Pb1281X - Pyramid PB1281X User Manual

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.
this control permits adjustment of the bass level up to an increase of
bass boost level control
approximately 18 dB.
this amp features gold-plated RCA input jacks for high impedance input.
low level inputs
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
high level inputs
output leads to these input connectors.
this indicator is illuminated when power is applied.
power LED
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.
features and specifications
2 c h a m p P B 1 2 8 1 X
output power @ 14.4v DC, 1KHz
RMS Power @ 4 Ohms
RMS Power @ 2 Ohms
Maximum Power Output
frequency response
input impedance
low level inputs
high level inputs
input sensitivity
low level inputs
high level inputs
power supply voltage
matching speaker impedance
stereo mode
bridged mode
maximum current draw
dimensions (W x H x L)
mm
inches
75 Watts x 2
120 Watts x 2
800 Watts x 2
15 Hz-30 KHz
10K Ohms
100 Ohms
250mV
2.5V
14.4V DC Neg. Ground (10.5-16V)
2-4 Ohms
4-8 Ohms
20A
276 x 60 x 394
10.9 x 2.4x 15.5
9