Question about JBL ESC-300 Speaker
I just bought this as a used system, got home, noticed that the power plug has been changed to a 3 prong one with only 2 connections (earth connector has no wires attached). Anyways, turn it on and plug in RCA cables and it hums, tried to plug it into my computer via digital coaxial cable...hums. And now it hums constatnly with no cables attached.
Replace the plug, they most likely had a ground loop where it was plugged in and cut the common to get rid of noise. Replacement ends are easy to find at Home Depot, Lowes, ACE, etc. Try that first, if you still have an issue, post a comment and I can help you further. Hope this helps
Posted on Jun 21, 2009
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
TIPDon't use a normal cable or satellite program for this; you're about to disconnect the cable that provides the audio and video for your cable/satellite feed.
WARNINGOddly enough, this solution (surge protection) can sometimes increase the humming.
WARNINGIt is unsafe to use a two-prong to three-prong "cheater" plug on the subwoofer power cord to solve the hum problem. Even if the subwoofer came with a cheater plug in the box, it's REALLY not safe to do. Don't do it.
Sep 01, 2013 | Denon Audio Players & Recorders
Dec 06, 2010 | KLH PSW8100-8 Subwoofer
May 01, 2010 | Sony BRAVIA KLV-32U100M 32 in. LCD...
Jan 17, 2010 | ViewSonic VX900 19" LCD Monitor
Mar 15, 2009 | Bose Lifestyle 35 System
Feb 15, 2009 | Kenmore 62802 Electric Dryer
Sep 19, 2008 | Crosley CR248 Turntable
May 20, 2008 | Cerwin Vega LW12 Subwoofer
Jan 07, 2008 | Creek 5350SE Amplifier
Jul 13, 2014 | JBL ESC-300 Speaker
Jun 10, 2013 | JBL ESC-300 Speaker
236 people viewed this question
Usually answered in minutes!