We recommend the use of a nonabrasive micro fibre towel Please do not employ any solvents Security advice Liquidity is not allowed to enter the preamplifier 720 The electronic may be damaged seriously Page 720 39 soulution 10 11 Seite 40 nature of sound Dm USER En Service If your soulution preamplifier needs service please contact your soulution dealer For further information see www soulution audio com Warranty All soulution products are guaranteed against defects in material and workmanship for five years from date of purchase The guarantee is void if the preamplifier 720 has been subject to misuse or negli gence or has been modified repaired or opened
3. Symmetrical inputs IN 1 IN 2 B Your preamplifier 720 has two symmetrical inputs IN 1 IN 2 Connect your high quality source equipment with symmetrical cables to the preamplifier 720 Security advice please follow the security advices on page 6 Phono stage IN 3 C The asymmetrical input IN 3 is reserved exclusively for phono MC Connect your analogue turntable with asymmetrical connectors to the preamplifier 720 Please connect only moving coil MC systems External phono modules ensure optimal impedance matching of your cartridge and the phono amplifier The enclosed modules adjust the impedance to 1kQ and 10090 Modules with other impedances are available through your soulution dealer The phono stage has a basic amplification of 54 dB or 60 dB at 1 kHz This can be defined with the Program Function Phono Gain chapter 5 2 11 page 29 The phono amplifier works with an internal bandwidth of 1 MHz 3 dB This guar antees the most accurate reproduction of the RIAA equalisation curve If required the subsonic filter RIAA IEC can be activated In case you do not use your phono stage we recommend to terminate the input IN 3 with enclosed phono termination plugs This prevents from accidentally connecting a line source apparatus Security advice Please follow the security advices on page 6 Never connect a line source to the input IN 3 The phono stage is not protected against over voltages for sonic reasons and wo
4. 720 Page 27 soulution 5 2 9 5 2 10 Seite nature of sound Bandwidth IN 1 IN 6 Digital signal sources can emit remarkable levels of high frequency noise through the connecting cables This will lower the sonic performance of your overall system You may limit the bandwidth of each input IN 1 IN 6 individually depending on the quality of the source signal After selecting the Program Function Bandwidth IN 1 the display shows the value domain red LEDs active and you can limit the bandwidth for input In 1 Values high no limitation mid 200 kHz 3dB low 20 kHz 3dB Default high Display for function Bandwidth IN 4 Value domain activated After you have left the Programming Mode the display shows the bandwidth limita tion as follows B sHucD IH 4 GH Display for Bandwidth limitation of input IN 4 Gain IN 1 IN 6 Different signal sources have different output levels You can adjust the level for each input by 0 3 6 9 dB individually After selecting the Program Function Gain IN 1 the display shows the value domain red LEDs active and you can adjust the level for input In 1 For the input IN 3 phono exists additionally the Program Function Phono Gain which defines the basic amplification in to levels 54 dB 60 dB Values 0 3 6 9 Default 0 PROG Display for function Gain IN 1 Value domain activated Gain adjustments are immediately performed so you can chec
5. control Mute 9 PRE mode The Mute button controls always the mute function of the pre amplifier integrated amplifier The mute function disconnects the Main Out and the Record Out connectors CD mode no function 34 6 2 6 6 2 7 6 2 8 6 2 9 Preamplifier User Manual n ibo Open Close 11 PRE Mode no function CD mode The Open Close button controls the drawer of the player Prog button 8 PRE mode The Prog button switches the preamplifier integrated amplifier between Operating Mode and Programming Mode CD mode The Prog button switches the CD SACD Player between Operat ing Mode and Programming Mode PRE button 12 Pressing the PRE button switches the remote control to PRE mode for the control of the preamplifiers or integrated amplifiers While pressing the buttons of the remote control the red LED 14 will light up CD button 13 Pressing the CD button switches the remote control to CD mode for the control of the CD SACD Players While pressing the buttons of the remote control the blue Leds under the Play Pause button 4 will light up Page 720 35 soulution 6 2 10 6 2 11 Seite nature of sound gu C 36 Power 10 PRE mode CD mode Remote Ctrl ID PRE mode CD mode The Power button defines the operating condition ON or OFF of the preamplifier intzegrated amplifier The Power button defines the operating condition ON or OFF of the CD
6. control is located in the lower left corner behind the display glass For best reception do not place any ob jects in front of the display Never place your preamplifier 720 on the front panel The display glass could get scratched or even burst Page 720 21 soulution 5 1 Seite 22 nature of sound t Programming of the preamplifier 720 Overview The available Program Functions allow adjusting the preamplifier 720 to your indi vidual High Fidelity setup The preamplifier 720 is already programmed with default settings Further pro gramming is not mandatory We recommend to adjust the Program Functions Start Volume to your setup and to limit the volume with the Program Function Max Volume If you connect a recording device we recommend implicitly activating the Program Function Record Loop Element Function Prog button The Prog button changes the preamplifier 720 from operating mode to Programming Mode and vice versa The preamplifier 720 remains in the respective mode until the Prog button is pressed again Input knob Spinning of the Input knob allows selecting the desired Pro gram Function Pressing the Input knob approves the selected Program Function Now the value domain of the selected Pro gram Function is active red LEDs in display Spinning of the Input knob allows adjusting the desired value Pressing the In put knob approves the respective value 5 2 5 2 1 5 2 2 Preampl
