User`s Manual
Contents
1. texts are AUDIONET or DD Push the set button once again to finish programming Note If no changes are made for 10 seconds your PRE 1 G2 will automati cally exit the programming menu Mute Mains phase recognition Using the remote control All functions of the PRE 1 G2 can be operated by the Audionet remote control in the same way as described for the front panel For setting the volume level please push or of the remote control vol ume button pair The button mon corresponds to monitor set button push short for selecting the monitor loop push long for selecting the pro gramming functions Using the remote control the inputs can be selected directly Additionally the following functions are possible PRE 1 G2 has a soft mute function If desired to mute PRE 1 G2 please press the mute button on the remote control When muting PRE 1 G2 regulates volume down to 80 dB and then switches off the outputs If you press the mute button again PRE 1 G2 activates the outputs and re turns to the volume before If the mains phase is connected incorrect the PREI G2 will tell you while starting up Attention Mains phase incorrect Switch off your PRE 1 G2 and change the position of the mains plug at your wall socket If the mains phase is connected correctly no warning will appear in the display while starting up 10 Rear view 1 7 in rr en TH 09 05A OvT 0 T2. 2 is programmable for functions providing you with new and easy possibilities to adjust the system to your needs All individual settings will be remembered also when PRE 1 G2 will be switched off the mains or transported You can program the following The balance can be adjusted to individual preferences Inputs which usually have different signal level can be adjusted to the same volume Inputs can be given an individual name The brightness of the display can be adjusted Dim Value Automatic startup can be switched on or off Autostart You can choose between two texts being displayed while in stand by mode Off Text The 2 line alphanumeric display will give you all information you need about your individual settings Number of selected input and given name of input or number of se lected input and monitor or assigned name Volume and assigned offset visualized balance setting as well Balance Volume offset Name programming The programming ignition sequence is entered pressing the monitor set button longer than one second For programming please do the following 1 Push the monitor set button once for at least one second 2 Now you are enabled to adjust the stereo balance of your system Turning the volume knob clockwise decreases the level of the left channel turning counter clockwise will decrease the right channel s level The level of every stereo channel can be decreased up t
3. Audioner PRE I G2 Stereo Pre Amplifier Owner s Manual How to operate the Audionet PRE 1 G2 Your Audionet PRE 1 G2 is a high performance audio pre amplifier This system is designed for absolute natural music reproduction and for highest user comfort The following will give you all information about how to operate your PRE 1 G2 Please read this carefully before the first use Following these instructions your PRE 1 G2 will give you long lasting pleasure and satis faction Power supply Ground Connection Audio sources Inputs Connecting the system Please connect the power jack 1 at the rear with your wall outlet Please refer to page 8 Use the provided power cable or another one allowed for your home country specifications NOTE The power specifications 2 on the rear must meet to your home country specifications The mains button 3 at rear must be switched off The PRE 1 G2 is a Class I system and must be earthed Please ensure that the earth connection is in best condition For best performance connect the hot wire seeing from the front with the left pin With the PRE 1 G2 comes a yellow green ground cord for optimal ground connection Please connect this additional ground cord to the plug 10 at the back of the PRE 1 G2 and put the plug into a socket near to the power cord The Audionet PRE 1 G2 is a very sensitive system Please ensure that all used connector cables are in absolutely best cond
