Laney Amplification CA600 User's Manual
Contents
1. 4dB 260B lt OdB Servicing The CA series contains no user servicable parts Warning Dangerous voltages may remain inside the unit for a short period after the amplifier has been turned off Do not operate with the covers removed Refer servicing to factory or qualified service engineer In the unlikely event of service being required The amplifier should always be shipped in its original protective carton CA MANDAL E mremur Lancy BLT Industries Ltd Newlyn Road Cradley Heath West Midlands B64 OBE Tel 0044 0 1384 633821 Fax 0044 0 1384 639186 Http www laney co ukK In the interest of continued product development BLT Industries Ltd Reserves the right to amend product specification wihtout prior notification2. 10 Input level indicator channel 1 Indicates the level of signal running through channel 1 Reset Button AMP 1 CH1 CH2 Should the unit be connected in error and experience a continuos overload situation such as connecting the unit to an incorrect supply voltage or should the amplifier experience a catastrophic component failure then the reset button will trip This will cause the unit to completely shut down and all power to the amplifier will be removed Once the unit has tripped the reset button needs to be pushed in If the unit fails to reset itself immediately then the amplifier should be looked at by a qualified technician Consult your dealer Power switches Used to switch each separate power amplifier unit on and off Reset Button AMP 1 CH3 CH4 Should the unit be connected in error and experience a continuos overload situation such as connecting the unit to an incorrect supply voltage or should the amplifier experience a catastrophic component failure then the reset button will tip This will cause the unit to completely shut down and all power to the amplifier will be removed Once the unit has tripped the reset button needs to be pushed in If the unit fails to reset itself immediately then the amplifier should be looked at by a qualified technician Consult your dealer Input level indicator channel 3 Indicates the level of signal running through channel 3 Channel 3 input gain Sets the level of the input signal to chann
3. Powar caneumption 2 Amp2 Cold 2 Ohms y S When using BRIDGE tut Bridge modo only connect 2 n a Min Load q 2 ma 4 Ohms 4 C dd WAY po ers to the To reduce the risk of electr tie shock do not remove covers Risque de choc alecifauo ne pas ouvrir To reduce the risk che D electric shock do not expose this appliance t to rain or moisture IDGE terminal not No user serviceable parts inside Barer servicing tp qualified nee nly Debrancher le cordon d afi fmertation avant toute intervention 1 Aare Ha Amp2 Pas ne he 2 n a _e nnel 2 Made in the United Kingdom by BLT Industries Ltd si BA Brid On oe ereo Bridge i Ind Lout Optional Ground Link Channel 1 Jack Pin Connections Tip Hot Ring Cold Shield OV 2 Sie oi Channel 1 input gain Sets the level of the input signal to channel 1 The visual LED s give the user an indication of the signal level running through the pre amplifier The levels should be set as to minimize the level of clipping When the red LED is lit the signal is approaching clipping and some degree of sound degradation may occur if the signal is clipped continuously Bridge indicator This LED indicates that the amplifier is running in bridged mode 14 When running in bridged mode channel 1 s level control acts as the master level control Channel 2 input gain Sets the level
4. and 2 are controlled by 37 and channel 3 and 4 are controlled by 48 Stereo Mode Each input is sent to its respective output Dual Mono Channel 1 input is routed to outputs 1 and 2 Channel 3 input is routed to outputs 3 and 4 Channels 2 and 4 inputs are not used Bridge Channel 1 input is routed to bridge connector 60 Channel 3 input is routed to bridge connector 70 Only the bridge terminals should be used in bridge mode The NL4 Speakon TM output connectors have four pins 1 1 2 2 In normal operation the 1 pin carries the hot signal 1 the cold signal Channel 1 output also carries channel 2 output on 2 hot 2 cold Channel 3 output also carries channel 4 output on 2 hot 2 cold This is to aid the connection of biamped enclosures and the use of four core loudspeaker cable IMPORTANT Take care not to use 2 2 if they are not needed as some manufacturers actually join 1 and 2 together on their loudspeakers Typical wiring for Biamp use would be Channel 1 Lo frequency 1 1 Channel 1 Speakon output Channel 2 Hi frequency 1 1 Channel 2 speakon output Channel 1 2 Stereo mode Typical wiring for Triamp use would be Channel 1 2 Lo frequency 1 1 Bridge Speakon output Channel 3 Mid frequency 1 1 Channel 3 speakon output Channel 4 Hi frequency 1 1 Channel 4 speakon output Channel 3 and 4 could also be wired biamped as above using one four pole connector on channel 3 outp