7. original level As long as the Volume Dim function is active the volume can not be altered by the Volume knob The volume can only be changed after the Volume Dim function has been deactivated Display with active Volume Dim function Input O The Input knob controls the functions Input Select Record Select and is used for the Programming Input Select By turning the Input knob you define which input of the preamplifier shall be con nected The display shows the input you want to select for example SACD IN 4 The current input remains active until the new input has been selected and the In put knob was not turned for ca 3 sec All other inputs remain completely disconnected from the preamplifier 720 Signal and ground are dis connected by top class relays Hum noise originating from even tual equalising currents between connected audio components is thus effectively eliminated Additionally cross talk from inactive inputs to the active input is sup pressed Page 720 19 soulution 4 4 5 2 4 4 5 3 Seite nature of sound Display while selecting a new input Display after the new input is switched on DC protection deacti vated For security reasons the DC protection function is activated during the switch over to the new input If there is no DC offset the coupling capacitor is bypassed after ca 15 seconds Record Select By pushing the Input knob the preamplifier 720 changes into Record Sele
8. 720 changes the current volume of left or right channel according to the setting 26 5 2 8 Preamplifier User Manual EXT Ium e of the Balance setting Now you are able to judge whether the Balance is appropri ate The Balance setting reduces the maximal possible volume control range of 80dB by the Balance setting Balance lt 7 dB gt volume control range 73 dB After switching back to the Operating Mode the display shows balance settings as follows 3 iH xg tri an LHO Pe CH H Display for Balance setting to the Display for Balance setting tot the left right Name IN 1 IN 6 You may rename the inputs IN 1 IN 6 by selecting on out of the predefined source name list After selecting the Program Function Name IN 2 the display shows the value domain red LEDs active and you can define the desired name for input In 2 EE Values AUX AUX1 AUX2 CD CD1 CD2 PELA DAC DAT DCC DVD DVD1 DVD2 SACD DVDA HD HiMD LD MD MP3 PC PROGIE PHON SACD TAPE TUNE TV DVB Display for function Name IN 4 DAB OFF Value domain activated Default OFF If you want to switch off the name please select OFF The respective input will then be shown as IN 1 IN 6 Example After you selected SACD for the input IN 4 the display shows the input as follows Display for Name IN 4 SACD The new input names IN 1 IN 6 will be activated after you have left the Program ming Mode
9. Preamplifier 720 User manual soulution nature of sound Preamplifier User Manual n UNUS ibo Dear client We are proud that you decided yourself for a soulution preamplifier You have ac quired a preamplifier with outstanding sonic performance which you will enjoy for many years We understand your eagerness to get started but even though please study this manual step by step before you integrate the preamplifier 720 in your High Fidelity system This manual contains also useful tips for the optimisation of your overall HiFi system If there are any questions regarding the start up or operation of your preamplifier 720 please do not hesitate to contact your dealer Have fun Your soulution team Page 720 1 soulution Seite nature of sound gu C 2 CE Declaration of Conformity Spemot AG declares that this product is in conformance with the following direc tives and standards Low Voltage Directive 2006 95 EG EN IEC 60065 2002 Electromagnetic Compatibility 2004 108 EG EN 55013 2001 EN 55020 2002 EN 61000 3 2 2006 EN61000 3 3 1995 FCC Notice Note This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are de signed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and i
10. SACD Player Change the transmitter Remote Ctrl ID of the remote control as follows ID1 Input button 6 Input button 5 and Power 10 ID 2 Input button 6 Input button 5 and Mute 9 Press the respective buttons for approximately 5 seconds The remote control confirms the new ID via red LED on its front The Remote Control ID of the preamplifier integrated amplifier has to be changed as well by selecting the Program Function Remote Control ID otherwise the preamplifier integrated ampli fier will not react to the remote control no more The Remote Ctrl ID can not be changed Preamplifier User Manual n UNUS ibo Protection functions of the preamplifier 720 Comprehensive protection functions ensure a secure operation and long durability The preamplifier 720 disposes over the following functions Overcurrent For currents 1 Ampere at the Main Out the preamplifier 720 shuts down auto matically DC PROTECT Your preamplifier 720 is protected against DC offset at the inputs IN 1 IN 6 The input signal is permanently monitored for DC components As soon as a DC offset is detected a coupling capacitor is switched into the signal path This capacitor is by passed if the DC offset has ceased for at least 15 seconds The display shows the symbol for the capacitor While switching between inputs the capacitor is activated automatically for security reasons This is not a malfunction of your source devic
11. Security advice Never remove the security cover while your preampli fier is in operation Always switch off your preamplifier 720 before you connect an external device RS232 Interface I The preamplifier 720 can be remote controlled through the RS232 interface All functions can be controlled and relevant information is provided to the controll unit Page 720 15 soulution 4 3 10 4 4 4 4 1 Seite 16 nature of sound gu C Type label J Please note the serial number of your preamplifier 720 on page 7 of this user man ual This allows you to have the product specific data at hand without removing your preamplifier 720 from the HiFi rack Front panel of the preamplifier 720 argue volume soulution P K L M 0 N Front panel of the preamplifier 720 Power K With the Power button you define the operating condition ON or OFF red LEDs In operating condition OFF the audio circuits are completely disconnected from the output terminal Main Out The Main Out terminals are only activated if the pre amplifier 720 is ready for operation and if no errors are present HUTE i P UH Display in operating condition OFF Display in operating condition Display in operating condition ON PROTECT ON We suggest bringing your preamplifier 720 in operating condition OFF while you are not listening to music Your preamplifier 720 may be switched on with the IR remote control Power consumption
