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Appendix A: 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 bridge mode output!

Summary of Contents for PLX 1802

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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Page 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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