Instruction/ maintenance manual of the product PB681X Pyramid Car Audio
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congratulations... on your purchase of a Pyramid Crystal 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.
table of contents 1 mounting and installation 25 protection circuitry and troubleshooting 26 19 20 22 23-24 21 speaker connections PB681X/PB881X/PB1881X speaker connections PB481X/PB781X/PB1281X high .
general features 2 · 300 Watts x 2 Output · 600 Watts x 1 Bridged Output · Variable Hi/Lo Electronic Crossover Network · Variable Bass Boost (0 - + 18 dB @ 60Hz) · Variable Input Level (Gain) Con.
general features 3 · 300 Watts x 4 Output · 600W x 2 Bridged Output (300W x 2 + 600W x 1) · Dual Variable Hi/Lo Electronic Crossover Network · Dual Variable Bass Boost (0 - + 18 dB @ 60Hz) · Vari.
high level inputs input level control crossover mode selector protection LED low pass frequency control bass boost level low level inputs power LED high pass frequency control speaker connections powe.
frequency response power supply voltage output power @ 14.4v DC, 1KHz RMS Power @ 4 Ohms RMS Power @ 2 Ohms Maximum Power Output input sensitivity low level inputs high level inputs 40 Watts x 2 60 Watts x 2 300 Watts x 2 15 Hz-30 KHz 250mV 2.5V 14.4V DC Neg.
high level inputs input level control crossover mode selector protection LED low pass frequency control bass boost level low level inputs power LED high pass frequency control speaker connections powe.
7 features and specifications 2 ch amp P B781X crossover mode selector input level control low pass frequency control high pass frequency control bass boost level control low level inputs high level inputs power LED protection LED power fuse power terminals speaker connections when used with normal, full range systems, set this switch to “ FULL.
speaker connections power terminals power fuse Remote Bass Boost 8 pb1281X features and controls 2 ch amp PB 1 2 8 1 X high level inputs input level control crossover mode selector protection LED low .
frequency response power supply voltage output power @ 14.4v DC, 1KHz RMS Power @ 4 Ohms RMS Power @ 2 Ohms Maximum Power Output input sensitivity low level inputs high level inputs 75 Watts x 2 120 Watts x 2 800 Watts x 2 15 Hz-30 KHz 250mV 2.5V 14.4V DC Neg.
10 pb681X pb881X features and controls 4 ch amp PB 6 8 1 X • PB881X protection LED power LED ch 3/4 low level inputs ch 3/4 high level inputs ch 3/4 bass boost level control ch 3/4 low pass frequenc.
PB 681X frequency response power supply voltage output power @ 14.4v DC, 1KHz RMS Power @ 4 Ohms RMS Power @ 2 Ohms Maximum Power Output input sensitivity low level inputs high level inputs 35 Watts x 4 55 Watts x 4 250 Watts x 4 1 5 Hz-30 KHz 250mV 2.
12 pb1881X features and controls 4 ch amp PB 1881 X protection LED power LED speaker connections power terminals power fuse ch 1/2 low level inputs ch 1/2 high level inputs ch 3/4 low level inputs ch .
dual crossover mode selectors dual input level controls dual low pass frequency controls dual high pass frequency controls dual bass boost level controls low level inputs high level inputs power LED protection LED power fuse power terminals speaker connections when used with normal, full range systems, set these switches t o “ FULL.
GROUND +12V BA TT REM FUSE L R BRIDGED + - - + - + to remote turn-on +12V head unit 12V battery 14 electrical connections 2 ch amp PB481X • PB781X • PB1281X pb481X pb 781X pb1281X.
to remote turn-on +12V head unit 12V battery CH3 CH4 GROUND +12V BA TT REM BRIDGED FUSE BRIDGED + - - + - + - + - + - + CH1 CH2 to remote turn-on +12V head unit 12V battery REM CH3 CH4 GROUND +12V BA .
head unit L/R Audio Outputs from speaker terminals LL R R using high level inputs head unit wiring harness PLEASE NOTE! If using high level inputs, do not use the low level RCA inputs at the same time.
head unit using low level inputs PLEASE NOTE! If using high level inputs, do not use the low level RCA inputs at the same time! using high level inputs T o a second amplifier Y Adaptors 17 mono input .
4 CH input connections using low level inputs 2 CH input connections using low level inputs Y adaptors R L FREQ. CH 3 LOW IN LEVEL MIN MAX CH 4 HPF +18db 0 35 400 Hz LPF 80 HPF 2.
FREQ. CH 3 LOW IN LEVEL MIN MAX CH 4 HPF +18db 0 35 400 Hz LPF 80 HPF 2.5k 2.5k Hz +18db 0 BASS BOOST MIN MAX FREQ. CH 1 CH 2 80 Hz 35 400 Hz LPF HI IN CH4 CH3 + - - + HI IN CH2 CH1 + - - + LOW IN BAS.
RIGHT FRONT Audio Outputs LEFT FRONT Audio Outputs 4 CH mono input connections using low level inputs 2 CH mono input connections using low level inputs Y adaptors L R FREQ. CH 3 LOW IN LEVEL MIN MAX CH 4 HPF +18db 0 35 400 Hz LPF 80 HPF 2.5k 2.5k Hz +18db 0 BASS BOOST MIN MAX FREQ.
4 CH floating ground connections 4 CH harness wiring for common ground connections from speaker terminals PLEASE NOTE! If using high level inputs, do not use the low level RCA inputs at the same time! RL ORANGE ORANGE ORANGE ORANGE BLACK BLACK BLACK BLACK FREQ.
Stereo Output Mode Bridged Mono Output Mode speaker MINIMUM SPEAKER IMPEDANCE 4 OHMS! 22 speaker connections 2 ch amp PB481X • PB781X • PB1281X pb481X pb 781X pb1281X RIGHT speaker LEFT speaker.
4 CH Output Mode Bridged Dual Mono Output Mode REM CH3 CH4 GROUND +12V BA TT BRIDGED FUSE BRIDGED + - - + - + - + - + - + CH1 CH2 CH3 CH4 GROUND +12V BA TT REM BRIDGED FUSE BRIDGED + - - + - + - + - +.
2 CH Bridged Output Mode with Subwoofer Output pb681X pb881X pb1881X speaker connections 4 ch amp PB681X • PB881X • PB1881X 24 MINIMUM SPEAKER IMPEDANCE 4 OHMS! SPEAKERS R L SUBWOOFER REM CH3 CH4 .
mounting and installation 25 f uses wiring tips When making electrical connections to your amplifier , please observe the following: Use at least 8 gauge wire for power and ground connections. Wire the amplifier directly to the car battery . For the ground connection, use the shortest possible wire to a good chassis ground point.
The built-in protection circuitry in the Pyramid Crystal amplifiers will disable the amplifier if it senses an input overload, a speaker short circuit, or extreme temperature conditions. When the protection circuit is activated by any of these conditions, the Protection LED will be illuminated.
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.
An important point after buying a device Pyramid Car Audio PB681X (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Pyramid Car Audio PB681X yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Pyramid Car Audio PB681X - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Pyramid Car Audio PB681X you will learn all the available features of the product, as well as information on its operation. The information that you get Pyramid Car Audio PB681X will certainly help you make a decision on the purchase.
If you already are a holder of Pyramid Car Audio PB681X, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Pyramid Car Audio PB681X.
However, one of the most important roles played by the user manual is to help in solving problems with Pyramid Car Audio PB681X. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Pyramid Car Audio PB681X along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