12. as a basic amplification of 54 dB or 60 dB at 1 kHz This can be defined with the function Phono Gain The phono amplifier works with an in ternal bandwidth of 1 MHz 3 dB This guarantees the most accurate reproduction of the RIAA equalisation curve 3 4 3 5 Preamplifier User Manual n UNUS ibo External phono modules ensure optimal impedance matching of your cartridge and the phono amplifier The enclosed modules adjust the impedance to 1kQ and 10090 Modules with other impedances are available through your soulution dealer Output stage The output stage is optimised for velocity precision and impulse current rating Thanks to its low output impedance of 2Q and Class A operation 40mA idle cur rent the output stage is stable on every load also long cables are driven without problems The theoretical maximal current rating of 3 amperes is limited to 1 ampere This is realised with a protection circuit outside the signal path Due to the bandwidth of 1 MHz 3 dB internally the output stage works up until frequencies of 40 MHz all details of the music reproduced naturally The spatial reproduction gets really three dimensional and holographic optimal recording pre requisite The power of the output stage ensures that all these details are truly transmitted to your amplifier Cable losses are minimised Power supply The preamplifier 720 has two separate power supply units one for the supply of the audio se
13. asons we recommend to activate the subsonic filter Page 720 29 soulution nature of sound 9 5 2 13 Surround IN The Program Function Surround IN activates the Surround Mode for the selected input SURRDLIND IM Values IN 1 IN 2 IN 4 IN 5 IN 6 OFF IH 4 PROG Display for function Surround IN Default OFF Value domain activated In Surround Mode the settings for Volume and Balance do not have any influence The input signal present at the Surround IN is transferred to the outputs with the level defined in Program Function Surround Max Vol The Program Function Surround IN is not available for the input IN 3 phono If you have activated the Surround IN for input IN 4 the display will show as fol lows Display for activated Surround IN input IN 4 and Surround Max Vol 45 5 2 14 Surround Max Vol The Program Function Surround Max Vol defines the output level for the Surround IN The setting of this function has no impact if the Surround IN is OFF SURROUND MOX UOL Values 40 80 45 FR OG It Display for function Surround Max Default 40 Vol Value domain activated You can select the optimal volume level at the output of the preamplifier 720 de pending on your surround system The level can be adjusted in 1 dB steps Seite 30 5 2 15 5 2 16 Preamplifier 720 User Manual n UNUS ibo Level 70 z 0 5 dB total gain input to output sym 71 0 5 dB total gain input to outpu
14. by a non authorised person without written authorisation of Spemot AG For the return transport to our premises please use exclusively the original packag ing Transport damages are not subject to this guarantee repairs will be charged We recommend effecting transport insurance If you not posses the original packaging no more please contact your soulution dealer Basic repairs may be completed by your soulution dealer Please clarify whether he is able to do the work before you send the preamplifier 720 back to us 12 Specifications Specification General Nominal voltage Nominal rating Power consumption Power consumption Line inputs Amplification Frequency response Slew rate THD N Signal to Noise ratio Crosstalk Input impedance Phono Input Amplification Amplifier bandwidth Slew rate THD N Input Impedance Outputs Voltage Current Impedance LINK Out Dimensions Dimensions Weight Model 220 240V Model 100 120V OFF ON IN 1 IN 2 IN 4 IN 6 symmetrical IN 1 IN 2 asymmetrical IN 4 IN 6 symmetrical IN 1 IN 2 asymmetrical IN 4 IN 6 IN 3 internal no adaptation Main Out symmetrical Main Out asymmetrical Main Out symmetrical Main Out asymmetrical Record Out Preamplifier User Manual n ibo Data 220 240 V 50 60 Hz 100 120 V 50 60 Hz 250 W lt 0 5 W 60 W 9 5 418 5 dB 3 5 412 5 dB DC 1 MHz 400 ns lt 0 0006 140 dB 105
15. ct Mode Now you may select the input to be looped through to the Record Out connectors The display shows the current Record In for example REC IN 2 Spin the Input knob until the desired Record In appears in the display The new Record IN is only acti vated when you push again the Input knob Thus you confirm the new selection and the Record Select Mode is left In the case you do not want to loop through any sig nal to the Record Out connectors please choose REC OFF The activated Record Out disappears from the display after the Record Select Mode is left The display shows the current input connected to the Main Out connectors If a Record out is activated the display shows sign R 20 Display for operating condition Re Display after exiting the Record cord Select Mode Select Mode with active Record In The settings of the Record Select do not affect the signal present at the Main Out connectors Programming The Input knob is used in the Programming Mode for selecting Program Functions and setting of values for the respective Program Functions 4 4 6 Preamplifier User Manual n UNUS ibo Display IR receiver P The display shows all relevant information for operating your preamplifier 720 In operating mode the volume the operating condition and the activated input is shown Except for the Programming Mode the display shows always the current volume level Security advice The IR receiver for the remote
