Power series amplifiers p-4020, p-4040 owner ’s manual g e n u i n e j b l p-4020/4040 om. 7/14/98 11:42 am page 1.
2 amplifier features • 4-, 3- or 2-channel operation (p-4040) 2- or 1-channel operation (p-4020) • simultaneous stereo and mono operation • built-in 12db/oct electronic crossover • balanced differential input • pre-amp outputs (filtered on p-4040) • oversized floating rail mosfet power supply • univ...
3 • always wear protective eyewear when using tools. • when routing cables, keep input signal cables away from power cables and speaker wires. • when making connections, make sure that each connection is clean, insulated and properly secured. Observe the polarity markings on the rear panel. Refer to...
4 mounting the amplifier the jbl p-4020 (or p-4040) can be mounted in virtually any location inside the vehicle. However, make sure to keep the amplifier away from heater vents or ducts. 1. At the chosen site, use the amplifier as a mounting template and mark the locations of the four mounting holes...
5 4. In some systems it may be desirable to have two sources play simultane- ously through the audio system. For instance, if you have a factory-installed radio in your car and you want to add an aftermarket cd player, you may connect the cd player to the rca inputs of the amp and the factory radio ...
F u s e 3 0 a b r i d g e – r + – l + made in the u.S.A. +batt rem gnd bridge speaker outputs power front rear 30 6 20 – r + – l + +batt rem gnd bridge speaker outputs power fuse 20a made in the u.S.A. F u s e 3 0 a b r i d g e – r + – l + made in the u.S.A. +batt rem gnd bridge speaker outputs powe...
7 symptom likely cause solution no audio low/no remote on voltage check connections; turn-test turn-on voltage speakers are not connected or are blown check wiring; use vom/dvm to measure speaker-coil resistance distorted audio input sensitivity is not set properly see setting input sensitivity on p...
Jbl consumer products 250 crossways park drive woodbury, ny 11797 part no. Sh1122 made in usa specifications jbl p-4020 jbl p-4040 power output, 4 ohms: 2 x 40 watts 4 x 40 watts power output, 2 ohms: 2 x 50 watts 4 x 50 watts power output, bridged 4 ohms: 100 watts 100 watts x 2 frequency response:...