5. in any doubt consult a qualified service engineer For details on changing sensitivity setting see page 13 The 1 4 Jack and 3pin XLR inputs are wired in parallel 5 Pinl Ground Be Pin2 Hot L Sleeve Screen GND Pin3 Col Ring Cold Tip Hot ip 1 For all input wiring use good quality shielded wire only Cables with foil wrap shield or a high density braid are superior Cables with stranded spiral shield although flexible will break down over time and coase noise problems 2 Try to avoid unbalanced lines with professional equipment If you have no choice keep the cables as short as possible 3 To minimise hum and crosstalk avoid running low level input high level output and AC power feeds in the same path Try to run differing signal paths at 90 degrees to each other If you must use a common path for all cables use a star quad cable for the low level signals 4 When changing input connectors or wiring Always turn the amplifier volume controls all the way down anti clockwise 5 When changing output connectors always turn the amplifier volume levels fully down and preferably switch off mains supply Output Wiring 1 To maintain good bass response Always use the lowest DC resistance cable you can afford which will terminate safely in your connector 2 To prevent short circuits Always wrap or otherwise insulate exposed loudspeaker cable connectors 3 Do not use connectors that could accidently
6. 11 Connect your instrument with a high quality shielded instrument cable Use of cheap cables will compromise the sound of your instrument and your amplifier If there is a problem with your Laney CA amplifier DONT PHONE YOUR DEALER Care of your Laney amplifier will prolong it s life and yours CA MANDAL Laney IMPORTANT SAFETY INSTRUCTIONS WARNING When using electric products basic cautions should always be followed including the following GO PG Ns N 11 12 13 14 15 16 17 Read all safety and operating instructions before using this product All safety and operating instructions should be retained for future reference Obey all cautions in the Operating instructions and on the back of the unit All operating instructions should be followed This product should not be used near water i e a bathtub sink swimming pool wet basement etc This product should be located so that its position does not interfere with its proper ventilation It should not be placed flat against a wall or placed in a built up enclosure that will impede the flow of cooling air This product should not be placed near a source of heat such as stove radiator or another heat producing amplifier Connect only to a power supply of the type marked on the unit adjacent to the power supply cord Never break off the ground pin on a power supply cord Power supply cords should always be handled carefully Never walk or place equip
7. Asser 7 7 JauuPU CE uoljiafasg ejex OO 442454405 SUIPW u01J 3J0J4 old 74 samo Ae Oo uoljafosg Aejay papaau jou ji suid ndjno 7 7 jdauuod JOU Og INOLLNVI spou sbplug ul Jojd3uu03 86p11g asn AjUQ iNOILAYI 00S1 009V gieuueu abpiag Q qQoo aBuis o DIA Buldweig J04 Z jauueys Asser 7 7 jauueY b System Diagram Laney ji l uolj18 014 Aejay EF Oo Je 154405 SUIEW E 2 i Uj 401d H Janod ae a K L 0 0 uolyda youd kejoy SINdINO 9 D31245 ACT eng abplig duy NA SA WA apo bpug o 031345 Zdwy NA auoj Jeng du 44nduy 439195 uley JUAN I E ISA k Ta an J3919 UIPD S M d A A Z2Un OA YA zindu at 12818S UIPD ILIUNDA i gt 422125 uep Lndu 7 o 0 SINd o 0 N CA MANDAL Laney explanation of terms CA600 CA1 500 924 o _ angy mee E Camco Power qp CD O oS EXC Fk OOO H ER ee mie e 1 Ampt Hot Ampi 1 Ampt Cold Supply voltage Anya Hor Min Load 2 2
8. Laney Ce SERIES Power Amplifiers OPERATING MANUAL Laney INTRODUCTION Congratulations on your decision to purchase a Laney amplifier Laney products are designed with ease of operation as a primary objective however to ensure you derive the best from your new amplifier it is important you take time to read this user manual and to familiarise yourself with the control functions and facilities available BEFORE SWITCHING ON After unpacking your amplifier check that it is factory fitted with a three pin grounded or earthed plug Before plugging into the power supply ensure you are connecting to a grounded earth outlet If you should wish to change the factory fitted plug yourself ensure that the wiring convention applicable to the country where the amplifier is to be used is strictly conformed to As an example in the United Kingdom the cable colour code for connections are as follows EARTH OR GROUND GREEN YELLOW NEUTRAL BLUE LIVE BROWN This manual has been written for easy access of information The front and rear panels of each unit are graphically illustrated with each control and feature numbered For a description of the function of each control feature simply check the number with the explanations adjacent to each panel When you first recieve your Laney CA amp follow these simple procedures 1 Ensure that the amplifier is set at the correct voltage for the country it is to be used in
