P L A 4 1 7 0 P L A 4 2 7 0

f e a t u r e s a n d c o n t r o l s

4 c h a m p P L A 4 1 7 0 . P L A 4 2 7 0

protection LED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

power LED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ch 3/4 high level inputs

ch 3/4 low level inputs ch 3/4 input level control ch 3/4 crossover mode selector switch

ch 3/4 bass boost level control ch 3/4 low pass frequency control ch 3/4 high pass frequency control

ch 3/4 remote bass boost (PLA4170 without)

ch 1/2 high level inputs

12

ch 1/2 low level inputs ch 1/2 input level control

ch 1/2 crossover mode selector switch ch 1/2 bass boost level control

ch 1/2 low pass frequency control ch 1/2 high pass frequency control

power fuse

f e a t u r e s

4 c h

crossover mode selector when used with normal, full range systems, set this switch to “FULL.” If you wish to use the internal crossover to power a driver of specific frequency range, use the “LOWPASS” or “HIGHPASS” settings.

input level control use this control 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 control until distortion begins to occur, and reduce slightly from this point.

low pass frequency control when the crossover selector switch is in “low pass” mode, this control sets the upper frequency limit for audio program sent to the speakers.

high pass frequency control when the crossover selector switch is in “high pass” mode, this control sets the lower frequency limit for audio program sent to the speakers.

Remote Bass Boost Plug in the Remote Bass Boost Control wire in here.

bass boost level control this control permits adjustment of the bass level up to an increase of approximately 18 dB.

low level inputs this amp features gold-plated RCA input jacks for high impedance input. Use these with car stereo output which uses RCA-type connector cables.

high level inputs if your car stereo lacks RCA-type output jacks, you may connect speaker output leads to these input connectors.

power LED this indicator is illuminated when power is applied.

protection LED this indicator is illuminated when built-in protection circuitry is activated.

power fuse the fuse protects the amplifier and your car’s electrical system from short circuit conditions.

power terminals use these connectors to deliver power, ground and remote turn-on control to the amplifier.

speaker connections these terminals are 14K gold plated to guarantee high conductivity and minimum signal loss.

speaker connections

power terminals

a n d s p e c i f i c a t i o n s

a m p P L A 4 1 7 0 . P L A 4 2P 7L0A 4 1 7 0

P L A 4 2 7 0

 

4 channel amplifier

4 channel amplifier

output power @ 14.4v DC, 1KHz

 

 

RMS Power @ 4 Ohms

35 Watts x 4

75 Watts x 4

RMS Power @ 2 Ohms

50 Watts x 4

110 Watts x 4

Maximum Power Output

250 Watts x 4

400 Watts x 4

frequency response

15 Hz-30 KHz

 

input impedance

 

 

low level inputs

10K Ohms

 

high level inputs

100 Ohms

13

input sensitivity

 

 

 

low level inputs

250mV

 

high level inputs

2.5V

 

power supply voltage

14.4V DC Neg. Ground (10.5-16V)

 

matching speaker impedance

 

 

stereo mode

2-4 Ohms

 

bridged mode

4-8 Ohms

 

maximum current draw

30A

40A

dimensions (W x H x L)

 

 

mm

292 x 60 x 305

292 x 60 x 432

inches

11.5 x 2.34 x 12

11.5 x 2.34 x 17

Page 7
Image 7
Radio Shack P L A 2 1 7 0 warranty H a m p P L a 4 1 7 0 . P L a 4 2 7, Ch 1/2 high level inputs