Operating Instructions
Contents
1. EPX 2200 01 Clip LEDs These LEDs flash red to indicate when the 03 Power LED This LED illuminates when the amplifier output of the amplifier has reached the maximum and is is switched on right on the edge of clipping Clipping is bad for speakers 94 Protect LED If this LED is illuminated during operation and should be avoided It is okay if the LED blinks one of the protection circuits is active Please take the occasionally It means that the transient peaks of the amplifier out of operation and have it tested music are just hitting the full output of the amplifier aves oes qun TRASH AS 05 Stereo LED This illuminates in stereo mode Gain control These two knobs control the levels o T POERI Channels 1 and 2 Usually these controls are set all the Ba an vhs MISES n PRASRA made way up You might turn them down slightly if you have 07 Parallel LED This LED illuminates in parallel mode high efficiency speakers Also you could use them to O8 Power switch Press this switch to start the operation control the level of line level sources such as a CD player connected directly to the amplifier without a pre amplifier or mixer After you have set the levels for the mixer or other signal source adjust the Level controls on the amplifier as the final adjustment to set the overall volume for the system In stereo and mono mode use both level controls to control the levels going to each speaker In bridged mode t2. 240V is supplied and that the ground cable is earthed This product falls under Class 1 Do not detach the ground cable www prolight co uk EPX Series Power Amplifiers User Manual 8 audio Operating instructions Operation After having connected your amplifier to the mains turn both gain controls counter clockwise to the min position The last product to be switched on is amplifier The ON and PROTECT LED lights up now If it does not check if the amplifier is connected to the mains correctly After the turn on delay the speakers are activated PROTECT LED is off After having set the volume controls of the pre amplifier to the OFF position turn the gain controls of your amplifier to mid position Now adjust the volume with the gain controls CH A and CH B All important operating modes of the amplifier are arranged on the front panel 20 dB to 30dB Output level Clip Short circuit or impedance too low or signal distorted Protect Active during stabilisation period after switching on or when one of the protective circuits is activated If you want to switch off the system switch off the amplifier first in order to avoid acoustic shocks on the speakers Problem Chart Problem cause Solution o No sound not connected correctly or not at all connected with the sockets Fan does not work LEDs do not light up The power cable is not connected Connect the power cable Switch amplifier off
3. AY AY ANY AY AY ANY ANY AY AY ANY ANY AY ANY ANY ANY AY ANY A o o E L i oF 0D 481mm EPX 2200 dimensions oL ES E E dre od SI N Tt 426mm Co VAVAVAVAVAVAVAVAVAVAVAVAVAVAVAVAV AV AAA AAA AAA A AAA oO OOO ERE E ERE E EE eee oe eee eee SODA ININININININININININININININININININININININININININININININININININININININIIN A E ooo E L ceo oc 481mm www prolight co uk EPX Series Power Amplifiers User Manual 4 No audio EPX 300 EPX 500 amp EPX 800 front panel Technical specifications 01 Clip LEDs These LEDs flash red to indicate when the output of the amplifier has reached the maximum and is right on the edge of clipping Clipping is bad for speakers for the mixer or other signal source adjust the level controls on the amplifier as the final adjustment to set the overall volume for the system and should be avoided It is okay if the LED blinks occasionally It means that the transient peaks of the music are just hitting the full output of the amplifier O2 Gain control These two knobs control the levels of Channels 1 and 2 Usually these controls are set all the way up You might turn them down slightly if you have high efficiency speakers Also you could use them to control the level of line level sources such as a CD player connected directly to the amplifier without a pre amplifier or mixer After you have set the levels In stereo and mono mode use both level contro
