9V 0.2V
INPUT
LEVEL
PHASE
0 180
BASS EQ
0 10dB
BASS EQ
0 9dB
15 35Hz
SUBSONIC
10 40Hz
SUBSONIC
30 250Hz
LPF
35 250Hz
LPF
40 300Hz
LPF
FULL
LP
HP
XOVER
MONO STEREO
MODE
FULL
LPF
HPF
XOVER
MONO STEREO
MODE
60 1.3KHz
HPF
60 1.2KHz
HPF
SPEAKER OUTPUT
SPEAKER OUTPUT
SPEAKER
LEFT RIGHT
BRIDGED
OUTPUT
SPEAKER
LEFT RIGHT
BRIDGED
OUTPUT
SPEAKER OUTPUT
SPEAKER OUTPUT
SPEAKER
LEFT RIGHT
BRIDGED
OUTPUT
SPEAKER
LEFT RIGHT
BRIDGED
OUTPUT
SPEAKER
LEFT RIGHT
BRIDGED
OUTPUT
SPEAKER OUTPUT
SPEAKER OUTPUT
SPEAKER
LEFT RIGHT
BRIDGED
OUTPUT
SPEAKER
LEFT RIGHT
BRIDGED
OUTPUT
SPEAKER
LEFT RIGHT
BRIDGED
OUTPUT
SPEAKER OUTPUT
SPEAKER OUTPUT
SPEAKER OUTPUT
SPEAKER
LEFT RIGHT
BRIDGED
OUTPUT
SPEAKER
LEFT RIGHT
BRIDGED
OUTPUT
SPEAKER OUTPUT
Setup
The input MODE switch will “sum” or
combine the right and left channel signals
in the MONO position to improve bass
performance. Select MONO only when the
amp is being used for subwoofers.
The XOVE e R Mode switch sets the typ
of crossover that will be active. 4 channel
models will have two switches, one for each
set of channels.
The HPF(hig ss lter) control will limit the h pa
output below the selected frequency. This
is typically used to protect midrange and hi
frequency speakers from damage and to
allow a smooth transition from a subwoofer.
The LPF(low pass lter) control will limit
output above the selected frequency. This
is used to allow a smooth transition to the
higher frequency speakers.
1. If possible, with the source unit off, conrm that the primary volume control is
is
turned down (counter clockwise).
2. Turn on the source unit (CD, or MP3 player). Re-conrm that the volume
turned down. Make sure the source unit controls; balance, fader, bass and
on LEDtreble are all set to center or “0” adjustment. Make sure that the green
the end of the amplier is illuminated.
3. Play a clean musical selection of which you are very familiar. CD is preferred.
volume Do not use radio signals for level setting. Hit play and start turning the
of the source unit up.
4. Stop increasing the source unit volume when you reach 3/4 (about 75%) or
until you hear speakers begin to slightly start producing distortion.
5. Increase the amplifier level (clockwise) until distortion is heard, then back
the level down (counter clockwise) until the distortion is eliminated. Small
adjustments may need to be made to balance the levels of multiple amplifiers.
Input Mode
Xover Mode
High pass
Adjustment
Low pass
Adjustment
Bass Boost
Remote Level
Control
Common System Setup
2ch - Full Range
Range Full
4ch -
- Mixed Mono
4ch
Mono
A
B
C
D
E
F
The BASS BOOST or BASS EQ control
will increase the output at 45Hz for more
pronounced bass. Exercise caution.
Increase the level in small amounts until
distortion is noticed, then back off a little.
Some models include a bass
remote. Avoid adjusting the bass
remote while operating vehicle.
This is a critical step to insure your amplier
is properly adjusted to match the signal
output level of your source unit.
THIS IS NOT A VOLUME CONTROL!
Level Setting
G
MONO STEREO
MODE
FULL LPF HPF
XOVER
60Hz 1.2KHz
HPF
30Hz 250Hz
LPF
0dB 9dB
BASS
BOOST
6V 0.2V
LEVEL
FULL
LPF HPF
XOVER
MONO STEREO
MODE
15Hz 55Hz
SUB
SONIC
30Hz 250Hz
LOW
PASS
FULL
LPF HPF
XOVER
60Hz 1.2KHz
HPF
30Hz 250Hz
LPF
CH 1/2CH 3/4
FULL
LPF HPF
XOVER
60Hz 1.2KHz
HPF
30Hz 250Hz
LPF
FULL
LPF HPF
XOVER
60Hz 1.2KHz
HPF
30Hz 250Hz
LPF
CH 1/2CH 3/4
FULL
LPF HPF
XOVER
60Hz 1.2KHz
HPF
30Hz 250Hz
LPF
SPEAKER OUTPUT
SPEAKER OUTPUT
LEFT RIGHT
BRIDGED
SPEAKER OUTPUT
LEFT RIGHT
BRIDGED
SPEAKER OUTPUT
LEFT RIGHT
BRIDGED
SPEAKER OUTPUT
LEFT RIGHT
BRIDGED
LEFT RIGHT
BRIDGED
SPEAKER
OUTPUT
Quick Start
Installation Guide
Congratulations on your choice of a Crunch ampli
er. This
“Quick Start Installation” guide is meant to help you “hook
up” and play music.
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