User's Manual

ManualsBrandsPyramid Car Audio ManualsStereo AmplifierPyramid Car Audio Pyramid Car Audio PB844

congratulations...

On your purchase of a Pyramid Signature Series

amplifier. This amplifier extends the pyramid

tradition into a totally new series of amps, designed

from the ground up to deliver the power,

performance and flexibility the modern car audio

enthusiast demands.

When you check the list of features offered by

the PB744,PB844 and PB1644, you’ll know you

made the right choice with a Pyramid Power

amplifier.

precautions

Do not operate the amplifier when it is unmounted,

Attach all audio system components securely within

the automobile to prevent damage, especially in an

accident.

Do not mount this amplifier so that the wire connections

are unprotected, or in a pinched condition, or likely to be

damaged by nearby objects.

If you need to replace the power fuse, do so only with a fuse

identical to that supplied with the amplifier. Using a fuse of a

different type or rating may result in damage that isn’t covered

in the manufacturer’s warranty.

Before making or breaking power connections in your system,

disconnect the vehicle battery. Confirm that your head unit or

other equipment is turned off while connecting the input jacks

and speaker terminals.

notes

Summary of content (12 pages)

PAGE 1
congratulations... On your purchase of a Pyramid Signature Series amplifier. This amplifier extends the pyramid tradition into a totally new series of amps, designed from the ground up to deliver the power, performance and flexibility the modern car audio enthusiast demands. When you check the list of features offered by the PB744,PB844 and PB1644, you’ll know you made the right choice with a Pyramid Power amplifier.
PAGE 2
troubleshooting protection circuitr y The built-in protection circuitry in the Pyramid Signature amplifiers will disable the amplifier if it senses an input overload, a speaker short circuit, or extreme temperature conditions. No output. Confirm that all terminal strip connections are secure and tight. Check both in-line and built-in fuses. Both the +12V and the Remote terminals must have +12V referenced to chassis ground. Confirm that the audio signal source(car radio, equalizer, etc.
PAGE 3
general features PB744 High Performance 1000Watt 2 channel Bridgeable MOSFET Amplifier ．500 Watts×2 Output ．1000 Watts×1 Bridged Output ．Variable Hi/Lo Electronic Crossover Network ．Variable Bass Boost(0-+18dB@60Hz) ．Variable Input Level(Gain)Control ．Remote Turn on/Off ．RCA Inputs ．MultiFuntion VFD ．Power ON LED Indicator ．LED Protection Indicator ．S/N Ratio: >95dB ．THD :<0.
PAGE 4
speaker connections 4ch amp PB1644 2CH Bridged Output Mode With Subwoofer Output PB1644 R SUBWOOFER L SPEAKERS MINIMUN SPEAKER IMPEDANCE 4OHMS! 20 PB1217 features and controls 2ch amp PB744 protection LED PB744 low level inputs power LED high pass frequency control low pass frequency control speaker connections SPEAKER OUTPUT output level remote bass boost input level control bass boost level crossover mode selector power fuse power terminals 3
PAGE 5
features and specifications 2ch amp PB744 crossover mode selector input level control 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.
PAGE 6
speaker connections 4ch amp PB844 2CH Bridged Output Mode with Subwoofer Output 18 PB844 L SUBWOOFER speakers R MINIMUN SPEAKER IMPEDANCE 4OHMS! features and controls 4ch amp PB844 CH1/2 low pass frequency control CH1/2 high pass frequency control protection LED CH1/2 input level control CH1/2 crossover mode selector switch CH1/2 bass boost level control CH1/2 level inputs 2/3/4 channel selectorl switch PB844 CH3/4 input level control power LED CH3/4 high pass frequency control CH3/4 low pass f
PAGE 7
features and specifications 4ch amp 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. 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.
PAGE 8
speaker connections 2ch amp PB744 Stereo Output Mode SPEAKER OUTPUT 16 PB744 LEFT speaker RIGHT speaker Bridged Mono Output Mode SPEAKER OUTPUT speaker features and controls 4ch amp PB1644 CH1/2 low pass frequency control CH1/2 high pass frequency control protection LED CH1/2 input level control CH1/2 crossover mode selector switch CH1/2 bass boost level control CH1/2 level inputs 2/3/4 channel selectorl switch PB1617X PB1644 CH3/4 input level control power LED CH3/4 high pass frequency control C
PAGE 9
features and specifications 4ch amp PB1644 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. output power@14.4v DC, 1KHz RMS Power @ 4 ohms 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.
PAGE 10
2/4 channel input connections 4ch amp PB844 PB1644 4ch input connections using low level inputs PB417X PB844 PB617X PB1644 head unit L/R REAR Audio Outputs L/R FRONT Audio Outputs 96.8 14 17 2ch input connections using low level inputs head unit L Y adaptors 96.8 R electrical connections 2ch amp PB744 SPEAKER OUTPUT PB417X PB744 +12V battery head unit 96.
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electrical connections 4ch amp PB844 10 PB844 +12V battery head unit 96.8 to remote turn-on +12V mono input connections 2ch amp PB744 using low level inputs PB744 13 To a sencond amplifier 96.
PAGE 12
stereo input connections 2ch amp PB744 PB744 12 head unit L/R Audio Outputs 96.8 PLEASE NOTE! If using high level inputs, do not use the low level RCA inputs at the same time! electrical connections 4ch amp PB1644 11 PB1644 +12V battery head unit 96.