16. ction another for the supply of the digital circuits The stringent separation of the power supply units is amended with a multi stage filter network Interference between digital and analogue circuits is thus minimised The supply voltages for the audio section are multi stabilised We use an amplifier like circuit working into a capacitor The ultra stable supply voltage has a load dependant deviation of 500 microvolt and a residual ripple 0 01 microvolt The supply voltages are distributed on the audio circuit through solid copper 3x6 5 For minimal micro phonic interferences the power supply units are flex mounted on rubber damping elements and therefore effectively decoupled from the housing The high quality supply voltages are made available for external components through the DC OUT connection Page 720 9 soulution 3 6 3 7 3 8 Seite 10 nature of sound En Gain adjustment Different signal sources typically have unequal output levels For minimal volume differences while switching between inputs the preamplifier 720 allows adjusting the gain per input individually This is implemented with an additional amplification stage adjustable for 3 6 9 dB and a level accuracy of 0 01 dB This additional amplification is only active when really needed DC PROTECT The input signal is permanently monitored for DC offsets As soon as a DC offset of 15 mV is detected a high quality capacitor is switched int
17. dB 2 kQ 47 kQ 54 60 dB DC 1 MHz 400 ns 0 0006 1kQ max 16 Vrms 100Q max 8 Vrms 100Q max lA 20 22 1000 12 V 480x450x167 mm ca 30kg Technical specifications are subject to change without prior notification Page 720 41 soulution nature of sound a 13 Dimensions 167 mm 4 1 15 mm 80 mm lt 360 mm 4 gt 450 mm 5i 467 mm gt input volum d E p e e soulution 83 mm 397 mm gt 480 mm 83 mm 397 mm 480 mm Seite 42 14 Definitions Operating conditions OFF Standby P ON PROTECT ON ON POWER FAIL OVER CURRENT LINK ERROR Labelling SYM XLR Female XLR Male ASYM Preamplifier User Manual n UNUS ibo In operating condition OFF only the standby power supply is active Power consumption of 0 5 Watts As soon as the preamplifier 720 is switched on it changes to the operating condition P ON The audio power supply unit is started and the audio channels are checked for potential er rors When constant operating conditions are reached and no errors are detected the preamplifier 720 changes into operat ing condition ON In operating condition ON the preamplifier 720 is ready for operation If the power supply to the audio channels is interrupted or an error in the power supply unit has occurred the preamplifier 720 is shut down automatically The display shows POWER FAIL If the c
18. e Fuse The mains connection has a fuse which protects your preamplifier 720 against too high power consumption The fuse is located within the mains switch on the rear side of the preamplifier 720 Model 220 240 V 50 60Hz 2A T 250V micro fuse 5x20mm Model 100 120 V 50 60Hz 4A T 250V micro fuse 5x20mm Page 720 37 soulution 8 1 Seite 38 nature of sound ae t Trouble shooting Error Action Check the cabling to the mains supply Eventually replace Mey the fuse of your preamplifier 720 Check the cabling to your power amplifier signal sources and from the power amplifier to your loudspeakers whether No music P you have selected the correct input the source device is muted and if the power amplifier is switched on If the power supply to the audio channels is interrupted or POWER FAIL an error in the power supply unit has occurred the preampli fier 720 is shut down automatically The display shows POWER FAIL If the current at the Main Out exceeds 1 ampere the pream plifier 720 is shut down automatically The display shows OVERCURRENT OVERCURRENT Check the cabling to the power amplifier This error may also be provoked by defect or switched off power amplifier Actions after the appearance of an error If you con not identify the error please disconnect the mains supply before you dis connect the preamplifier 720 has to be in operating condition OFF and contact your soulution dealer
19. f not installed and used in accordance with the instructions may cause harm ful interference to radio communications However there is no guarantee that inter ference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encour aged to try to correct the interference by one or more of the following measures adjust or relocate the receiving antenna increase the separation between the equipment and the receiver z connect the equipment into a mains outlet on a circuit different from that to which the receiver is connected consult the dealer or an experienced radio TV technician for help Disposal According to the Directive 2002 96 EG of the European Parliament used consumer electro technical appliances have to be disposed separately and have to be indicated with the following symbol m In the case of disposal of this component please do so in conformity with legal and environmental regulations Preamplifier User Manual Table of contents mor Fe n 0 00 00 00 N AAD w N e O tuno h N e e oa 2 e eic 5 Important security advices ssssssssssseeeeeneen nemen nnne nnn nnns 6 Technical HiGhliGhts ccccccscccssccee cece eeseeeceseeeeeeeeesseseeeeeeeseeeeean nnn 8 ED MMC 8 Volume Comt m 8 Phono Stage moving coil sssssssssss
20. hrough malicious handling Especially for high efficiency loudspeakers this security function should be used After selecting the Program Function Max Volume the dis play shows the value domain red LEDs active and you may define the desired vol ume level Ma unLuse Values 40 80 Default 80 PROG Display for function Max Volume Value domain activated While switching to the value domain of the Program Function Max Volume the pre amplifier 720 will not adjust the volume level for security reasons In the case you limit the volume the control range is reduced accordingly Max Volume 60 the volume control range is limited to 60 dB When you reach the maximal volume level the display shows M for example M 60 Security advice The settings of the Program Functions Gain IN 1 IN 6 and Phono Gain may provoke an additional 9 dB level difference between the different inputs Define the Max Volume for the input with the highest level Balance The Program Function Balance defines the level difference between left and right channel You can adjust the Balance in 1 dB steps After selecting the Program Function Balance the display shows the value domain red LEDs active and you may define the desired volume level Values lt 9 0 9 gt Default 0 PREGE Display for function Balance Value domain activated While switching to the value domain of the Program Function Balance the preampli fier