4. OV CD I AUd Jouoipny 4214 away 11 Fundamentals Power supply Circuit Features Technical information The circuit is constructed implying the shortest possible signal paths to ensure best high frequency characteristics The ground is focused in one centre point All construction is optimised in capacity and inductive man ner The system is supervised and controlled by a powerful microprocessor The digital section is separated and shielded from the analog section The power supply is provided by a 100 VA toroid transformer The filter capacity is as large as 40 000 uF All supply voltages are cleaned twice by pre voltage regulators and local voltage regulators All amplifiers are optimized using the most modern discrete circuitry The volume is regulated by a precision resistor network instead of a simple and fault susceptible potentiometer The PRE 1 G2 is driven by a microcontroller system Information about the current state is shown by a 2 16 character display Input names can be set individually as well as the volume offset of each input channel There is a separate menu available to adjust the balance Overall the PRE 1 G2 offers 6 inputs You can connect two different power amplifiers as well Two high performance outputs and a powerful monitor loop for recording and controlling purposes are also available Optional features are a IR remote control phono module 24bit D A con verter and external power su
5. ching on your PRE 1 G2 please press the power button at the front panel The PRE 1 G2 needs 5 seconds for waking up and then works To switch off the PRE 1 G2 please press the power button again and the PRE 1 G2 needs 5 seconds again for going to sleep storing all your latest settings To set the desired volume please turn the volume knob at the front panel Please turn clockwise if higher and counterclockwise if lower volume is desired The PRE 1 G2 shows you the master volume with a range of 86 dB This corresponds to 80 dB to 6 dB At 0 dB the amplitudes of input and output signal are equal To adjust the volume offset for each separate channel please read programming below The volume knob is an incremental impulse unit without a stop Please turn the input button at the front panel to select one of the seven inputs The PRE 1 G2 sequentially selects the inputs from No 1 to No 6 When changing the input the PRE 1 G2 regulates the volume down to 80 dB mutes the outputs switches the inputs activates the outputs and finally regulates volume up to the level before Monitor loop Programming Display To activate the monitor input please push the monitor set button for a short time The originally selected input remains active for recording This input can be chanced during the monitor loop is activated of course To come back to the standard input simply press the described button a second time Your PRE 1 G
6. et up the unit in a free position so that the air is al lowed to flow through the unit slits Do not cover e g with a blanket Do not open the case Unauthorized opening will cause loss of guarantee Use a dry cloth for cleaning Engineered and produced by Idektron GmbH amp Co KG Herner Str 299 Geb ude 6 44809 Bochum www audionet de contact audionet de 14
7. f Text l Push the set button four times for at least one second The display changes to Set Dim Value The brightness can be adjusted in five steps OFF 25 50 80 100 Default brightness is 50 To leave the programming mode push the monitor set a short time Alternatively you can proceed adjusting to the next step with another long keypress go on with 2 in this case If the display brightness is set to OFF the following is still displayed l mute state selecting a new input displayed for approx 3 seconds all programming Push the set button five times for at least one second The display changes to Set Autostart If autostart is set to OFF the PRE 1 G2 stays in the standby mode after switching on with the mains switch 3 until the power button is pushed If autostart is set to ON the PRE 1 G2 starts automatically into the on mode after switching on with the mains switch 3 Select this option if you use a timer to control the PRE 1 G2 Select the autostart option by turning the volume knob To leave the programming mode push the monitor set a short time Alternatively you can proceed adjusting to the next step with another long keypress go on with 2 in this case Push the set button six times for at least one second The display changes to Set Off Text Now you can choose the text to be displayed when your PRE 1 G2 is in stand by mode by turning the volume knob The possible
8. ition For connecting or removing audio sources PRE 1 G2 has to be switched off stand by state or must be muted The Audionet PRE 1 G2 has one balanced and five unbalanced high level RCA inputs 4 Additionally a true monitor loop is available Please con nect left and right inputs to the corresponding outputs of the designated high level source Outputs Recording systems Rec out Monitor Phono Audionet link The Audionet PRE 1 G2 has one unbalanced output 5 and one balanced output for connecting power amplifiers Please connect left and right outputs to the corresponding inputs of your power amplifier Two recording systems can be connected at the same time to PRE 1 G2 for recording and playing back simultaneously For recording please connect the inputs of your recording system like DAT or tape deck with the rec output 6 of your PRE 1 G2 Every time when the recorder is connected to the rec outputs please use the inputs No 5 named Tape for playing back When input No 5 is selected the corresponding rec output will be muted This is necessary to prevent destructive oscillation of the pre amplifier and the recorder Therefore every signal source that should be recorded has to be connected to the remaining inputs Your PRE 1 G2 is fitted with a monitor loop This enables you to listen to the recorder without interrupting the signal source being recorded To use this feature please connect the inputs and outp
