Crunch PX1025.2 Instruction Manual

Place terminal in a secure
position so that it won’t
accidentally contact the
negative battery post
Power / Ground
cable size
It is critical to use the proper
power and ground cable. Select
the size listed here for your
amplier model. Always use high
quality copper cable.
Cable size recommendations for
multi amp systems are available
on our website.
Properly route power,
speaker and RCA cables
through the vehicle.
Choose a mounting location
that will provide adequate air
ventilation. Mount the amplier to
a secure surface. Do not mount
the amplier upside down.
Using spade terminals, 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..
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..
Bare metal
Connect the RCA cables to
the INPUT connectors. The
OUTPUT can be used to
provide input for a second
amplier.
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.
Connect the power cable to the
positive battery terminal. The
power cable must be fused
within 18 inches of the battery
terminal.
Re-connect the negative
battery terminal making sure it
is securely tightened.
Using spade terminals,connect
the speaker cables to the speaker
output connectors. Follow the
diagram below that best ts your
speaker conguration.
The chassis ground connection
is critical to the performance
of the amplier. Choose a
location that is close to the
amplier. Completely scrape
away the paint and use a nut
and bolt if possible.
DO NOT USE AN EXISTING
FACTORY BOLT!
Disconnect
negative battery
terminal
Run Cables
Mount Amplier
Power
Connections
Smaller amps
Signal Input
Low Level RCA
Power
Connections
Larger amps
Signal Input
High Level
Positive Battery
Connection
Re-connect
Negative Battery
Terminal
Speaker
Connections
Chassis Ground
Be prepared to disarm your vehicle’s alarm and
to enter your radio / source unit code.
Stereo
Installation
Before you start
Monoblock single woofer Monoblock multiple woofers
Bridged
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.
1
2
3
5a
5b
6
7
10
11
94
Turn the LEVEL control completely
counter-clockwise to minimum.
Level Control
8
9V 0.2V
INPUT
LEVEL
6V 0.2V
INPUT
LEVEL
PHASE
0 180
BASS EQ
0 10dB
BASS EQ
0 9dB
BASS EQ
0 12dB
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
4CH 2CH
MODE
60 1.3KHz
HPF
60 1.2KHz
HPF
10 2.5KHz
HPF
10 1.5KHz
HPF
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
LEFT RIGHT
BRIDGED
OUTPUT
SPEAKER 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
LEFT RIGHT
BRIDGED
OUTPUT
SPEAKER OUTPUT
Right + (gray) 4CH REAR
Ch3 Right + (orange)
Ch3 Right - (pink)
Chassis Ground (black)
Ch4 Left + (blue)
Ch4 Left - (yellow)
Connect to factory speaker wire directly
Right - (brown)
Left - (green)
Left + (white)
Chassis ground (black)
Right + (gray)
Ch3 Right + (orange)
Ch3 Right - (pink)
Chassis Ground (black)
Ch4 Left + (blue)
Ch4 Left - (yellow)
Connect to factory speaker wire directly
Right - (brown)
Left - (green)
Left + (white)
Chassis ground (black)
4ga
PX1025.2
PX1025.4
PX1025.1
PX2025.1D
1-40A
2-30A
1-40A
2-40A
Cable SizeFuse SizeModel

Setup Common System Setup
Quick Start
Installation Guide
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 XOVER Mode switch sets the type
of crossover that will be active. 4 channel
models will have two switches, one for each
set of channels.
The HPF(high pass lter) control will limit the
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, conrm that the primary volume control is
turned down (counter clockwise).
2. Turn on the source unit (CD, or MP3 player). Re-conrm that the volume is
turned down. Make sure the source unit controls; balance, fader, bass and
treble are all set to center or “0” adjustment. Make sure that the green LED on
the end of the amplier is illuminated.
3. Play a clean musical selection of which you are very familiar. CD is preferred.
Do not use radio signals for level setting. Hit play and start turning the volume
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 amplier 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 ampliers.
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.
Input Mode
Xover Mode
High pass
Adjustment
Low pass
Adjustment
Bass Boost
Remote Level
Control
2ch - Full Range
4ch - Full Range
4ch - Mixed Mono
Mono
A
B
C
D
E
F
This is a critical step to insure your amplier
is properly adjusted to match the signal
output level of your source unit.
THIS IS NOT A VOLUME CONTROL!
Level Setting
G
WARRANTY
Maxxsonics USA Inc. warrants this product, to the original consumer purchaser, to be free from
defects in material and workmanship for a period of one (1) year from the date of purchase.
Maxxsonics USA Inc. will, at it’s discretion, repair or replace defective products during the warranty
period. Components that prove to be defective in materials and workmanship under proper installation
and use must be returned to the original authorized Maxxsonics USA Inc. retailer from where it was
purchased. A photocopy of the original receipt must accompany the product being returned. The
costs associated with removal, re-installation and freight are not the responsibility of Maxxsonics
USA Inc. This warranty is limited to defective parts and specically excludes any incidental or
consequential damages connected therewith. To view the full warranty, please visit the website.
