DR-2525.4D - Receiver Crunch - Free user manual and instructions

USER MANUAL DR-2525.4D 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

DR-1325.1	External 80A
DR-2125.1D	External 80A
DR-2725.1D	External 100A
DR-3725.1D	External 150A
DR-2125.2D	External 100A
DR-3125.2D	External 125A
DR-1325.4D	External 60A
DR-2525.4D	External 80A

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

Bare metal

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 ball if possible. DO NOT USE AN EXISTING FACTORY BOLT!

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.

Positive Battery Connection

Connect the power cable to the positive battery terminal. The power cable must be fused within 18 inches of the battery terminal

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.

Common System Setup

4ch - Full Range

4ch - Mixed Mono

2ch

Mono

Setup

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.

High pass Adjustment

The HPF (high pass filter) control will limit the output below the selected frequency. This is typically used to protect midrange and high frequency speakers from damage and to allow a smooth transition from a subwoofer.

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 email amounts until distortion is noticed, then back off a little

Remote Level Control

Some models include a base remote. Avoid adjusting the base 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!

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-confirmed that the volume is turned down. Make sure the source unit controls; balance, faster, bass and treble are all set to center or "D" 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.

This is a step to control the illuminated on the front of the amplifier.

3-MODES: VU Meter mode. All red LED mode, and logo illumination off.

THIS IS NOT A REPLACEMENT FOR AN OSCILLOSCOPE - PLEASE USE PROPER TOOLS WHEN SETTING GAIN!

0dB -4dB -8dB

Please visit crunchcaraudio.com for more on this setup

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

WARRANTY

Maxxosnics, LLC. 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. Maxxosnics, LLC. will, at its 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 Maxxosnics, LLC. retailer from where it was purchased. A photocopy of the original receipt must accompany the product being sold on or before 30 days of sale. The sale price is \$250,000.00 per share of MMaxxosnics, LLC. This warranty is limited to defective parts and specifically excludes any incidental or consequential damages connected therewith. To view the full warranty, please visit the website.

Crunch products are designed and engineered in the USA by

MAXXSONICS

CHDOSO D -

CRUNCH

Quick Start Installation Guide

CRUNCH 08-3725.10 ST26 WATTS

DR-1325.1 DR-2125.2D DR-2125.1D DR-3125.2D DR-2725.1D DR-1325.4D DR-3725.1D DR-2525.4D

Congratulations on your choice of an Autotek 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.html