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3

Introduction

Thank you for purchasing this QSC power amplifier. Please read the following directions to obtain the best results. This manual covers all 
models of the PLX series. Illustrations show the PLX 1804 to be representative of the PLX 1104 and 1804 models, while the PLX 3602  illus-
tration is representative of the PLX 1802, PLX 2502, PLX 3102, and PLX 3602 models.

The PLX 1104 and PLX 1804 models feature:

•4-ohm minimum impedance
•Speakon loudspeaker connections
•QSC PowerLight high-performance, compact, and light weight switching power supply
•Complete amplifier protection
•XLR and 1/4-inch TRS balanced input connectors
•Gain controls are recessed and 21-step detented
•Active inrush current limiting eliminates need for power sequencing
•LED indicators for power, input signal presence, -10 dB, and clip/protect
•Rear chassis tabs and front panel design protect controls and connectors

In addition, the PLX 1802, PLX 2502, PLX 3102, and PLX 3602 models feature:

•2-ohm minimum impedance
•Bridgeable output
•Binding post loudspeaker connections
•Clip limiter 
•33 Hz low frequency filter
•Low-cut/full-range/high-cut selector 
•Stereo/bridge mode/parallel input selector
•Front panel LED indicators for parallel and bridge modes

Unpacking

Factory packed carton contains:

•PLX amplifier
•User's manual
•Adhesive rubber feet (for non-rack mount applications)
•IEC-type detachable power cord

Use the same type carton when shipping the amplifier.

Front Panel

1- Power Switch
2- Cooling Air Exhaust Vents

3- LED Indicators
4- Gain Controls

Содержание PLX 1802

Страница 1: ...fiers User Manual 4 ohm minimum impedance models with Speakon output terminals PLX 1104 PLX 1804 2 ohm minimum impedance models with Speakon and binding post terminals PLX 1802 PLX 2502 PLX 3102 PLX 3...

Страница 2: ...er to the risk of hazardous energy Output connectors that could pose a risk are marked with the lightning flash Do not touch output terminals while amplifier power is on Make all connections with ampl...

Страница 3: ...d 21 step detented Active inrush current limiting eliminates need for power sequencing LED indicators for power input signal presence 10 dB and clip protect Rear chassis tabs and front panel design pr...

Страница 4: ...om QSC s Technical Services Group The cast front panel includes finger grips at each end mak ing lifting and setting into the rack more comfortable 1 Input Configuration switch 2 1 4 inch TRS input co...

Страница 5: ...Draw The table at the right provides typical current draw for each model as a function of load and output power level Units of measurement are amperes rms NOTE Current draw shown is for 120 VAC line F...

Страница 6: ...the clip limiter Low Frequency Filters PLX 1802 2502 3102 3602 models only Each channel has independent filter selection of Full Range infrasonic filter only 33 Hz low cut 100 Hz low cut or 100 Hz Hi...

Страница 7: ...The signal s source impedance should be less than 600 ohms Input Pinouts Balanced inputs Connect to the plug as shown XLR TRS Unbalanced inputs Connect to the plug as shown If using an XLR connector...

Страница 8: ...tput connection Bridge mode configures the channel pair to drive a single high power loudspeaker load The INPUT CONFIGURATION switch must be set for BRIDGE mode Use only Channel 1 s input and Gain con...

Страница 9: ...for damaged speakers or overloaded signal source The amplifier Gain control should be in the upper half of its range to prevent input overload SIGNAL SIG 10 GREEN Normal indication The SIG signal indi...

Страница 10: ...reduced levels At the minimum setting the signal is completely cut off Note The GAIN controls do not adjust the power of the amplifier They adjust its sensi tivity to input signals Gain controls and...

Страница 11: ...riven too hard into loads less than the rated 4 ohm minimum If the amplifier overheats due to prolonged overload or high external temperature it will mute for about 30 seconds with the fan running at...

Страница 12: ...ack to front air flow through heat sink array CONTROLS Front AC POWER switch Gain controls each channel 21 detents Back AC circuit breaker LED INDICATORS POWER blue SIGNAL green x 2 10 dB green x 2 CL...

Страница 13: ...o reactive or mismatched loads COOLING Continuously variable speed fan back to front air flow through heat sink array CONTROLS Front AC POWER switch Gain controls each channel 21 detents Back Input Co...

Страница 14: ...Speakon Wiring Reference Amplifier connection To loudspeaker Two wire single channel connection Four wire two channel connection Bridge mode connection NOTE Ensure proper polarity when connecting brid...

Страница 15: ......

Страница 16: ...taktinformationen f r QSC Audio Products QSC Audio Products Mailing address QSC Audio Products Inc 1675 MacArthur Boulevard Costa Mesa CA 92626 1468 USA Telephone Numbers Main Number 714 754 6175 Sale...

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