9. Level dBA slow response 90 92 95 97 100 Vo 102 105 2 110 Ya or less 115 Ss ND amp B According to OSHA any exposure in excess of the above permissible limits could result in some hearing loss Ear plugs or protectors in the ear canals or over the ears must be worn when operating this amplification system in order to prevent a permanent hearing loss if exposure exceeds the limits set forth above To ensure against potentially dangerous exposure to high sound pressure levels it is recommended that all persons exposed to equipment capable of producing high sound pressure levels such as this amplification system be protected by hearing protectors while this unit is in operation Lightning Bolt Symbol Exclamation Mark Symbol This symbol is used to alert the user to the presence This symbol is used to alert the user to make special note of of dangerous voltages and the possible risk of important operating or maintenance instructions found in the electric shock reference manual SAVE THESE INSTRUCTIONS CA MANUAL Laney Indroduction The CA range of amplifiers use a new power output topology This enables a design which has all the high efficiency benefits of a class D type digital topology but without the usual draw backs of poor distortion and difficult to control EMC problems The CA design uses microprocessor controlled high frequency switching of state of the art output power FETs Most switching amplifiers
10. OPTIONAL Activates the onboard Limiter which prevents the output section being driven into clipping allowing the amplifier to be run at maximum output without experiencing unwanted distortion Jack Socket Channel 1 A jack input option is provided for Channel 1 here XLR Input Channel 1 An XLR input option is provided for Channel 1 here Pin connections for the XLR connection are Pin 1 OV Pin 2 Hot and Pin 3 Cold Protect This LED indicates that one or both output sections of the CA3000 amplifier have been run into extreme conditions such as to low an impedance at to high a level for to long a period In the situation that Protection is engaged the output section is automatically disconnected from the speakers and then shut down All the other functions of the amplifier continue to function as normal but the amplifier will produce no sound To reactivate the amplifier it must be switched off left for a few seconds and switched back on again via the main power switch 29 CA MANDAL Laney 13 Specification Model Output Power per Channel 1 THD Typical Total Power Consumption Bridge Bridge 2 Ohms 4 Ohms 8 Ohms 4 Ohms 8 Ohms 1 3 power music 4 Ohms CA600 300W 200W 160W 600W 400W 220W CA1500 750W 550W 350W 1500W 1000W 500W CA3000 750W 550W 350W 1500W 1000W 1000W x4 x4 x4 x2 x2 In bridge mode the amplifiers will operate comfortably at 4 Ohms enabling very high output le
11. able at this soeakon on the 2 2 terminals of the NL4 connector In Bridge Mode NO signal is present at this connector Speakon Connector Amp 1 Speakon connector for connecting external speaker The signal present at this connector is determined by the power amp mode setting 48 for this power amplifier In Stereo Mode the signal present is derived from Channel 1 input In Dual Mono mode the signal present is derived from Channel 1 input but whatever signal is present at 34 is also available at this soeakon on the 2 2 terminals of the NL4 connector In Bridge Mode NO signal is present at this connector Speakon Connector Bridge Speakon connector for connecting external speaker The signal present at this connector is determined by the power amp mode setting 48 for this power amplifier The Bridge speakon connector should only be used when the power amplifier mode switch 48 is set to Bridge When in Bridge mode the signal present at the connector is derived from the input of Channel 1 XLR Inout Channel 2 An XLR input option is provided for Channel 2 here Pin connections for the XLR connection are Pin 1 OV Pin 2 Hot and Pin 3 Cold Jack Socket Channel 2 A jack input option is provided for Channel 2 here Power amp mode switch See 37 for explanation Ground Link Switch This switched is used to reduce unwanted interference such as multiple earth loops etc and does so by isolating the grounds of the input sockets only Limiter
