PowerBass ATM 330.2 User Manual

PowerBass ATM 330.2

24 pages

To Next Page

To Next Page

Page #1 background image

Loading...

Page #1 background image

ATM COMPACT CLASS A/B AMPLIFIER

Owners Manual

Please read through this manual to familiarize yourself with your new ampliﬁer. Should your PowerBass

AutoSound mobile ampliﬁer ever require service, you will need to have the original dated receipt.

ATM 330.2

ATM 440.2

ATM 550.4

ATM 660.4

Table of Contents

Questions and Answers:

D
dhollandJul 31, 2025
What to do if the red status protection LED is ON and there is no output from my PowerBass ATM 330.2 Amplifier?
- B
  Brandon PhillipsJul 31, 2025
  The red status protection LED indicates a problem that needs attention. Several issues could be the cause: * If the amplifier is very hot, the thermal protection may be engaged. Check the speaker terminals for proper impedance and ensure adequate airflow around the amplifier. * If the amplifier shuts down only when the vehicle is running, the voltage protection may be engaged. This means the voltage to the amplifier is outside the 10-16 VDC operating range. Have the battery/charging system inspected. * If the amplifier plays at a very low volume, the short circuit protection might be engaged. Inspect the speaker wires for shorts to each other or the vehicle's chassis. Also, using speakers with impedance below the minimum can trigger this.
W
William KellerAug 6, 2025
Why is there alternator noise (varies with RPM) coming from my PowerBass Amplifier?
- M
  Michael GoodwinAug 6, 2025
  Alternator noise that changes with RPM can be caused by several factors. Check for the following: * Damaged RCA cables * Improper routing of the RCA cables * A poor ground connection at the source unit * An amplifier gain setting that is too high (reduce the gain if it is) * A chassis ground short on the speakers
J
Jacqueline FernandezAug 12, 2025
How to fix poor bass response on PowerBass ATM 330.2 Amplifier?
- P
  phelpsmariaAug 12, 2025
  To improve poor bass response, check the speaker polarity. Try reversing the connection of only one speaker.
P
potterhelenAug 18, 2025
What to do if the Power LED lights BLUE but there is no output from my PowerBass Amplifier?
- M
  Mark DiazAug 18, 2025
  If the power LED is blue but there's no output, try these steps: * Check the RCA connections. * Test the speaker outputs with a known good speaker. * Substitute a known good source unit. * Check for a signal on the RCA cable using a VOM (Volt Ohm Meter) in AC position.
L
Laura PalmerAug 25, 2025
How to troubleshoot a PowerBass ATM 330.2 Amplifier when the power LED is not ON?
- C
  Clifford YoungAug 25, 2025
  Using a Volt Ohm Meter (VOM), check the following: * +12 Volt power terminal (should read +12 to +16VDC) * Remote turn-on terminal (should read +12 to +16VDC) * Ground Terminal

PowerBass ATM 330.2 Specifications

General

Channels	2
THD at Rated Power	<0.05%
Signal to Noise Ratio	>90dB
Damping Factor	>200
Input Sensitivity	200mV - 6V
Crossover Slope	12dB/octave
Bass Boost	0-12dB
Bass Boost Frequency	45Hz
Fuse Rating	25A
Power Output @ 4 Ohms	80W x 2
Low Pass Crossover	40Hz - 250Hz
High Pass Crossover	40Hz - 250Hz

Summary

ATM COMPACT CLASS A/B AMPLIFIER Owners Manual

Installation Guide

Preparation for Installation

Lists necessary tools and provides preparation notes before starting installation.

Installation Precautions and Mounting

General Installation Precautions

Outlines essential safety measures and procedures before beginning installation.

Mounting the Amplifier

Mounting Location and Safety Warnings

Critical Mounting Warnings

Highlights crucial warnings regarding amplifier placement and potential hazards.

Control Panel Functions

BATT+ (Power Input Connection)

Details the main power input connection to the vehicle battery.

REM (Remote Input Connection)

Explains how to connect the remote turn-on lead for amplifier activation.

GND (Ground Input Connection)

Describes the requirements for a proper ground connection for optimal performance.

Power Wiring and Signal Connections

Power Cable Selection

Power Wiring Details

BATT+ (Power) Wiring

Details the direct connection of the power wire to the vehicle battery.

GND (Ground) Connection

Explains how to establish a proper ground connection to the vehicle chassis.

Remote Trigger Connection

REM Terminal Connection

Explains connecting the remote turn-on lead to activate the amplifier.

Setup Adjustments

Input Gain Adjustment

Guides users on setting the amplifier's input sensitivity for optimal sound.

Speaker Wiring and Configurations

Speaker Load Requirements

Specifies minimum impedance requirements for stereo and bridged mono operation.

Speaker Wiring Procedure

Troubleshooting Tips

PowerBass Autosound Limited Warranty Policy

Related product manuals

PowerBass ATM 550.4

Preview: PowerBass ASA SERIES

PowerBass ASA SERIES

Preview: PowerBass ASA 400.1x

PowerBass ASA 400.1x

PowerBass ASA 400.2x

Preview: PowerBass ASA 1000.1Dx

PowerBass ASA 1000.1Dx

PowerBass ASA 1500.1Dx

Preview: PowerBass AutoSound ASA 200.2x

PowerBass AutoSound ASA 200.2x

Preview: PowerBass XAX 500D

PowerBass XAX 500D

Preview: PowerBass XTA 4000D

PowerBass XTA 4000D

Preview: PowerBass XTA 1000D

PowerBass XTA 1000D

Preview: PowerBass XAX 2160FD

PowerBass XAX 2160FD