CRUNCH DR-1325.1 Ground Pounder 3500 Watt Amplifier Installation Guide
- August 8, 2024
- CRUNCH
Table of Contents
CRUNCH DR-1325.1 Ground Pounder 3500 Watt Amplifier
Product Information
Specifications
- Model : DR-1325.1
- Fuse Size : External 60A
- Cable Size : 4ga
Product Usage Instructions
It is crucial to use the correct power and ground cable size specified for your amplifier model. Always opt for high-quality copper cables to ensure optimal performance.
- Disconnect negative battery terminal: Ensure the negative battery terminal is disconnected and secured to avoid accidental contact with the battery post.
- Run Cables: Properly route power, speaker, and RCA cables through the vehicle.
- Mount Amplifier: Select a location with adequate air ventilation to mount the amplifier securely. Avoid mounting it upside down.
- Chassis Ground: Choose a location near the amplifier, scrape away paint for a good connection, and use a nut and bolt for grounding (avoid factory bolts).
- Power Connections: Use spade terminals to connect +12V to the power cable, REM to the source unit turn-on wire, and GND to the chassis ground.
- Signal Input: Connect RCA cables to the INPUT connectors; OUTPUT can be used for a second amplifier input.
- Level Control: Turn the LEVEL control counter-clockwise to a minimum.
- Positive Battery Connection: Connect the power cable to the positive battery terminal within 18 inches, ensuring it is fused.
- Re-connect Negative Battery Terminal: Re-connect and tighten the negative battery terminal securely.
- Xover Mode: Set the crossover mode switch based on your audio setup.
- High Pass Adjustment: Use the HPF control to protect midrange and high-frequency speakers.
- Low Pass Adjustment: Utilize the LPF control for a smooth transition to higher frequency speakers.
- Bass Boost: Increase bass output at 45Hz cautiously to avoid distortion.
- Remote Level Control: Exercise caution while adjusting the bass remote, especially while operating the vehicle.
FAQ
- Q: Why is it important to use high-quality copper cables for power and ground connections?
- A: High-quality copper cables ensure optimal performance and reduce the risk of electrical issues or damage to the amplifier.
- Q: How do I determine if my radio/source unit requires a reset code before disconnecting from battery power?
- A: Refer to your vehicle’s operation manual or contact the dealer to check if a reset code is needed to prevent anti-theft features from activating.
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.
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 cables.
- Cable size recommendations for multi-amp systems are available on our website.
Model Fuse Size Cable Size
- DR-1325.1 External 60A
- 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
4ga
Installation
Disconnect the negative battery terminal
- Place the 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 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 a 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 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
A: 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.
B: 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.
C: 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.
D: 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.
E: Remote Level Control
- Some models include a bass remote. Avoid adjusting the bass remote while operating vehicle.
F: Level Setting
- This is a critical step to ensure your amplifier is properly adjusted to match the signal output level of your source unit.
THIS IS NOT A VOLUME CONTROL!
-
If possible, with the source unit off, confirm that the primary volume control is turned down (counterclockwise).
-
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.
-
Play a clean musical selection of which you are very familiar. The CD is preferred.
Do not use radio signals to set the level. Hit play and start turning the volume of the source unit up. -
Stop increasing the source unit volume when you reach 3/4 (about 75%) or until you hear speakers begin to slightly start producing distortion.
-
Increase the amplifier level (clockwise) until the distortion is heard, then back the level down (counterclockwise) until the distortion is eliminated. Small adjustments may need to be made to balance the levels of multiple amplifiers.
G: Logo Illumination
- This is a step to control the illumination 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!
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
Maxxsonics, LLC. warrants this product, to the original consumer purchaser, to be free from defects in material and workmanship for one (1) year from the date of purchase. Maxxsonics, 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 Maxxsonics, LLC. 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 MMaxxsonics, 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.
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 settings, speaker and
subwoofer configuration, and full specifications by model visit the website,
http://crunchcaraudio.com/manuals.html
References
- Crunch | Fuel Your Audio. | Music Performance Audio Store
- Maxxsonics | Powered by Maxxsonics. | Audio Stores Online