21. ifier User Manual eo ibo Program Functions Start In This Program Function defines which input shall be active after start up if your pre amplifier 720 After selecting the function Start In the display shows the value do main red LEDs active and you may define the desired input Values IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 Default IN 1 Display for function Start In value domain activated The selected input IN 1 IN 6 will be activated when starting up OFF gt ON the preamplifier 720 the next time Start Record This Program Function defines which input shall be looped through to the record out connectors when starting up the preamplifier 720 After selecting the function Start Record the display shows the value domain red LEDs active and you may de fine the desired input See Values IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 OFF IM 4 Default OFF PRIME Display for function Start Record value domain activated The selected input IN 1 IN 6 will be looped through when starting up OFF gt ON the preamplifier 720 the next time Select OFF if no signal shall be presented at the record out connectors 720 Page 23 soulution 5 2 3 Seite nature of sound En Record Loop In order to avoid a feedback loop with a connected recording device you have to in struct the preamplifier 720 with which input IN 1 IN 6 a feedback loop shall be impeded The preamplifier 720 will now omit a feedback lo
22. in operating condition OFF 0 5 W Preamplifier User Manual E Le LINK System In case you have connected other soulution components to the preamplifier 720 with the LINK System it remains in operating condition PROTECT ON until all con nected components are switched on Display LINK Connect If no errors have occurred while switching on the other components the preamplifier 720 changes into operating condition ON LIHE Connect HUTE i POOH Display in operating condition OFF Display after switch on of LINK Display in operating condition ON components DC protection active When the preamplifier 720 is switched off all connected LINK components are switched off simultaneously operating condition OFF Display after switch off of LINK Display in operating condition OFF components If an error occurs within a LINK component while operating the display shows LINK ERROR Display for an error within a LINK component Security advice Please follow the security advices on page 6 Unplug your preamplifier 720 from the mains before you manipulate with cables before cleaning during thunder storms or before you leave for longer periods Before you switch off the mains bring your preamplifier 720 in operating condition OFF Page 720 17 soulution 4 4 2 4 4 3 4 4 4 4 4 4 1 Seite nature of sound T Mute L Mute is a security function which allows you disconnecting all inputs from
23. k whether the Gain setting is appropriate 28 5 2 11 5 2 12 Preamplifier User Manual n UNUS ibo Security advice Define which signal source has the highest output level Set the gain for this input to O dB Now adjust the other inputs accordingly Please use a moderate volume level to do so If you exchange signal sources you should check whether the gain setting are still appropriate If you run a high level signal source with a high gain the output signal could get distorted Phono Gain This Program Function allows you to adjust the basic amplification of Phono amplifier to the requirements of your cartridge Additionally you have the possibility to use the function Gain In 3 to further adjust the level of the phono amplifier Values high 54 dB 1 kHz rro low 460dB 1 kHz LOW FROG Default low Display for function Phono Gain Value domain activated Phono Gain settings are immediately performed so you can check whether the set ting is appropriate Phono High Pass This Program Function de activates the subsonic filter RIAA IEC 3 dB 20 Hz of the phono amplifier Values ON OFF PHOMO HIGH Default ON Display for function Phono High Pass Value domain activated The settings of the Program Function Phono High Pass are immediately executed for a direct feedback Phono High Pass OFF should be used only for top quality LP s and decoupled turntables For security re
24. maged Serial Nr 720 Please note the serial number of your preamplifier 720 above Page 720 7 soulution 3 1 3 2 3 3 Seite 8 nature of sound t Technical Highlights Layout The preamplifier 720 is realised as asymmetrical dual mono circuit Left and right audio channels incl phono mc stage each have identical circuit boards Resulting in a channel separation of 2105 dB prerequisite for a three dimensional spatial re production The audio section is physically separated from the power supply units and the digi tal circuits For minimal interference the different sections are shielded against each other Volume control Relays switched high precision metal foil resistors form an 80 steps 1 dB volume control Each channel has its own volume control resistor network The volume control allows also adjusting the balance Depending on the balance setting the volume of the left or right channel is decreased In order to avoid unpleasant click noise and harmful voltage peaks while changing the volume the preamplifier 720 disposes over an additional volume control path only active while actually changing the volume This parallel volume control is real ised with a Programmable Gain Amplifier PGA which is able to adjust the volume without any noise As soon as the new volume level is set the signal path is switched to the high end resistor network Phono Stage moving coil The phono stage h
