PowerBass ACA-240.2 - User Manual

PowerBass ACA-240.2

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ACA COMPACT CLASS A/B AMPLIFIER

Owners Manual

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

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

ACA-240.2

ACA-480.2

ACA-480.4

Table of Contents

Questions and Answers

B
Bethany ThomasAug 11, 2025
What to do if the PowerBass ACA-240.2 red status protection LED is on?
- C
  corey56Aug 11, 2025
  If the red status protection LED is on, there are several potential causes: * **Thermal protection:** This might be engaged. Ensure the speaker terminals have the correct impedance and that there's enough air flow around the amplifier. * **Voltage protection:** The voltage to the amplifier may not be within the 10-16 VDC operating range. Inspect the battery and charging system. * **Short circuit protection:** There may be shorted speaker wires or the speakers are operating below the minimum impedance. Check for speaker wires shorted to each other or the vehicle chassis.
U
ugouldAug 16, 2025
Why is there alternator noise with my PowerBass Amplifier?
- Z
  Zachary RodriguezAug 17, 2025
  Alternator noise that varies with RPM in your PowerBass Amplifier setup can stem from several factors: * Check for a damaged RCA cable. * Inspect the routing of the RCA cable. * Ensure the source unit has a good ground. * Verify the amplifier gain setting; reduce it if it's too high. * Check the speakers for a chassis ground short.
R
Rick MorrisAug 22, 2025
What to do if PowerBass Amplifier power LED lights blue but there is no output?
- K
  katherinevasquezAug 22, 2025
  If the power LED on your PowerBass Amplifier lights up blue but there is no output, try the following: * Check the RCA connections. * Test the speaker outputs using a known good speaker. * Substitute a known good source unit. * Check for a signal on the RCA cable with a VOM in AC position.
J
John LewisAug 29, 2025
How to fix poor bass response on PowerBass Amplifier?
- E
  erica46Aug 29, 2025
  To improve poor bass response with your PowerBass Amplifier, check the speaker polarity and reverse the connection of one speaker only.
M
Mr. Robert RodriguezSep 4, 2025
How to troubleshoot PowerBass Amplifier when power LED is not on?
- E
  ericjohnsonSep 4, 2025
  To troubleshoot a PowerBass Amplifier when the power LED is not on, use a Volt Ohm Meter (VOM) to check the following: * +12 Volt power terminal (should read +12 to +16VDC). * Remote turn-on terminal (should read +12 to +16VDC). * Ground Terminal.

PowerBass ACA-240.2 Specifications

General

Channel Configuration	2-Channel
Signal-to-Noise Ratio	>90 dB
Crossover Slope	12 dB/Octave
Bass Boost	0 - 12 dB
High Pass Filter	40 Hz - 400 Hz

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