Pyramid Car Audio PB744, PB1644 features and specifications 4ch amp PB844, speaker connections

features and specifications 4ch amp PB844

crossover mode selector

low pass frequency control

high pass frequency control

input level control

PB844

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

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

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

use this control to match the outputs of you 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.

output power@14.4v DC, 1KHz
RMS Power @ 4 ohms	75Watts	4
RMS Power @ 2 ohms	180Watts	4
Maximum Power Output	250Watts	4
frequency response	10Hz-70KHz
input impedance
low level inputs	10K Ohms
high level inputs	100 Ohms

input sensitivity

low level inputs

high level inputs

bass boost level control

power LED

protection LED

power fuse

power terminals

speaker connections

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

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

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

this indicator is illuminated when power is applied.

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

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

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

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

low level inputs	200mV	6
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	25A 2

dimensions(W H L)

mm292 48 360

inches 11.7 1.92 14.5

4ch Output Mode

L

PB844

FRONT speaker

R

Bridged Dual Mono Output Mode

speaker connections

4ch amp PB844

R

L REAR speaker 17

MINIMUN

SPEAKER IMPEDANCE 4OHMS!

speaker

LR