12. ch of the two output connections 10 19 In Dual Mono mode the signal present at Channel 1 input is sent to both amp 1 output 10 and amp 2 output 19 In Dual Mono mode channel 2 is not active The final mode of the power amplifier is Bridge mode In Bridge mode each individual power amplifier section is summed together producing maximum output In Bridge mode Channel 1 acts as the master channel Please note when selecting Bridge Mode the minimum impedance is 4 Ohms Ground Link Switch This switched is used to reduce unwanted interference such as multiple earth loops etc and does so by isolating the grounds of the input sockets only Limiter Activates the onboard Optional factory fitted Limiter which prevents the output section being driven into clipping allowing the amplifier to be run at maximum output without experiencing unwanted distortion Jack Socket Channel 1 A jack input option is provided for Channel 2 here When the power amplifier section is running in either Dual Mono or Bridge mode channel 1 acts as the master input channel XLR Inout Channel 1 An XLR input option is provided for Channel 2 here Pin connections for the XLR connection are Pin 1 OV Pin 2 Hot and Pin 3 Cold When the power amplifier section is running in either Dual Mono or Bridge mode channel 1 acts as the master input channel Speakon Connector amp 2 Used to connect an external speaker cabinet The signal present at this connection is dependent on the mode
13. el 3 The visual LED s give the user an indication of the signal level running through the pre amplifier The levels should be set as to minimise the level of clipping When the red LED is lit the signal is approaching clipping and some degree of sound degradation may occur if the signal is clipped continuously Speakon Connector amp 4 Speakon connector for connecting external speaker The signal present at this connector is determined by the power amp mode setting 37 for this power amplifier In Stereo Mode the signal present is derived from Channel 4 input In Dual Mono mode the signal present is derived from Channel 3 input In Bridge Mode NO signal is present at this connector Speakon Connector amp 2 Speakon connector for connecting external speaker The signal present at this connector is determined by the power amp mode setting 48 for this power amplifier In Stereo Mode the signal present is derived from Channel 2 input In Dual Mono mode the signal present is derived from Channel 1 input In Bridge Mode NO signal is present at this connector XLR Input Channel 4 An XLR input option is provided for Channel 4 here Pin connections for the XLR connection are Pin 1 OV Pin 2 Hot and Pin 3 Cold Jack Socket Channel 4 A jack input option is provided for Channel 4 here TM Speakons For amplifiers the most popular termination device on professional products has been the dual banana However recent regulatory requirements in Europe
14. have outlawed the use of the dual banana It is possible that similar regulatory controls will appear worldwide over the next few years One solution to this problem is to use the Neutrik Soeakon connector The major loudspeaker manufacturers have been using Speakon connectors for the input termination on their products for several years now so you can be assured of the connector s reliability in the workplace With Speakon tm connectors you can plug straight from the amp to the speaker and start making those great sounds right away The Speakon connectors used on our amplifiers meet all Known safety regulations Once wired correctly the connector cannot be plugged in backwards causing the type of inverted polarity situations that are common with banana hookups It will provide a safe secure and reliable method of interfacing your amplifier to the load Speakon i Trademark of Neutrik AG CA MANDAL 11 Laney Gr Power amp mode switch The CA3000 is a four channel power amplifier Arranged as channels 1 2 3 and 4 These are configured as two totally separate stereo amplifiers Channel 1 and 2 are treated as a pair Channel 3 and 4 are treated as a pair These channels can be used A Stereo Mode All channels run independently B Dual Mono One signal sent to both amps C Bridge Channel 1 and 2 can be bridged together as can 3 4 Cont These modes are controlled via the mode selector switch on the rear panel Channel 1