4. Was EPX Series Power Amplifiers User Manual Order codes AMP24 EPX 300 AMP25 EPX 500 AMP26 EPX 800 AMP27 EPX 1200 AMP28 EPX 2200 audio Safety advice WARNING FOR YOUR OWN SAFETY PLEASE READ THIS USER MANUAL CAREFULLY BEFORE YOUR INITIAL START UP Immediately upon receiving this product carefully unpack the carton and check the contents to ensure that all the parts are present Before initial start up please make sure that there is no damage caused during transportation Should there be any damage consult your dealer and do not use the equipment Retain the carton and all packaging materials In the event that the equipment must be returned to the supplier it is important that the equipment is returned in the original carton and packaging To maintain the equipment in good working condition and to ensure safe operation it is necessary for the user to follow the safety instructions and warning notes written in this manual Please note that damages caused by user modifications to this equipment are not subject to warranty KEEP THIS EQUIPMENT TAKE CARE USING AWAY FROM MOISTURE THIS EQUIPMENT RAIN AND LIQUIDS AND OUT OF DAMP HUMID ENVIRONMENTS HIGH VOLTAGE RISK OF ELECTRIC SHOCK IMPORTANT The manufacturer will not accept liability for any resulting damages caused by the non observance of this manual or any unauthorised modification to the equipment Never let the power cable come in
5. and have the product checked DC voltage on input ae by a service technician Protect LED lights Amplifier overheats due to obstruction Clean the fan grill up permanently Impedance of speakers too low Ensure minimum 40 load Short circuit in speaker connection Check speakers and connections or in speakers www prolight co uk EPX Series Power Amplifiers User Manual 9 audio Operating instructions CAUTION DANGER TO LIFE DISCONNECT FROM THE MAINS BEFORE STARTING MAINTENANCE OPERATION Cleaning and Maintenance We recommend a frequent cleaning of the product Please use a soft lint free and moistened cloth Never use alcohol or solvents There are no serviceable parts inside the product except for the fuse Maintenance and service operations are only to be carried out by authorised dealers Replacing the fuse Only replace the fuse with a fuse of the same type and rating Before replacing the fuse unplug the mains cable Procedure Step 1 Open fuse holder on the rear panel with a screwdriver Step 2 Remove the old fuse from the fuse holder Step 3 Install the new fuse in the fuse holder Step 4 Replace the fuse holder in the housing Should you need any spare parts please use genuine parts Should you have any further questions please contact your dealer www prolight co uk EPX Series Power Amplifiers User Manual 10 audio WEEE notice Correct Disposal of this Product Waste Electrical amp Electronic Equ
6. arried out by a qualified technician THIS UNIT CONTAINS is between 220V 240V NO USER SERVICEABLE PARTS WARRANTY One year from date of purchase OPERATING DETERMINATIONS If this equipment is operated in any other way than those described in this manual the product may suffer damage and the warranty becomes void Incorrect operation may lead to danger e g short circuit burns and electric shocks etc In case of malfunction this unit should be returned for service or inspection Do not endanger your own safety and the safety of others Incorrect installation or use can cause serious damage to people and or property www prolight co uk EPX Series Power Amplifiers User Manual 2 Product overview Q0 audio EPX Series Power Amplifiers A professional range of power amplifiers offering superior reliability and performance with a full range of power options available to suit a variety of applications Short circuit overload and thermal protection Fan cooled Ground lift In the box 1 x power amplifier 1 x power cable N Y si Was EPx1200 amp 1 x user manual Was Specifications EPX 300 EPX 500 EPX 800 EPX 1200 EPX 2200 Stereo 80 2x90W 2x180W 2x270W 2x400W 2x850W Output power 1kHz THD N lt 0 5 Stereo 40 2 x 150W 2 x 250W 2 x 400W 2x600W 2 x 1100W Bridge 80 1200W 2200W Frequency response 20Hz to 20kHz 1 0dB Input sensitivity O 7 75V 1 0V 1 44V S N ratio a weighted RM gt B N ra