The information contained within this document is intended to offer some basic guidelines
for a few of the most common installations. More complex audio systems should be
installed by a competent professional. Additional installation information available at
www.maxxsonics.com
Crunch products are designed and engineered in the USA by
www.maxxsonics.com
Px1025.2
Px1025.4
Px1025.1
Px2025.1D
Congratulations on your choice of a Crunch amplier. This
“Quick Start Installation” guide is meant to help you “hook
up” and play music. For more detailed information, on
system setting, speaker and subwoofer conguration and
full specications by model visit the website,
http://crunchusa.net/manuals.html
6V 0.2V
LEVEL
0dB 9dB
BASS
BOOST
15Hz 55Hz
SUB
SONIC
30Hz 250Hz
LPF
30Hz 250Hz
LPF
40Hz 150Hz
LPF
60Hz 1.2KHz
HPF
FULL LPF HPF
XOVER
MONO STEREO
MODE
4CH 2CH
MODE
MONO STEREO
MODE
4 2
MODE
6V 0.2V
LEVEL
0dB 9dB
BASS
BOOST
15Hz 55Hz
SUB
SONIC
30Hz 250Hz
LPF
30Hz 250Hz
LPF
40Hz 150Hz
LPF
60Hz 1.2KHz
HPF
FULL LPF HPF
XOVER
MONO STEREO
MODE
4CH 2CH
MODE
MONO STEREO
MODE
4 2
MODE
6V 0.2V
LEVEL
0dB 9dB
BASS
BOOST
15Hz 55Hz
SUB
SONIC
30Hz 250Hz
LPF
30Hz 250Hz
LPF
40Hz 150Hz
LPF
60Hz 1.2KHz
HPF
FULL LPF HPF
XOVER
MONO STEREO
MODE
4CH 2CH
MODE
MONO STEREO
MODE
4 2
MODE
6V 0.2V
LEVEL
0dB 9dB
BASS
BOOST
15Hz 55Hz
SUB
SONIC
30Hz 250Hz
LPF
30Hz 250Hz
LPF
40Hz 150Hz
LPF
60Hz 1.2KHz
HPF
FULL LPF HPF
XOVER
MONO STEREO
MODE
4CH 2CH
MODE
MONO STEREO
MODE
4 2
MODE
6V 0.2V
LEVEL
0dB 9dB
BASS
BOOST
15Hz 55Hz
SUB
SONIC
30Hz 250Hz
LPF
30Hz 250Hz
LPF
40Hz 150Hz
LPF
60Hz 1.2KHz
HPF
FULL LPF HPF
XOVER
MONO STEREO
MODE
4CH 2CH
MODE
MONO STEREO
MODE
4 2
MODE
6V 0.2V
LEVEL
0dB 9dB
BASS
BOOST
15Hz 55Hz
SUB
SONIC
30Hz 250Hz
LPF
30Hz 250Hz
LPF
40Hz 150Hz
LPF
60Hz 1.2KHz
HPF
FULL LPF HPF
XOVER
MONO STEREO
MODE
4CH 2CH
MODE
MONO STEREO
MODE
4 2
MODE
FULL LPF HPF
XOVER
FULL LPF HPF
XOVER
MONO STEREO
MODE
60Hz 1.2KHz
HPF
30Hz 250Hz
LPF
CH 1/2CH 3/4
FULL LPF HPF
XOVER
60Hz 1.2KHz
HPF
30Hz 250Hz
LPF
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
FULL LPF HPF
XOVER
MONO STEREO
MODE
60Hz 1.2KHz
HPF
30Hz 250Hz
LPF
CH 1/2CH 3/4
FULL LPF HPF
XOVER
60Hz 1.2KHz
HPF
30Hz 250Hz
LPF
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
FULL LPF HPF
XOVER
MONO STEREO
MODE
60Hz 1.2KHz
HPF
30Hz 250Hz
LPF
CH 1/2CH 3/4
FULL LPF HPF
XOVER
60Hz 1.2KHz
HPF
30Hz 250Hz
LPF
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
FULL LPF HPF
XOVER
MONO STEREO
MODE
60Hz 1.2KHz
HPF
30Hz 250Hz
LPF
CH 1/2CH 3/4
FULL LPF HPF
XOVER
60Hz 1.2KHz
HPF
30Hz 250Hz
LPF
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
SPEAKER OUTPUT
SPEAKER OUTPUT
SPEAKER
LEFT RIGHT
BRIDGED
OUTPUT
SPEAKER
LEFT RIGHT
BRIDGED
OUTPUT
SPEAKER
LEFT RIGHT
BRIDGED
OUTPUT
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
CR PX 2020 QSG 01 - rev1