Amplifier Feature Descriptions - Crunch P500.2 User Manual

AMPLIFIER FEATURE DESCRIPTIONS

POWERZONE AMPLIFIERS:
Each model is capable of 4 & 2-Ohms stereo per channel, or 4-Ohms mono bridged operation except the mono amps
which are capable of 4, 2 and 1-Ohm loads.
The input sensitivities for rated output powers are variable from 0.2V to 5V on the multi channel amplifiers and 0.2V to
6V on the mono models.
All crossovers are fully variable in their respective ranges.
Crossover filters are 12dB/Octave.
A POWER LED indicates the powered up and turned on condition.
The X-OVER slide switch selects the internal crossover functions:
-The input signal is routed directly to the LINE OUT RCA jacks, regardless of the X-OVER setting simplifying daisy chaining of amplifiers.
-HPF: Selects the built in HIGH PASS filter, variable from 60 Hz to 1.2kHz.
-FULL: Bypasses all crossovers for full frequency range operation.
-LPF: Selects the built in LOW PASS , variable from 30 Hz to 250Hz.
-BASS EQ: Adjustable 45Hz bass boost from 0dB to 9dB.
MODE: The mode switch allows you to choose Stereo for full range 2 channel operation or MONO for bridging operation
HIGH INPUT: If your radio/CD player does not have unbalanced (RCA) outputs, you can use the HIGH level (wire) inputs.
LINE INPUT: The line input accepts unbalanced (RCA) inputs from 0.2V to 5V.
LINE OUTPUT: The line output passes through signal from the line inputs which allows you to daisy chain multiple amplifiers from one signal.
Note that the LOW PASS signal is MONO.
-In the LPF position, the HIGH PASS filter acts as a subsonic filter.
-When the LPF mode is selected, a 0 to +9dB, at 45Hz, BASS -EQ is also switched in.
The 4 channel amps have the same features as the 2 channel models accept that there are 2 sets of controls. 1 set for channels 1 & 2 and 1 set for channels 3 & 4.
In addition, the 4 channel models have a Mode switch which allows you to select 2, 3 or 4 operation. Switch to Mode 2 if you only have 1 set of RCA's in CH 1/2 and the unit will
automatically supply signal to channels 3/4. Select Mode 3 when you only have RCA's in CH 1/2 but plan to run channels 3/4 bridged. Select Mode 4 if you are providing
RCA's to channels 1/2 and 3/4.
The X-OVER slide switch selects the internal crossover functions:
-The input signal is routed directly to the LINE OUT RCA jacks, regardless of the X-OVER setting simplifying daisy chaining of amplifiers.
-HPF: Selects the built in HIGH PASS filter, variable from 60 Hz to 1.2kHz.
-FULL: Bypasses all crossovers for full frequency range operation.
-LPF: Selects the built in LOW PASS , variable from 30 Hz to 250Hz.
-BASS EQ: Adjustable 45Hz bass boost from 0dB to 9dB.
LINE INPUT: The line input accepts unbalanced (RCA) inputs from 0.2V to 5V.
LINE OUTPUT: The line output passes through signal from the line inputs which allows you to daisy chain multiple amplifiers from one signal.
Note that the LOW PASS signal is MONO.
-In the LPF position, the HIGH PASS filter acts as a subsonic filter.
-When the LPF mode is selected, a 0 to +9dB, at 45Hz, BASS -EQ is also switched in.
POWER
PROTECT
-The LINE INPUT signal is routed directly to the LINE OUT RCA jacks, regardless of the X-OVER setting simplifying daisy chaining of amplifiers.
-SUBSONIC: Allows you to adjust the crossover filter from 15Hz to 55Hz.
-LOWPASS: Allows yo to adjust the LOW PASS crossover filter from 40Hz to 150Hz.
LEVEL: Adjusts the input sensitivity from 0.2 volts to 6 volts.
BASSBOOST: 45Hz bass boost adjustable from 0db to 12dB.
REMOTE CONTROL: This is the input jack for the remote Level control.
LINE INPUT: The line input accepts unbalanced (RCA) inputs from 0.2V to 6V.
LINE OUTPUT: The line output passes through signal from the line inputs which allows you to daisy chain multiple amplifiers from one signal.
The mono amps are capable of 4, 2 & 1-Ohm loads.
Operating the amp below 1-Ohm can cause damage to the amp not covered in the warranty.
PZ800.2 / PZ1200.2 / PZ1800.2 / PZ2400.2 2-CHANNEL AMPLIFIERS
L L
LEVEL BASS EQ HPF
+ - gnd - +
HI INPUT
R R
LINE OUT LINE INPUT
PZ900.4 / PZ1200.4 / PZ1800.4 / PZ3000.4 4-CHANNEL AMPLIFIERS
LEVEL BASS EQ HPF
CH3/4 CH1/2
Ch3 Ch4
R R
+ - gnd - +
5V 0.2V
HI INPUT
LEVEL BASS EQ HPF
+ - gnd - +
L L
Ch1 Ch2
LINE INPUT
5V 0.2V
PZ1500.1 / PZ2500.1 MONO BLOCK AMPLIFIERS
REMOTE
BASS
CONTROL
BOOST
0dB 12dB 15Hz 55Hz 40Hz 150Hz 6V 0.2V
All Crunch amplifiers feature a comprehensive diagnostic system, with speaker lead short circuit, and amplifier DC
faults indicated by the red "PROTECT" LED.
CAUTION: DO NOT OPERATE ANY AMPLIFIER BELOW THE INTENDED IMPEDANCE. YOU WILL CAUSE
DAMAGE TO THE AMPLIFIER THAT WILL NOT BE COVERED UNDER THE WARRANTY PRINTED IN THE BACK
OF THE MANUAL. 2 & 4 Channel amps are capable of 4 and 2-Ohms wired stereo and 4-Ohms wired mono
bridged. The mono amps are capable of 4, 2 and 1-Ohm.
LPF
5V 0.2V 0dB 9dB 60Hz 1.2KHz 30Hz 250Hz
CHANNEL 3 / 4
LPF X-OVER
FULL LPF
0dB 9dB 60Hz 1.2KHz 30Hz 250Hz
LPF X-OVER
FULL LPF
0dB 9dB 60Hz 1.2KHz 30Hz 250Hz
CHANNEL 1 / 2
SUB LOW
LEVEL
SONIC PASS
X-OVER MODE
FULL LPF HPF MONO STEREO
MODE
2 3 4
HPF
LINE OUTPUT
HPF
OUTPUT INPUT
L L
R R