15. ls with associated five band LED level displays The rear panel features bridge mono mode switching and a signal earth lift The amplifier avoids the use of conventional unreliable fuses and uses automatically resetting devices for the internal electronics and a front panel mounted manual re settable overload cutout Protection circuitry covers over and under voltage operation short open circuit load conditions DC Voltage and excessive input signals Soft start circuitry is included to reduce switch on surges from the mains power Automatic output muting is included to avoid extraneous noise appearing at the speakers at turn on and turn off from the amplifier or other units in the sound system Much work has been carried out to ensure EMC compliance is well within European and US standards for present and future standards Three models are currently available CA600 CA1500 CA3000 Applications include use as recording studio monitor and stereo broadcast amplifier Professional PA amplifier and Esoteric hi fi amplifier etc To gain maximum benefit from your amplifier please read and understand the instructions in this handbook The amplifiers have been created to meet any condition you may use them for Enjoy CA MANDAL Laney Inout Wiring The CA amplifier is factory set to 4dB input sensitivity and internally selectable to either OdB 4dB or 26dB system Setting the input sensitivity requires the removal of the top cover If
16. ment on power supply cords Periodically check cords for cuts or signs of stress especially at the plug and the point where the chord exits the unit The power supply cord should be unplugged when the unit is to be unused for long periods of time If this product is to be mounted in an equipment rack rear support should be provided Metal parts can be cleaned with a damp cloth The vinyl covering used on some units can be cleaned with a damp cloth or ammonia based household cleaner if necessary Disconnect the unit from the power supply before cleaning Care should be taken so that objects do not fall and liquids are not spilled into the unit through any ventilation holes or openings A qualified service technician should check the unit if The power cord has been damaged Anything has fallen or spilled into the unit The unit does not appear to operate correctly The unit has been dropped or the enclosure damaged The user should not attempt to service the equipment All service work is done by a qualified service technician Exposure to extremely high noise levels may cause a permanent hearing loss Individuals vary considerably in susceptibility to noise induced hearing loss but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a sufficient time The U S Government s Occupational Safety and Health Administration OSHA has specified the following permissible noise level exposure Duration Per Day In Hours Sound
17. of operation of the power amp 14 In Stereo mode input signals from channel 1 and Channel 2 are present at this socket In Dual Mono mode only signals from Channel 1 are present In Bridge mode this connector should not be used Minimum impedance 2 Ohms CA MANDAL Laney explanation of terms CA3000 j 20 21 24 25 CD Channel 2 Clip Bridge Clipe Channel 4 3 Protect 30 e 9 Power 9 12 12 Laney Exch ee Pawwer Wa O me a 26 27 Le 30 31 32 eee 9 oO A Ja O mp4 C Ground Link kinten fel if uu Optional kon Pin Confie seme Channel 4 Dual Mono lo Chen 3 ll 3 Jack Pins XLR Pins YA 0 Min Load 2 Ohms L Power Consumption 1000 Watts Savoie Bridge Min Load Tip Hot Pint 01 Ring Cold Pin2 Hot fod Shield OV Pin3 Cold ip Dual Mone Bridge Channel 2 Dual Mono Limiter Channel 1 Stereo Brid Ong port i r ge Ind Lout Optional Ground Link Part 8P 5075 2 Channel 2 input gain Sets the level of the input signal to channel 2 The visual LED s give the user an indication of the signal level running through the pre amplifier The levels should be set as to minimize the level of clipping When the red LED is lit the signal i
18. of the input signal to channel 1 The visual LED s give the user an indication of the signal level running through the pre amplifier The levels should be set as to minimise the level of clipping When the red LED is lit the signal is approaching clipping and some degree of sound degradation may occur if the signal is clipped continuously Input level indicator channel 1 Indicates the level of signal running through channel 1 Input level indicator channel 2 Indicates the level of signal running through channel 2 CA MANDAL Laney OO OO 8 Power LED Indicates the unit is powered up Reset Button Should the unit be connected in error and experience a continuous overload situation such as connecting the unit to an incorrect supply voltage or should the amplifier experience a catastrophic component failure then the reset button will trip This will cause the unit to completely shut down and alll power to the amplifier will be removed Once the unit has tripped the reset button needs to be pushed in If the unit fails to reset itself immediately then the amplifier should be looked at by a qualified technician Consult your dealer Power Switch Disable mains power to the unit Protect This LED indicates that the output section of the CA amplifier has been run into extreme conditions such as too low an impedance at too high a level for too long a period In the situation that Protection is engaged the out
