Question about Polk Audio PSW250 Subwoofer
Humming noise on your sound is not due to your speaker but it is come from the amplifier.
I've encountered a lot of this problem that is caused by the electrolytic capacitor.
If you are a technician first locate for a dry joints on the board and then resolder it using your soldering iron and a high quality soldering lead. Resolder not only the capacitor but also around the output I.C.
If nothing happen then it is coming from your output I.C. sometimes it was leaky/shorted which produces a humming noise but first do the the above mentioned instructions before isolating the defective output i.c.
Posted on Jan 03, 2011
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.
Posted on Jan 02, 2017
Tips for a great answer:
Jan 11, 2015 | Polk Audio Psw111 Subwoofer single, Black
Jan 05, 2015 | Polk Audio RTi100 Main / Stereo Speaker
Jun 17, 2011 | Polk Audio PSW250 Subwoofer
May 15, 2011 | Polk Audio PSW111 Speaker
Register and download the manual for free at retrevo.com
Disconnect the input(s) and see if it hums in the absence of an audio source. A bad audio cable shield or unwisely-routed audio cables will allow entrance of unwanted signals from external power sources, magnetic fields, even dimmer-controlled track lights. Sometimes, simply reversing the orientation of the ac power plug can eliminate humming.
Feb 27, 2011 | Polk Audio RM6750 System
Dec 24, 2010 | Polk Audio PSW250 Subwoofer
Jul 16, 2009 | Polk Audio PSW-303 Subwoofer
Oct 24, 2008 | Audio Players & Recorders
947 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: