features and specifications
4 ch amp PLA-4150 • PLA-4250 • PLA-4350
dual crossover mode selectors
dual input level controls
dual low pass frequency controls
dual high pass frequency controls
CH 3/4 Remote Bass Boost dual bass boost level controls
low level inputs
high level inputs
power LED
when used with normal, full range systems, set these switches to “FULL.” If you wish to use the internal crossovers to power a driver of specific frequency range, use the “LOWPASS” or “HIGHPASS” settings.
use these controls to match the outputs of your head unit to the amplifier. Starting with your head unit set at about the 2 o’clock position, increase the amp level controls until distortion begins to occur, and reduce slightly from this point.
when one or both of the crossover selector switches is in “low pass” mode, one can set the upper frequency limit for audio program sent to the speakers.
when the one or both of crossover selector switch is in “high pass” mode, one can set the lower frequency limit for audio program sent to the speakers.
Plug in the Remote Bass Boost Control wire in
this control permits adjustment of the bass level up to an increase of approximately 18 dB in either or both pairs of channels.
this amp features
if your car stereo lacks
this indicator is illuminated when power is applied.
output power @ 14.4v DC, 1KHz |
RMS Power @ 4 Ohms | 35 Watts x 4 | 50 Watts x 4 | 75 Watts x 4 | ||||
RMS Power @ 2 Ohms | 55 Watts x 4 | 75 Watts x 4 | 115 Watts x 4 | ||||
Maximum Power Output | 250 Watts x 4 | 350 Watts x 4 | 500 Watts x 4 | ||||
frequency response |
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input impedance |
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low level inputs |
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| 10K Ohms |
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high level inputs |
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| 100 Ohms |
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input sensitivity |
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low level inputs |
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| 250mV |
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high level inputs |
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| 2.5V |
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power supply voltage |
| 14.4V DC Neg. Ground |
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matching speaker impedance |
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stereo mode |
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bridged mode |
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maximum current draw | 20 A | 30 A | 20 A x 2 | ||||
dimensions (W x H x L) |
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protection LED power fuse
power terminals
speaker connections
this indicator is illuminated when
the fuse protects the amplifier and your car’s electrical system from short circuit conditions.
use these connectors to deliver power, ground and remote
these terminals are 14K gold plated to guarantee high conductivity and minimum signal loss.
mm | 281 x 59 x 305 | 281 x 59 x 381 | 281 x 59 x 432 |
inches | 11.06 x 2.32 x 12 | 11.06 x 2.32 x 15 | 11.06 x 2.32 x 17 |