ServiceNews Article
May 13, 2015
B15050B Version 1
Poor Sound Quality; Weak Volume from the Front or Rear Speakers
AFFECTED VEHICLES
2007−14 MDX, 2007−15 RDX, 2005−12 RL, 2004−14 TL, and 2010−13 ZDX
EDITOR’S NOTE: This article replaces “Poor XM, CD, Aux Device Sound Quality; Weak Volume From Speakers,” posted in February 2008.
Dolby PL (ProLogic) II can create simulated surround sound from an audio signal that’s recorded with two-channel stereo audio sources. It’s designed to work with sources from the audio system (CDs, XM radio, DVD audio, etc.) as well as auxiliary devices such as an iPod, iPhone, or USB flash drive.
Depending on the audio source, sometimes there’s not enough info imbedded in the audio signal for the PL II to properly process things. As a result, clients might complain of poor sound quality or weak volume from the front or rear speakers.
If you get a vehicle in your shop for this sort of problem, check to see if the PL II is turned on. You’ll see an indication in the audio display if it is. The exact text for that indication and its location can vary by model and trim level, so, for details, see “Adjusting the Sound” in the owner’s manual.
If the PL II is turned on, ask the service consultant to have your client demonstrate the problem. If that’s not possible, try duplicating the complaint as best you can.
Now, turn off the PL II and see what happens. If the problem goes away, have the service consultant explain to your client that some things may sound better with the PL II turned off. If the problem is still there, see the electronic service manual and continue with normal troubleshooting.
- DIMENSIONS: 10.43" x 9.21" x 2.25", WEIGHT: 4.37 lbs
- SPECS: Monoblock, Class A/B, 2Ω Stable, MOSFET Power Supply, 1100 Max x 1 @ 2 Ohms, 550 Max x 1 @ 4 Ohms
- SPECS CONT'D: Low Pass Filter, Bass Boost, Input Sensitivity, Illuminated Logo, Thermal, Short and Overload Protection Circuits, Remote Subwoofer Control
- INPUTS/OUTPUTS: RCA & Speaker Level Inputs
- WARRANTY: BOSS Audio Systems provides a powerful 6-year platinum online dealer warranty so long as the purchase is made through Amazon.com. We strongly encourage professional installation of this product to ensure proper and safe functionality
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
- 23% Increase of Thermal Mass Per Square Inch
- Small Chassis Design
- OEM Vehicle Integration
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
- POWER: Maximum Power Output of 1500 Watts at 2 Ohms into one channel. MAX Power Output of 750 Watts at 4 Ohms into one Channel. This amplifier is designed to run your subwoofer(s) giving them the power that they need to perform as they were meant to
- HIGH LEVEL INPUTS: Speaker level inputs are commonly referred to as high-level inputs. Speaker level inputs will be used to connect the AR1500M to your factory radio or an aftermarket radio that does not have low-level (RCA) inputs
- LOW LEVEL INPUTS: Line level inputs, also known as RCA inputs or low-level inputs, use RCA interconnect cables to link the AR1500M with the source unit. Most aftermarket radios have multiple pairs of RCA outputs that can connect to multiple amplifiers
- LOW-PASS CROSSOVER: A low-pass filter is an electronic circuit that removes all the notes below the filter's frequency setting. You will use the Low-pass filter to primarily keep high notes out of your subwoofer(s)
- SWITCHABLE BASS BOOST: Switchable Bass Boost allows you to boost the low bass +18db.
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
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