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1. Indicator LEDs -  
Channel Protect Indicator -
 The yellow Protect LED will begin to glow 

when the channel goes into protect mode. When the channel goes into 

protect mode all output for that channel will turn off. This is to protect any 

speakers connected to the channel.
Channel Clip Indicator - This red LED will begin to flash when channel 

one begins to overload (clip). At this point channel one will begin to dis-

tort. Under heavy clipping activity lower the channel one gain control to 

reduce the risk of damage to your speakers and amplifier. This LED may 

glow when the unit has been turned off, this is normal.
Channel Signal Indicators - These green LED’s will glow according to 

the average signal output.
Active Indicators -  These  green  LED’s  will  glow  when  the  amp  is 

switched on.
2. Power Switch - This switch is used to control the units main power. 

NOTE: The amp must always be turned on last in a audio set up, and 

turned off first in a audio set up. Before powering on or down the amp, 

turn the gain controls to the lowest position.
3. Channel B Gain Control - This rotary knob is used to control the 

output signal of channel two. Turning the knob in a clockwise direction 

will increase signal output. Before powering down the amp, turn the gain 

control to the lowest position.

©American Audio®  -  www.americanaudio.us  -  ELX Series Power Amplifier User Manual  Page 5

Front Panel

4. Channel A Gain Control - This rotary knob is used to control the out-

put signal of channel one. Turning the knob in a clockwise direction will 

increase signal output. This gain control is also used when the amp is in 

Bridge Mode. Before powering down the amp, turn the gain control to 

the lowest position.
5. Air Inlet - These air inlets draw in air from the outside to help cool 

down the amp as it is running. Do not place anything in front or obstruct 

these inlets. Keep these air inlets clean for max air flow.

Figure 1

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3

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Summary of Contents for ELX 2000

Page 1: ...User Instructions Professional Power Amplifier ELX Series 2 13 ...

Page 2: ...upplémentaries situés dans le guide Este símbolo tiene el propósito de alertar al usuario de la presencia de voltaje peligroso que no tiene aislamiento dentro de la caja del producto que puede tener una magnitud suficiente como para constituir riesgo de corrientazo Este símbolo tiene el propósito de alertar al usuario de la presencia de instrucciones importantes sobre la operación y mantenimiento ...

Page 3: ...of non insulated dangerous volt age within the products enclosure and may be of sufficient magnitude to consti tute a risk of electric shock The exclamation point triangular symbol is intended to alert the user to the presence of important operating and maintenance servicing instructions in the user manual accompanying the amplifier POUR ASSURER L A FIABILE TE E T OBTENIT UNE PERFORMANCE OPTIMALE ...

Page 4: ...oduction Congratulations and thank you for purchasing this American Audio ELX Series amplifier This amplifier is a represen tation of American Audio s continuing commitment to produce the highest quality products at an affordable price Please read and understand this manual completely before attempting to operate your new amplifier This booklet contains important information concerning the proper ...

Page 5: ...r NOTE The amp must always be turned on last in a audio set up and turned off first in a audio set up Before powering on or down the amp turn the gain controls to the lowest position 3 Channel B Gain Control This rotary knob is used to control the output signal of channel two Turning the knob in a clockwise direction will increase signal output Before powering down the amp turn the gain control to...

Page 6: ...r fluctuations Always be sure to replace the fuse with an exact match as the one being replaced unless otherwise told to do so by an authorized Ameri can Audio service technician 11 Channel A B XLR Inputs Channel A B 3 pin XLR balanced input jack See page 7 for more details Channel A B XLR THRU Inputs These inputs are parallel outputs of the inputs used to link multiple amps 12 Ground Lift Switch ...

Page 7: ...g the negative lead into the black terminal and positive lead into the red terminal Ensuring proper polarity will avoid speakers being out of phase that can cause a loss of bass response Set Up INPUTS The ELX Series amplifier allows you to use two types of input connector per a channel a XLR jack for balanced connections and a 1 4 female jack that will accept balanced and unbalanced connectors Use...

Page 8: ...are ready to use the Speakon connection With Speakon connectors you can connect straight from the amplifier to the speaker The Speakon connector used on this amplifier meets all known safety regulations Once wired correctly the connector cannot be plugged in backwards causing the type of inverted polarity situations that have become common with banana hookups This connection will provide a safe se...

Page 9: ... wire See Figure 8 5 Slide the connector insert B into the connector housing A making sure that the large notch on the outer edge of the insert lines up with the large groove on the inside of the connector housing The insert should slide easily through the housing and out the other side until it extends approximately 3 4 inch from the end of the housing 6 Slide the cable tension clip D along the c...

Page 10: ...ulate the output volume Be sure not to raise the volume to the clip level however an intermittent clip signal is acceptable Mono Bridge Operation Page 13 Figure 10 details a mono bridge set up Be sure your amplifier and all other audio equipment is powered down Flip the Stereo Parallel Bridge switch to the Bridge position Connect an input signal to channel one Connect your speaker across the red o...

Page 11: ...When the input signal decreases enough that clipping ends the limiter will deactivate and cease its gain reduction The limiter has a fixed threshold and can not be adjusted NOTE If input signal is clipping or exceeds linear ity working range of input circuit then the Clip Limiter will not work Short Circuit Protection The ELX Series amplifiers all come with built in Short Circuit Protection If a s...

Page 12: ...in voltage is listed above the Power Cord input Connecting to the wrong voltage is dangerous and may damage the amplifier GAIN CONTROLS The gain controls are located on the front panel and are calibrated in 2dB of attenuation from full gain It is best to adjust the amplifier so no hissing is heard from speakers with no music being played this will ensure the lowest possible distortion during norma...

Page 13: ...MONO BRIDGE SET UP SPEAKERS 8 OHM MINIMUM TYPICAL STEREO OUTPUT CONNECTIONS SPEAKERS 4 OHM MINIMUM SPEAKERS 4 OHM MINIMUM Use Channel 1 Input Only X Use Speakon Connections Use the two positive binding post termainals red for speaker output Figure 10 Figure 9 Set the Operation Mode switch to Bridge BTL ...

Page 14: ...n cludes after inspection affects the reliability of the product if the product has been repaired or serviced by anyone other than the American Audio factory unless prior written authorization was issued to purchaser by American Audio if the product is damaged because not properly maintained as set forth in the instruction manual D This is not a service contract and this warranty does not include ...

Page 15: ... American Audio www americanaudio us ELX Series Power Amplifier User Manual Page 15 NOTES ...

Page 16: ...z 1 THD 2 x 150W RMS per Channel 4 Ohms 1kHz 1 THD 2 x 250W RMS per Channel 4 Ohms 1kHz 1 THD 300W RMS 8 Ohms 1kHz 1 THD 500W RMS 8 Ohms 1kHz 1 THD Bridge Mode Mono Bridge Mode Mono Total Harmonic Less Then 0 1 20Hz 20kHZ 8 Ohms Less Then 0 1 20Hz 20kHZ 8 Ohms Distortion THD Frequency 20Hz to 20KHz 1 0dB 20Hz to 20KHz 1 0dB Response Damping Factor 60 60 f 1 KHz at 8 Ω Slew Rate 20V per usec 20V pe...

Page 17: ...pore AC 240V 50Hz Australia and U K MODEL ELX 4000 Output Power 2 x 260W RMS per Channel 8 Ohms 1KHz 1 THD 2 x 400W RMS per Channel 4 Ohms 1kHz 1 THD 800W RMS 8 Ohms 1kHz 1 THD Bridge Mode Mono Total Harmonic Less Then 0 1 20Hz 20kHZ 8 Ohms Distortion THD Frequency 20Hz to 20KHz 1 0dB Response Damping Factor 150 f 1 KHz at 8 Ω Slew Rate 20V per usec Impedance 20K Ohms Balanced S N Ratio 95dB Cross...

Page 18: ...e Los Angeles CA 90040 USA Tel 323 582 3322 Fax 323 725 6100 Web www AmericanAudio us E mail info americanaudio us American DJ Europe Junostraat 2 6468 EW Kerkrade Netherlands service adjgroup eu www americandj eu Tel 31 45 546 85 00 Fax 31 45 546 85 99 ...

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