Crunch PZX750.2 Quick Start Installation Manual

Before you start

CAUTION
Many new and factory radios require a reset code when
disconnected from battery power. This is an anti-theft
feature. Before unplugging power, you must determine if
your radio/source unit requires a reset code. Check the
operation manual for your vehicle or contact the dealer.
Model
Power / Ground
750.2
cable size
900.4
1000.2
It is critical to use the proper
1200.4
power and ground cable. Select
1300.2
the size listed here for your
amplifier model. Always use high
1800.2
quality copper cable.
1800.4
2000.1
Cable size recommendations for
3500.1
multi amp systems are available
4000.4
on our website.
5000.1
Installation
Disconnect
1
negative battery
terminal
Place terminal in a secure
position so that it won't
accidentally contact the
negative battery post
Run Cables
2
Properly route power,
speaker and RCA cables
through the vehicle.
Mount Amplifier
3
Choose a mounting location
that will provide adequate air
ventilation. Mount the amplifier to
a secure surface. Do not mount
the amplifier upside down.
Chassis Ground
4
The chassis ground connection
is critical to the performance
of the amplifier. Choose a
location that is close to the
amplifier. Completely scrape
away the paint and use a nut
and bolt if possible.
DO NOT USE AN EXISTING
FACTORY BOLT!
Power
5
Fuse Size Cable Size
a
Connections
1-30A atc
Smaller amps
1-30A atc
8ga
1-40A atc
Using spade terminals, connect the
1-30A atc
+12V to the power cable from the
2-30A atc
battery, the REM to the source unit
turn-on wire and the GND to the
2-40A atc
chassis ground..
2-30A atc
4ga
2-30A atc
2-40A atc Power
5
b
2-40A maxi
Connections
3-40A atc
Larger amps
Strip each cable back approx 1/2",
connect the +12V to the power
cable from the battery, the REM to
the source unit turn-on wire and the
GND to the chassis ground..
Signal Input
6
Low Level RCA
Connect the RCA cables to
the INPUT connectors. The
OUTPUT can be used to
provide input for a second
amplifier.
Signal Input
7
High Level
The HI INPUT is for use with
source units that do not offer
RCA outputs. Use the supplied
harness to connect to the
source unit's speaker output.
8 Level Control
Bare metal
BRIDGED
LEFT RIGHT
SPEAKER OUTPUT
BRIDGED
LEFT RIGHT
Connect to factory speater wire directly
SPEAKER OUTPUT
Right + (gray) 4CH REAR
Ch3 Right + (orange)
Right - (brown)
Ch3 Right - (pink)
Chassis ground (black)
Chassis Ground (black)
Left - (green)
Ch4 Left + (blue)
Left + (white)
Ch4 Left - (yellow)
INPUT
Turn the LEVEL control completely
LEVEL
counter-clockwise to minimum.
9V 0.2V
PHASE
Speaker
9
Connections SPEAKER OUTPUT
Using spade terminals,connect
the speaker cables to the speaker
output connectors. Follow the
diagram below that best fits your
speaker configuration.
Stereo Bridged
BRIDGED
BRIDGED
LEFT RIGHT
LEFT RIGHT
SPEAKER OUTPUT
SPEAKER OUTPUT
Monoblock Monoblock
single woofer
BRIDGED
LEFT RIGHT
SPEAKER OUTPUT
SPEAKER OUTPUT
Positive Battery
10
Connection
Connect the power cable to the
positive battery terminal. The
power cable must be fused
within 18 inches of the battery
terminal.
SPEAKER OUTPUT
Be prepared to disarm your vehicle's alarm and
to enter your radio / source unit code.
Re-connect
11
Negative Battery
Terminal
SUBSONIC Re-connect the negative XOVER
battery terminal making sure it
is securely tightened.
15 35Hz
FULL HP
LP
LPF
SPEAKER OUTPUT
BRIDGED
LEFT RIGHT
SPEAKER OUTPUT
SPEAKER OUTPUT
SPEAKER OUTPUT
multiple woofers
BRIDGED
LEFT RIGHT
BRIDGED
LEFT RIGHT
SPEAKER OUTPUT
SPEAKER OUTPUT
SPEAKER OUTPUT
SPEAKER OUTPUT