25. o the signal path for op timal protection of the preamplifier soulution 720 The display shows the symbol for the capacitor If the DC offset has disappeared for at least 15 seconds the ca pacitor is switched out of the signal path This ensures optimal protection while si multaneously providing a capacitor free signal path offset free signal prerequisite Bandwidth limitation Another source for potential adulterations of the music is high frequency noise High frequency noise may be coupled through connecting cables or is present in source equipment as artefacts of digital to analogue conversion The bandwidth can be limited individually per input therefore providing optimal sound quality also for HF noise affected input signals 4 1 4 2 Preamplifier User Manual n ONUS ibo Start of operation and handling of the preamplifier 720 Please take care while installing the preamplifier 720 Follow all security advices Scope of delivery and packing Please check the scope of delivery z preamplifier 720 remote control 720 740 incl batteries 2xAAA phono termination plug phono module 100Q phono module 1kQ mains cable z user manual cotton gloves Please store the packing of the soulution 720 for future transports Check your pre amplifier 720 for transport damages In the case your preamplifier 720 is damaged please contact your soulution dealer Security advice If your preamplifier 720 is still ver
26. onnecting cables We recommend using symmetrical cables For short cable lengths also asymmetrical cables represent a high quality connection top quality cable and optimal layout pre requisite The level difference between the symmetrical and asymmetrical output accounts for 6 dB 4 3 7 4 3 8 4 3 9 Preamplifier User Manual n UNUS ibo The symmetrical output Main Out additionally offers the ground lift function The ground lift switch cuts off the ground connection between the audio circuit and the symmetrical output terminal This offers the possibility to suppress a potential humm loop between your preamplifier 720 and power amplifier Ground Lift 1 ground connected Ground Lift O ground disconnected The housing remains grounded independent of the ground lift switch Security advice Please follow the security advices on page 6 LINK G The preamplifier 720 controls the start up sequence of connected soulution com ponents through the LINK connection Master Slave principle the preamplifier 720 is always the Master Connect the Master Out 1 or Master Out 2 terminal of your preamplifier 720 with the other soulution components Each soulution component has Next Slave output to connect further soulution appliances DC Out H The ultra stable power supply of the preamplifier 720 is available for external soulu tion components e g external phono preamplifier external DAC etc through the DC OUT connector
27. op with this input After selecting the Program Function Record Loop the display shows the value do main red LEDs active and you may define to which input you have connected your recording device Values IN 1 IN 2 IN 4 IN 5 IN 6 OFF RECORD LOOP ThE e nes Default OFF PREGE Display for function Record Loop Value domain activated The new setting is active as soon as you approve the value by pressing the Input knob Example You have connected the output of your recording de vice with the input IN 2 of the preamplifier 720 You have defined IN 2 for the pro gram function Record Loop Now it is impossible to choose the input IN 2 as Re cord In The function Record Select is not affected by the settings of the Program Function Record Loop Security advice If later on you connect your recording device to an other input of your preamplifier 720 you have to adjust the setting of the Program Function Record Loop Never connect the output of your recording device to the phono input IN 3 The phono stage would be destroyed immediately Therefore the value IN 3 is not avail able for the Program Function Record Loop 24 5 2 4 5 2 5 Preamplifier User Manual n ibn Start Volume This Program Function defines the volume when starting up the preamplifier 720 After selecting the function Start Volume the display shows the value domain red LEDs active and you may define the desired volume level
28. ropriate handling may cause hearing damages Transport Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving cart apparatus combination to avoid injury or tip over 6 Preamplifier User Manual n UNUS ibo Packing Please keep the original packing for future transports The original packing is opti mal protection against potential damages Operation Never run your preamplifier 720 2 with opened housing with closed cooling slots z with high ambient temperatures gt 40 C close to heat sources like radiators heatings ovens or similar appliances dis sipating heat with extremely high humidity for example in humid cellars or rooms similar humidity close to water Sink bathtub or similar equipment or with any object con taining water residing on top of the product Cleaning Use a soft and dry towel We suggest using a non abrasive micro fibre towel Please do not use any solvents or liquidities Service Do not try to repair your preamplifier 720 by yourself It needs a service check by a qualified person in the following cases the mains cable or the mains connectors are damaged foreign substances or liquidity has entered the preamplifier 720 z the preamplifier 720 has seen rain the preamplifier 720 seems to malfunction the preamplifier 720 has fallen to the floor or the housing is da
29. se you want to overwrite all your individual settings by the factory default val ues you select the Program Function Load Default and you confirm with YES The following values will be loaded DBD DEFBULT Start In IN 1 Bandwidth IN 1 6 HIGH A Start Record OFF Gain IN 1 6 0 YES Record Loop OFF Phono Gain LOW PR GI Start Volume 30 Phono High Pass ON Display for function Load Default Dim Volume 20 Surround IN OFF Value domainactvated Max Volume 80 Surround Max Vol 40 Balance 0 Brightness 3 Name IN 1 6 OFF Remote Ctrl ID 1 Security advice Please note your personal settings in the table Individual Settings on page 44 Software Info This function shows the version of software installed on your preamplifier 720 32 Preamplifier 720 User Manual EE Imm C 6 Remote control The remote control controls all functions of the soulution preamplifiers integrated amplifiers and CD SACD Players You can also access the Program Functions of these products The Volume buttons of the remote control will always control the volume of the soulution preamplifier or integrated amplifier This is also the case when changing the remote con trol to CD mode 6 1 Start of operation and maintenance The remote control requires 2 AAA batteries enclosed in the scope of delivery We recommend using only top quality products Exchange of batteries open the battery tray on the rear side insert the bat