7. gain for each channel Bridge This mode accepts a single input into channel 1 and uses both amplifier outputs to double the power to one speaker output Use channel 1 level control to adjust the gain Turn channel 2 level control to minimum Technical specifications 06 When engaged the limiter switch protects your speakers from the effects of clipping It is designed to be virtually transparent and you should hear very little audible difference It is recommended that you always have this switch active unless you are using external compressor limiters 07 Ground lift switch This switch allows the signal ground or chassis ground to be separated in case of a ground conflict For the highest safety of the equipment it is recommended to keep the ground lift switch in the GND position In case of a ground conflict please set the ground lift switch to GND LIFT O8 These balanced XLR outputs can be used to loop through the signal to additional power amplifiers 09 Crossover For normal operation set the mode switch to Bypass Low High Pass Mode When using the Low High Pass Mode the amplifier can be configured for High Pass or Low Pass operation EPX Series Power Amplifiers User Manual 7 audio Operating instructions Rack installation The EP Series is built for 19 racks The rack you use should be a double door rack where you can open the front and rear panel When mounting the amplifier into the rack
8. ipment Applicable in the European Union and other European countries SS with separate collection systems This marking shown on the product or its literature indicates that it should not be disposed of with other household wastes at the end of its working life To prevent possible harm to the environment or human health from uncontrolled waste disposal please separate this from other types of wastes and recycle it responsibly to promote the sustainable reuse of material resources Household users should contact either the retailer where they purchased this product or their local government office for details of where and how they can take this item for environmentally safe recycling Business users should contact their supplier and check the terms and conditions of the purchase contract This product should not be mixed with other commercial wastes for disposal CE www prolight co uk EPX Series Power Amplifiers User Manual 11 audio www prolight co uk EPX Series Power Amplifiers User Manual 12
9. ls to control the levels going to each speaker 03 Power LED This LED illuminates when the amplifier is switched on 04 Protect LED If this LED is illuminated during operation one of the protection circuits is active Please take the amplifier out of operation and have it tested O5 Power switch Press this switch to start the operation EPX 300 EPX 500 amp EPX 800 rear panel EPX 300 Wae d amp Xx MAINS INPUTS ame 01 jack inputs These inputs allow you to connect Y4 unbalanced jack plugs 02 Phono inputs These inputs allow you to connect unbalanced phono plugs 03 There are three ways of connecting your speakers Locking speaker connectors 1 4 jack or binding posts The connectors are wired in parallel e g Channel 1 binding post jack and locking speaker connectors are in parallel and the same for channel 2 04 Power cable socket This is where you connect the detachable power cable Connect the other end to a 240V AC outlet 05 Ground lift switch This switch allows the signal ground or chassis ground to be separated in case of a ground conflict For the highest safety of the equipment it is recommended to keep the ground lift switch in the GND position In case of a ground conflict please set the ground lift switch to GND LIFT www prolight co uk EPX Series Power Amplifiers User Manual 5 audio Technical specifications EPX 1200 amp EPX 2200 front panel
10. please make sure that there is enough space around the amplifier Be careful when mounting the amplifier into the rack Put the heaviest products into the lower part of the rack Be aware that fastening the amplifier with four screws on the front panel is not enough If the racks are being transported or used for mobile use additionally fasten the products by connecting the rear brackets with the side or ground bars of the rack In this way the amplifier cannot be pushed backwards The front panel is not designed to absorb acceleration forces occuring during transportation Inputs Short cables runs improve the sound quality remarkably Input cables should be short and direct since high frequencies will mostly be absorbed if the cables are unnecessarily long Besides that a longer cable may lead to humming and noise problems If the cable runs are unavoidable you should use balanced cables Outputs The high damping factor of your amplifier supplies a clear sound reproduction Unnecessarily long and thin cables will influence the damping factor and thus the low frequencies in a negative way In order to safeguard good sound quality the damping factor should lie around 50 The longer a cable has to be the thicker it should be Connect your speaker systems via the locking speaker connectors or the Bannana Screw combination red black Connection to the mains Connect the amplifier only after having made sure that the correct voltage