19. put section is automatically disconnected from the speakers and then shut down All the other functions of the amplifier continue to function as normal but the amplifier will produce no sound To reactivate the amplifier it must be switched off left for a few seconds and switched back on again via the main power switch 8a Speakon Connector amp 1 Used to connect an external speaker cabinet The signal present at this connection is dependent on the mode of operation of the power amp 14 In Stereo mode input signals from channel 1 and Channel 2 are present at this socket In Dual Mono mode only signals from Channel 1 are present In Bridge mode this connector should not be used Minimum impedance 2 Ohms Speakon Connector Bridge Used to connect an external speaker cabinet when running the power amplifier section in Bridged Mode 14 In Bridge mode only signals from Channel 1 are present Minimum impedance 4 Ohms XLR Input Channel 2 An XLR input option is provided for Channel 2 here Pin connections for the XLR connection are Pin 1 OV Pin 2 Hot and Pin 3 Cold Jack Socket Channel 2 A jack input option is provided for Channel 2 here Power amp mode switch This switch selects the mode of operation of the CA power amplifier section Three modes of operation are available Stereo Dual Mono and Bridge In Stereo mode the two onboard power amplifiers run independently supplying 300 watts CA600 750 watts RMS CA1500 of each channel input to ea
20. s approaching clipping and some degree of sound degradation may occur if the signal is clipped continuously Input level indicator channel 2 Indicates the level of signal running through channel 2 Bridge indicator This LED indicates that the amplifier channels 1 amp 2 are running in bridged mode 37 When running in bridged mode channel 1 s level control acts as the master level control Bridge indicator This LED indicates that the amplifier channels 3 amp 4 are running in bridged mode 37 When running in bridged mode channel 1 s level control acts as the master level control Input level indicator channel 4 Indicates the level of signal running through channel 4 Channel 4 input gain Sets the level of the input signal to channel 4 The visual LED s give the user an indication of the signal level running through the pre amplifier The levels should be set as to minimise the level of clipping When the red LED is lit the signal is approaching clipping and some degree of sound degradation may occur if the signal is clipped continuously Channel 1 input gain Sets the level of the input signal to channel 1 The visual LED s give the user an indication of the signal level running through the pre amplifier The levels should be set as to minimise the level of clipping When the red LED is lit the signal is approaching clipping and some degree of sound degradation may occur if the signal is clipped continuously CA MANDAL Laney Se
21. tie conductors together Eg Standard 1 4 jacks 4 Never use connectors that could accidentally be plugged into an AC power outlet 5 Avoid connectors with low current carrying capacity such as XLRs 6 Never use the 2 2 pins on the output speakon im unless you specifically need them Eg for biamping What gauge speaker wire should use in my system For the best speaker damping and least amount of power loss you will want to use the heaviest gauge that is practical The length of the speaker wire should be considered when considering wire gauge The shorter the run the smaller gauge you can use with minimum power and damping factor loss The longer the run the heavier gauge you will need to minimise power and damping factor loss You will also want to consider the size of power amplifier you are using The larger the amplifier the heavier gauge you will want to use For general use consider 2mm or above Can I run one channel of my CA Amplifier at a different impedance than the other channel Yes All CA amplifiers can be treated as if they are two separate mono amplifiers One channel completely independent of the other For example A CA1500 can function with a single 8 ohm speaker on channel one and two 8 ohm speakers on channel two Pin configuration Wiring a standard Neutrik NL4 Speakon For normal operation CA MANDAL SJaUUeYD INOJ Y HOOEVI 7IEUUEU abpiig Q qQoo aBuis o DIA Buldweig 10 7 jauUeYy