30. sessusrserrrnerrrsrinsrrnerrnsrrnerrnsrrnsrrnna 8 OUTED UE STAGE C 9 Power SUPPLY 9 Gain adjustment c cece cece eecceecceeceeeceeeceeceeeeeeeceueeaeesseeseeeaeeeseeeeeeenees 10 aedem e 10 Bandwidth IRWESEIOTI 2s osea iex rese n e xke ek aerea ek e Ta ek cepa ux r ee CE ek ea P X se Da 10 Start of operation and handling of the preamplifier 720 11 Scope of delivery and packing cccccccccccseccseceeeseecseeeeeeeeesseeeeseeeeeaes 11 Optimal positioning of your preamplifier 720 ccccceccseeeeeeeeeeeeeeenees 11 Rear panel of the preamplifier 720 cccccccccsecceeceeeceeeseeseeesseeeeees 12 Front panel of the preamplifier 720 esses 16 Programming of the preamplifier 720 cccccsececessceceeeeeeeeesseeeeaneeees 22 E E E AA E stone dc lguaveccsspuntte feuseatbastavicctoustessestamtedount 22 Program FUliCtlonis iiec eio eiiiai Ce VE EE EaD 23 Remote COmtrol EET 33 Start of operation and maintenance ccscececeseeeseeeeeeeeseeeseeeeeeeeeness 33 Handling PI HC 33 Protection functions of the preamplifier 720 eeeeeeeseeeees 37 Trouble shiootlng nie opera ninad nra iiaia an 38 Actions after the appearance of an LOF ccceccseeceeeceeeceeeseeeseeeeeeneees 38 Care and maintenance sesseessssssesessssseseeee nennen nennen nnne ne 39 sime 39 Longlite preca
31. st programming of the functions Start Volume and Max Volume If you use re cording equipment the function Record Loop should be programmed as well Switch on your source devices and the preamplifier 720 Turn down the volume of the preamplifier 720 to a minimal level Switch on your amplifier Security advice Before you switch on the amplifier check whether the cabling is done correctly Page 720 5 soulution Seite nature of sound t Important security advices User manual Read this user manual carefully before you start up your preamplifier 720 and fol low all installation and security advices Please keep this user manual In the case this manual gets lost you have the possi bility to download it from the soulution webpage http www soulution audio com downloads Mains supply Exclusively use 3 phase power cords with ground conductor They may not be crushed by objects Unplug your preamplifier 720 from the mains connection in the following cases before you manipulate with cables i before cleaning during thunder storms or before you leave for longer periods Cabling While manipulating with cables the preamplifier 720 has to remain disconnected from the mains Before you disconnect the mains the preamplifier 720 has to be in operating condition OFF Wrong cabling may cause damages to your preamplifier 720 your amplifier or to your loudspeakers Excessive volumes due to inapp
32. t sym Please be aware that the Program Functions Gain IN 1 IN 6 remain active in the Surround Mode If you select for instance 3dB gain for the Surround IN the level 71 will result in a total gain input to output of 3 5 dB Brightness The intensity of the display can be adjusted in three steps BRIGHTHESs Values EIN S 2 medium 3 high PROG Display for function Brightness Default 3 Value domain activated The intensity is adjusted immediately Remote Ctrl ID If you use two different preamplifiers or the Remote Ctrl ID of the preamplifier 720 is already used by another device of your HiFi setup you can change the identifica tion of your preamplifier 720 Factory default is 1 For changing the Remote ctrl ID of the remote control 720 740 please refer to chapter 6 2 11 page 36 After se lecting the Program Function Remote Ctrl ID the display shows the value domain red LEDs active and you can select the desired ID Values 1 2 REMOTE CTRL ID Default 1 PROGI Display for function Remote Ctrl ID Value domain activated The new Remote Control ID will be activated after the Programming Mode is left Page 31 soulution 5 2 17 5 2 18 Seite nature of sound gu C If you change the Remote Ctrl ID the preamplifier 720 can only be controlled by the remote control 720 740 after you have switched the Remote Ctrl ID of the remote control 720 740 alike Load Default In ca
33. teries into the tray as indicated Ensure correct polarity of the batteries close the tray with corresponding screw dispose the exhausted batteries 6 2 Handling 6 2 1 IR Transmitter 1 Ensure that the IR Transmitter is not covered and that the IR Receiver is not hided by any objects The remote control works up until a distance of 5m and a maximal angel of incident of 45 Page 33 soulution 6 2 2 6 2 3 6 2 4 6 2 5 Seite nature of sound gu C Input Next Track 5 6 PRE mode The Input buttons switch between the different inputs With the Enter button you change to the Record select mode In this mode the Input x buttons allow to select the Record IN CD modus The Next Track buttons skip the tracks forward or backward In Programming Mode Prog button the Input buttons allow to select the desired function and the Enter button confirms the selection If the value domain of a func tion is activated the Input buttons allow setting the new value and Enter button confirms the new setting Volume Dim Play Pause 4 PRE mode Pressing the Volume Dim button de activates the Volume Dim function of the preamplifier or the integrated amplifier CD mode The Play Pause button controls the Play Pause function of the CD SACD Players Volume 2 3 The Volume buttons control always the volume of the preamplifier integrated am plifier irrespective of the PRE CD mode of the remote