11. tio a weighted S 95d gt 100dB Crosstalk at rated power output a 80 at 1kHz gt 55dB gt 65dB 70dB Damping factor f 1kHz 80 gt 60 gt 150dB gt 200 Protection circuits LED indicators Connectors Cooling system Soft start limit thermal short circuit overload DC fault protection amp AC power supply fuse Thermal short circuit overload DC fault protection amp AC power supply fuse Power protect amp clip Power protect clip stereo parallel amp bridge Inputs 2 x XLR sockets 2 x 1 4 jack sockets Outputs 2 x locking speaker connectors 2 x binding posts 1 x locking speaker bridge connector Inputs 2 x phono sockets 2 x 1 4 jack sockets Outputs 2 x locking speaker connectors 2 x binding posts Low noise cooling fans variable speed fan Power supply AC240V 50Hz Dimensions H x W x D 87 x 481 x 297mm 87 x 481 x 297mm 87 x 481 x 297mm 87 x 481 x 450mm 87 x 481 x 450mm Weight 9 5kg 10kg 10 5kg 18kg 21kg Order code AMP24 AMP25 AMP26 AMP27 AMP28 www prolight co uk EPX Series Power Amplifiers User Manual 3 0 Pr verview audid oduct overvie EPX 800 dimensions E EE o t N O N l 426mm Co Oe ae a CO EE oO KV AY AV AY AY AY AV AY ANY AY AY ANY ANY AY AY ANY ANY ANY ANY ANY ANY ANY ANY ANY ANY ANY ANY ANY ANY ANY IANY ANY ANY ANY IANY ANY ANY ANY IANY AN YA PAY AY AV AY AY AY AY A YA AY AY A YA AY AN AY AY AY AY AY ANY AY
12. to contact with other Make sure that the power cable is never crimped cables Handle the power cable and all mains voltage or damaged Check the equipment and the power connections with caution cable periodically Never remove warning or informative labels from the f the equipment is dropped or damaged disconnect equipment the mains power supply immediately Have a qualified Do not open or modify the equipment engineer inspect the equipment before operating again If the equipment has been exposed to drastic temperature fluctuation e g after transportation do not switch it on immediately The arising condensation might damage the equipment Leave the equipment switched off until it has reached room temperature Do not connect this equipment to a dimmer pack Do not switch the equipment on and off in short intervals as this will reduce the system s life Only use the equipment indoors Do not expose to flammable sources liquids or gases If the product fails to function correctly discontinue use Always disconnect the power from the mains when immediately Pack securely preferably in the original equipment is not in use or before cleaning Only handle packing material and return to your dealer for service the power cable by the plug Never pull out the plug by Only use fuses of same type and rating puling thepower m Repairs servicing and power connection must only be Make sure that the available voltage c
13. urn the channel 2 level control down and just use the channel 1 control www prolight co uk EPX Series Power Amplifiers User Manual 6 www prolight co uk Q0 audio PX 1200 amp EPX 2200 rear panel EPX 2200 01 XLR inputs These inputs allow you to connect balanced XLR plugs These are wired with pin 2 hot pin 3 cold and pin 1 ground 02 1 4 jack inputs These inputs allow you to connect 14 unbalanced jack plugs 03 There are two ways of connecting your speakers Locking speaker connectors or binding posts The connectors are wired in parallel e g Channel 1 binding post and locking speaker connectors are in parallel and the same for channel 2 When the amplifier is used in bridged mono mode use either the output bridged locking speaker connectors or the two red binding posts O4 Locking power socket This is where you connect the detachable locking power cable Connect the other end to a 240V AC outlet 05 Amp mode This switch determines the input signal routing within the amplifier For most applications stereo will be used Stereo This is the normal mode for amplifying stereo signals It accepts left and right inputs and routes them to the left and right outputs Parallel This mode is used when you want to send mono signals to both outputs It accepts a single input into channel 1 and routes it to both the channel 1 and channel 2 outputs Each channels level control adjusts the
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