9. o 9 1 dB The setting is displayed numerically and a symbol 3 To leave the programming mode push the monitor set a short time Alternatively you can proceed adjusting to the next step with another long keypress go on with 3 in this case 1 Select the channel to be adjusted 2 Push the set button twice for longer than one second The display shows you the channel number and offset adjust 3 Turn the volume knob to adjust the desired channel level This is pos sible within a range of 9 1 dB to the master volume 4 To leave the programming mode push the monitor set a short time Alternatively you can proceed adjusting to the next step with another long keypress go on with 3 in this case 1 Select the channel to be given a new name 2 Push the set button twice for at least one second The display changes to Text adjustment 3 For individual naming there are 14 characters per input channel and 12 characters for the monitor loop available A cursor indicates the cur rent character to be edited Turn the input switch to move the cursor in the appropriate direction Select a character from a character set consisting of letter numbers and symbols by turning the volume knob 4 To leave the programming mode push the monitor set a short time Alternatively you can proceed adjusting to the next step with another long keypress go on with 2 in this case Set display brightness Set Autostart Set Of
10. pply Audionet EPS 12 Technical Data Function microprocessor controlled preamplifier Bandwidth 1 3 000 000 Hz 3 dB THD gt 105 dB 20 Hz to 20 kHz SNR gt 110 dB for 5 Vrms Crosstalk stereo gt 100 dB at 1 kHz btw Inputs gt 103 dB at 1 kHz source monitor gt 100 dB at 1 kHz volume linearity typ 0 03 dB output impedance 22 ohms output voltage max 7 Vrms output current max 30 mA input voltage max 5 Vrms Inputs 5 high level RCA inputs gold plated 1 balanced XLR input gold plated 1 GND 2 Pos 3 Neg 1 RCA monitor input gold plated 7 pin plug for Audionet EPS Outputs 1 line out RCA output gold plated 1 balanced XLR output gold plated 1 GND 2 Pos 3 Neg 1 rec out RCA output gold plated 1 RCA monitor output gold plated 1 plug for additional ground connection gold plated 1 Audionet Link optical Mains 230 V 50 Hz dimensions 430 mm 70 mm 310 mm w h d finish front brushed black aluminium white printing top black microlized aluminium optional front brushed nature aluminium printing black options remote control phono MM MC preamplifier 24bit D A converter external power supply EPS Subject to modification 13 Security advice Avoid packaging material especially plastic bags to come into children s hands Store and operate the unit in a dry room at a reason able room temperature Avoid moisture or any liquid to get into the unit S
11. uts of the recorder with the corresponding monitor output and input 7 of your PRE 1 G2 Your PRE 1 G2 can be equipped with an optional phono preamplifier For connecting a record player please use the input 6 and the corresponding ground connector in this case In combination with the Audionet AMP VAMP II and or DAC the PRE 1 G2 can switch on and off the whole system Please connect the Audionet link 8 on the rear with a Toslink optical fibre cable to the Audionet link of AMP I and or DAC Switching on and off the mains Your PRE 1 G2 is designed as a stand by unit To bring your PRE 1 G2 into the stand by state please press the mains power switch 3 on the rear The PRE 1 G2 will come up in the stand by state displaying Audio net Switching off the mains at the rear is only necessary in cases of longer absence like holidays In this case please press again the mains power switch on the rear Looking from above the switch now shows you a 0 and the display turns off NOTE All systems connected with the outputs must be off and powered down when PRE 1 G2 is to be switched on or off the mains at the rear Switching on and off in the stand by state Setting the volume level Selecting the inputs Operating the system All functions of your PRE 1 G2 are completely microprocessor con trolled This guarantees highest precision exclusive functions easy opera tion and protection against operational faults For swit
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