22. ut Channel 1 2 Bridge mode Channel 3 4 Stereo mode Ground Link Switch This switched is used to reduce unwanted interference such as multiple earth loops etc and does so by isolating the grounds of the input sockets only Limiter OPTIONAL Activates the onboard Limiter which prevents the output section being driven into clipping allowing the amplifier to be run at maximum output without experiencing unwanted distortion Jack Socket Channel 1 A jack input option is provided for Channel 1 here XLR Inout Channel 1 An XLR input option is provided for Channel 1 here Pin connections for the XLR connection are Pin 1 OV Pin 2 Hot and Pin 3 Cold CA MANDAL Laney 12 Speakon Connector Bridge Speakon connector for connecting external speaker The signal present at this connector is determined by the power amp mode setting 48 for this power amplifier The Bridge speakon connector should only be used when the power amplifier mode switch 48 is set to Bridge When in Bridge mode the signal present at the connector is derived from the input of Channel 3 Speakon Connector Amp 3 Speakon connector for connecting external speaker The signal present at this connector is determined by the power amp mode setting 38 for this power amplifier In Stereo Mode the signal present is derived from Channel 3 input In Dual Mono mode the signal present is derived from Channel 3 input but whatever signal is present at 33 is also avail
23. vels to be achieved This together with very low output impedance gives exceptional power delivery into bass bin enclosures 1 3 power is based on worst case severely compressed dance music 1 8 power is average for normal minimally compressed music material just clipping on peaks Total Harmonic Distortion All models typically less than 0 03 Across audio spectrum Intermodulation Distortion All Models typically less than 0 03 Input Sensitivity User selectable OdB 4dB and 26dB fixed Input Impedance 15K ohms minimum Damping Factor 8ohms Greater than 500 minimum with typical loudspeaker setups and cable Frequency Response Flat across the entire audio spectrum 20Hz 20Khz 0 5dBu 1dB down at 10Hz and 25KHz Hum and Noise Better than 95dB A Weighted Input Connectors One 1 4inch Jack socket and one 3pin XLR per channel Output Connectors One Speakon TM per output One speakon TM per Bridge output Size WxHxD mm Weight Kg CA600 483x88x320 CA1500 483x88x320 CA3000 483x88x435 Centre of gravity approx 160mm from front on all models Input Sensitivi Before starting Unplug all leads to the amplifier Make sure mains supply is removed and switched off Remove all screws from top cover place to one side Locate the input pcb that requires the gain changing Model shown pcb 9339 no VCA limiter Locate HD6 and HD1 Swap the jumper link as required Refit cover t 3
24. work at frequencies of around 200kHz The CA runs at varying rates depending on the input signal from 600kHz to 1 2Mhz This has many benefits both to efficiency and sonic performance The heart of the design uses thick film technology for high reliability and consistency The power supply is a conventional massive oversized toroidal design avoiding the problems of instant transient power delivery and unreliability associated with many switch mode designs Due to the very high efficiency typically 85 90 noisy unreliable fans are eliminated in favor of an aluminium chassis and side mounted heat sink extrusions The amplifier has the unique ability to look like a near perfect audio modulated power supply This gives big advantages when driving difficult loads where impedance s vary over the frequency spectrum the CA amplifier is unaffected and drives the loads much more perfectly giving a dramatically improved performance to many speaker systems The amplifiers also contain microprocessor controlled soft clipping and user switchable limiter circuitry Factory fitted option only together with VCA control Part Number LMT3000 Speakon TM connectors are used for the outputs and a combination of electronically balanced XLR Jack inputs The input gain is internally selectable by jumper links from 4dBu to Odbu or to 26dB gain See later for description There are also input level controls on the fascia panel to attenuate down from the preset leve
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