Pyramid Car Audio PB744 Stereo Amplifier User Manual


 
features and specifications
4ch amp PB844
6
17
4ch Output Mode
Bridged Dual Mono Output Mode
MINIMUN
SPEAKER
IMPEDANCE
4OHMS!
4ch amp PB844
speaker connections
PB844
PB844
crossover mode selector
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.
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.
input level control
low level inputs
high pass frequency control
bass boost level control
high level inputs
low pass frequency control
power LED
protection LED
power fuse
power terminals
speaker connections
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.
this control permits adjustment of the bass level up to an increase of
approximately 18 dB.
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 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.
output power@14.4v DC, 1KHz
RMS Power @ 4 ohms
RMS Power @ 2 ohms
75Watts×4
180Watts×4
frequency response
10Hz-70KHz
input sensitivity
input impedance
high level inputs
low level inputs
10K Ohms
100 Ohms
low level inputs
200mV
power supply voltage
14.4V DC Neg.Ground (10.5-16V)
matching
speaker impedance
bridged mode
stereo mode
2-4 Ohms
4-8 Ohms
maximum current draw
dimensions(W×H×L)
mm
inches
25A×2
11.7×1.92×14.5
Maximum Power Output
250Watts×4
FRONT speaker
L
R
REAR speaker
L
R
speaker
L
R
292×48×360