Question about JBL PB12 Subwoofer

1 Answer

I have a high pitch squeal coming from the subwoofer even with the input disconnected. The level is low but the pitch is like a varying whistle.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 11,361 Answers

You can have bad filter caps or the Class D module is going out. I mod my to fix shorted out Module, http://s807.photobucket.com/albums/yy352/budm/JBL%20PB-12%20mod/

Service manuals: Read them to see if you can fix it.
http://manuals.harman.com/JBL/HOM/Service%20Manual/PB10%20sm.pdf
http://manuals.harman.com/JBL/HOM/Service%20Manual/PB12%20sm.pdf

Posted on Jan 18, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

I have a 2003 Jeep Wrangler that has a high pitch SQUEALING sound when I release the accelerator. Any ideas what's causing it or how to fix it?.


I know i have the same problem, and i also noticed than when i open the Hood the whistle just stops, so i figure out it must be some air cycling in or out osmewhere, I found out my air intake connected to throttle body was misplaced a weird gap was left open allowing air to whistle. u might wanna check there

Sep 19, 2012 | 2003 Jeep Wrangler

1 Answer

Emits high pitched whistling after unit runs for 30 minutes


Sounds to me like the bearings are going bad in the motor. The hotter it gets the grease breaks down and the squealing starts.

Jun 30, 2017 | Haier CPRB07XC7 Portable Air Conditioner

1 Answer

My KLH subwoofer (model ASW8-120B) has stopped working and emits only a low-pitched hum.. I have tried hooking it up using the ''high-level'' 2-wire inputs as well as the ''low level'' RCA plug inputs....


It's unlikely that you can find a shop to repair it for less than the replacement cost ($75ish for a comparable KLH or Sony sub)

If you're up for doing your own soldering, here's a solution for the same problem with the same amp.

If this helps, please hit the "thumbs up" for me!

Jun 26, 2010 | KLH ASW10-120 Subwoofer

2 Answers

1994 ranger in 3rd and 5th gears, it has a loud whine to it.


Mine has a high pitched whistle at high rpms and I can't figure it out. But mines def not the tranny. I'm thinking it's a vacuum line somewhere. It's a 97 2.3l manual. The colder it is the louder...

Apr 12, 2010 | 1994 Ford Ranger Supercab

1 Answer

High-pitched squeal/whistle noise from range


Noise went away by itself. No root cause found. Please remove this posting, thanks.

Dec 04, 2009 | Maytag MGC6430 Gas Cooktop

1 Answer

1994 nissan pickup high pitch squeal when driving


it could be the engine belt or the brakes are bad listen to where it coming from and you will know which you have to change

Aug 18, 2009 | 1994 Nissan Pickup

1 Answer

Van brakes squeal/whistle even when stopped


Sounds to me like a dry, loose or worn serpentine belt. With the motor idling, lightly spray the serpentine belt as it's spinning with WD-40 or other oil based lubricant (Don't spray near the alternator). If this doesn't work, turn the mortor off and check the tension and for cracks or worn spots. The brakes will not squeal when you are completely still.

Jun 11, 2009 | 1999 Chrysler Town & Country

1 Answer

Jbl sub 150


Make Sure you have your Audio cables Connected right. Meaning Red with Red and White with White.

Aug 05, 2008 | JBL 5.1-Channel Home Theater Speaker...

1 Answer

Occasional 'whistling/whining' from back of TV


I wonder if there is enough air circulating around your equipment?? My DVD recorder makes a sound unless I open the doors on the cabinet that contains all of my equipment. The cable company says it is a fan to cool down the units.

Jan 30, 2007 | Bush WS6671 28" TV

Not finding what you are looking for?
JBL PB12 Subwoofer Logo

Related Topics:

747 people viewed this question

Ask a Question

Usually answered in minutes!

Top JBL Audio Players & Recorders Experts

Michael Edwards
Michael Edwards

Level 1 Expert

60 Answers

 Grubhead
Grubhead

Level 3 Expert

5047 Answers

Vito Vacirca Jr.

Level 2 Expert

140 Answers

Are you a JBL Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...