PZ2-2030.5D - Receiver Crunch - Free user manual and instructions

Product Type	Car Audio Amplifier (5-Channel)
Dimensions (L x W x H)	14.5 x 9.5 x 2.2 inches
Weight	8.5 lbs
Power Supply	12V DC (vehicle battery)
RMS Power Output (4 ohms)	75W x 4 + 300W x 1
RMS Power Output (2 ohms)	150W x 4 + 500W x 1
Max Power Output	2000W
Frequency Response	20 Hz - 20 kHz
Crossover	Variable low-pass and high-pass (50-250 Hz)
Bass Boost	0-12 dB @ 45 Hz
Input Sensitivity	200 mV - 6V
Signal-to-Noise Ratio	>100 dB
Total Harmonic Distortion	<0.05%
Number of Channels	5 (4 full-range + 1 subwoofer)
Fuse Rating	80A (external fuse recommended)
Maintenance	Clean with dry cloth; avoid liquids
Safety	Disconnect battery before installation; ensure proper ventilation
Spare Parts and Repairability	Contact Crunch customer service for replacement parts
General Information	Designed for car audio systems; bridgeable channels for more power

Frequently Asked Questions - PZ2-2030.5D Crunch

What is the RMS power output of the Crunch PZ2-2030.5D amplifier?

The RMS power output is 75W x 4 channels at 4 ohms and 300W x 1 channel at 4 ohms for the subwoofer channel. At 2 ohms, it delivers 150W x 4 and 500W x 1.

Can I bridge channels on this amplifier?

Yes, the PZ2-2030.5D allows bridging of channels to increase power output. Refer to the manual for specific bridging configurations.

What impedance can this amplifier handle?

The amplifier is stable down to 2 ohms for all channels and 1 ohm for the subwoofer channel (mono). Ensure your speakers match the impedance.

How do I adjust the crossover settings?

Use the low-pass and high-pass crossover controls (50-250 Hz) to set the frequency cutoff. The subwoofer channel has a dedicated low-pass filter.

What size fuse is required?

An 80A external fuse is recommended. Use a fused distribution block if connecting multiple amplifiers.

Does the amplifier have bass boost?

Yes, it features a variable bass boost (0-12 dB) centered at 45 Hz to enhance low-frequency output.

What is the input sensitivity range?

The input sensitivity is adjustable from 200 mV to 6V, allowing compatibility with various head units.

How do I prevent overheating?

Ensure the amplifier is mounted in a well-ventilated area. Do not obstruct the heatsink. If it goes into thermal protection, let it cool down.

What are the dimensions for installation?

The amplifier measures 14.5 x 9.5 x 2.2 inches (L x W x H). Ensure enough space for wiring and ventilation.

Is the amplifier protected against short circuits?

Yes, it includes protection circuitry for short circuits, thermal overload, and low voltage. If a fault occurs, the amplifier will shut off automatically.

USER MANUAL PZ2-2030.5D Crunch

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.

Power / Ground cable size

It is critical to use the proper power and ground cable. Select the size listed here for your amplifier model. Always use high quality copper cable.

Cable size recommendations for multi-amp systems are available on our website.

Model

Fuse Size

Cable Size

PZ 2-1530.1D PZ 2-2030.1D PZ 2-3030.1D PZ 2-4030.1D PZ 2-1030.2D PZ 2-1530.2D PZ 2-2030.2D PZ 2-1530.4D PZ 2-2030.4D PZ 2-2030.5D

External 60A External 90A External 125A External 150A External 40A External 50A External 100A External 40A External 80A External 100A

Installation

Disconnect negative battery terminal

Place terminal in a secure position so that it won't accidentally contact the negative battery post

Run Cables

Properly route power, speaker and RCA cables through the vehicle.

Mount Amplifier

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

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 BOLTI

Power Connections

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..

Signal Input Low Level RCA

Connect the RCA cables to the INPUT connectors. The OUTPUT can be used to provide input for a second amplifier.

Level Control

Turn the LEVEL control completely counter-clockwise to minimum.

Signal Input 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.

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

Speaker Connections

Using spade terminals, connect the speaker cables to the speaker output connectors. Follow the diagram below that best fills your speaker configuration.

Stereo

Bridged

onoblock single wooler Monoblock multiple woolers

Positive Battery Connection

Connect the power cable to the positive battery terminal. The power cable must be fused within 16 inches of the battery (in vivo).

Be prepared to disarm your vehicle's alarm and to enter your radio / source unit code.

Re-connect Negative Battery Terminal

Re-connect the negative battery terminal making sure it is securely tightened.

Setup

Input Mode

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 subworkers.

MODE

Xover Mode

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.

XOVER

High pass Adjustment

The HPF(high pass tiller) 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.

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Low pass Adjustment

The LPF(low pass filter) control will limit output above the selected frequency. This is used to allow a smooth transition to the higher frequency speakers.

Bass Boost

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.

Remote Level Control

Some models include a bass remote. Avoid adjusting the bar remote while operating vehicle.

Level Setting

This is a critical step to insure your amplifier is properly adjusted to match the signal output level of your source unit.

THIS IS NOT A VOLUME CONTROL!

07 0.2V

1. If possible, with the source unit off, confirm that the primary volume control is turned down (counter clockwise).
2. Turn on the source unit (CD, or MP3 player). Re confirm 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 amplifier 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 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.

Common System Setup

2ch - Full Range

4ch - Full Range

4ch - Mixed Mono

Mono

Sch

WARRANTY

Maxozenes, LLC. warrants this product. In the original consumer purchaser to be free from defects in material and partnership for a period of one (5) year from the date of purchases. Maxozenes, LLC. will at a distribution report or replace defective products during the warranty period. Composers that prove to be detected in materials and relationships under proper inscriptions are used must be returned to the original authorized Maxozenes, LLC, relative from where it was purchased. A photocopy of the original receipt must accompany the product being returned. The costs associated with removia, re-installation and freight are not the responsibility of Maxozenes LLC. This warranty is limited to defective parts and is not only excludes any individual or consequential damages connected forth. To view the full warranty, please visit the website.

Crunch products are designed and engineered in the USA by

MAXXSONICS

www.maxxsonics.com

CR172 2021CSGPI-MA

CRUNCH®

Quick Start Installation Guide

Exterior view of a CRUNCH audio amplifier device (no visible text or symbols beyond branding)

PZ2-1530.1D

PZ2-2030.1D

PZ2-3030.1D

PZ2-4030.1D

PZ2-1030.2D

PZ2-1530.2D

PZ2-2030.2D

PZ2-1530.4D

PZ2-2030.4D

PZ2-2030.5D

Congratulations on your choice of a Crunch amplifier. 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 configuration and full specifications by model visit the website, http://crunchcaraudio.com/manuals