34. the out puts in case of an urgency wrong cabling feedback loops etc Mute cuts off the symmetrical as well as the asymmetrical outputs and the record out Display MUTE For reducing the volume to a predefined level please use the function Volume Dim IM 4 MUTE LH Display in operating condition MUTE Prog M The Prog button switches the preamplifier 720 between Operating Mode and Pro gramming Mode In the Programming Mode you may adjust the preamplifier 720 to your individual requirements Volume N The Volume knob controls the functions Volume and Volume Dim Volume The preamplifier 720 disposes over a volume control range of 80 dB The volume is adjustable in 1 dB steps Display O no signal mute l lt lowest level attenuation by 79dB 80 maximal level no attenuation Turning the Volume knob clock wise increases the volume turning counter clock wise decreases the volume In order to omit too high volumes we suggest limiting the volume individually with the function Volume Max When you reach the maximal 18 4 4 4 2 4 4 5 4 4 5 1 Preamplifier User Manual n UNUS ibo level the display shows for example M 60 The volume can not be further increased by turning the volume knob Volume Dim By pushing the Volume knob the volume is reduced to the predefined level Volume Dim Display for example D 10 By pushing the Volume knob again the volume is increased to the
35. uld be destroyed Page 720 13 soulution 4 3 4 4 3 5 4 3 6 Seite 14 nature of sound t Asymmetrical inputs IN 4 IN 6 D Your preamplifier 720 has three asymmetrical inputs IN 4 IN 6 Connect your sig nal sources with asymmetrical cables with the preamplifier 720 Security advice please follow the security advices on page 6 Record Out E Connect the inputs of your recording device with the Record Out terminals of the preamplifier 720 asymmetrical cables The selected Record In signal is directed to the Record Out terminals through a separate signal path Volume Balance or Gain settings do not affect the signal at the Record Out terminals For level adjustments please use the respective control functions of your recording device The signal present at the Record Out terminals is buffered and has an output im pedance of 100Q Therefore cable losses are minimised and top quality music sig nal is available for recording Security advice Please follow the security advices on page 6 If you connect a recording device you should define the function Record Loop Thus you omit eventually harmful feedback loops Main Out F The preamplifier 720 provides symmetrical as well as asymmetrical output termi nals Main Out Connect your amplifier to the preamplifier 720 with your preferred cables Due to the exceptional load stability there are no restrictions regarding the selection of your c
36. urrent at the Main Out exceeds 1 ampere the pream plifier 720 is shut down automatically The display shows OVERCURRENT In the case other soulution components are controlled via the LINK connection the preamplifier shows in the display LINK ERROR if an error has occurred Abbreviation for symmetrical connectors e 1 Ground 2 Phase 3 Phase 1 Ground 2 Phase 3 Phase Abbreviation for asymmetrical connectors Page 720 43 soulution 15 Seite nature of sound C Individual Settings Function Setting Default Value Start In IN 1 Start Record OFF Record Loop OFF Start Volume 40 Dim Volume 10 Max Volume 80 Balance 0 Name IN 1 OFF Name IN 2 OFF Name IN 3 OFF Name IN 4 OFF Name IN 5 OFF Name IN 6 OFF Bandwidth IN 1 HIGH Bandwidth IN 2 HIGH Bandwidth IN 3 HIGH Bandwidth IN 4 HIGH Bandwidth IN 5 HIGH Bandwidth IN 6 HIGH Gain IN 1 0 Gain IN 2 0 Gain IN 3 0 Gain IN 4 0 Gain IN 5 0 Gain IN 6 0 Phono Gain LOW Phono High Pass ON Surround IN OFF Surround Max Vol 40 Brightness 3 Remote Ctrl ID 44 Spemot AG Industriestrasse 70 CH 4657 Dulliken www soulution audio com info soulution audio com soulution nature of sound part no 92130
37. utlolls cisco cen cess sevo EVER ve ah ERR VOD DER DENS PPNYA 39 eI nmipec E 39 Nim n 40 Ec 40 DPCCIPICALIOMS ix et Al Blas 42 BITTE A A T E A T 43 Individual Settings irritat oer exte ie eed ete ies EAA EEEE 44 Page 720 3 Quick start Unpacking Positioning Cabling Programming Switch on Preamplifier User Manual n UNUS ibo Unpack the preamplifier 720 and store the packing for future transportations Security advice Your preamplifier 720 has a top class surface Please take care during installation Position the preamplifier 720 on a stable base Security advice Cooling air must be able to circu late and escape unrestricted Disconnect all electrical appliances of your HiFi system from the mains supply Connect your preamplifier 720 with your amplifier and signal sources according to user manual Use the respective signal cables and the cable for the LINK system Reconnect the preamplifier 720 and all other components of your HiFi system with mains supply Please use the enclosed high class mains cable for your preamplifier 720 Security advice While manipulating with cables the preamplifier 720 has to remain disconnected from the mains supply Default values for all functions are programmed No additional programming is required for the start up of your preamplifier Security advice We sugge
38. y cold from the transport please let it warm within the packing in order to omit condensation of water inside your preamplifier 720 Optimal positioning of your preamplifier 720 There are no limitations on where to position your preamplifier 720 We suggest po sitioning it so that the connecting cables to the amplifier and the signal sources re main short Security advice The preamplifier 720 has a high quality surface Please be careful so that the surface does not get scratched Please use the en closed cotton gloves Never position your preamplifier 720 on the front panel The display glass could get scratched or even burst Page 720 11 soulution 4 3 4 3 1 Seite nature of sound gu C Rear panel of the preamplifier 720 JIHA G F F ED DD C B B Rear panel of the preamplifier 720 Mains A Connect the preamplifier 720 with the mains supply The enclosed power cord is optimised for this application After switch on the power supplies of the preamplifier get started The display shows WAIT As soon as constant conditions for the power supplies are reached the preamplifier 720 changes to operating condition OFF red LEDs in display WATT i Display after switch in of the mains Display in operating condition OFF Security advice Only switch off the mains connection if your preampli fier is in operating condition OFF 12 4 3 2 4 3 3 Preamplifier User Manual n UNUS ibo
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