Question about Sunfire True Sub MK II Subwoofer
My sub will frequently produce a fairly loud hum, it seems to happen most often when it is called upon to deliver some truly loud low-frequency sound effects. I can make it stop only by unplugging it then powering it up again, but the next time it does some loud work, the hum is likely to return. I have tried making sure the power cord is grounded, and also tried floating the ground. Doesn't seem to make much difference. Ideas?
A reply to Soothsayer's request for clarification: My hum starts as a result of a loud, low-frequency "use" of the sub....but the hum does not seem to go away by itself, even hours later. I have not yet had the chance to access the sub's innards and try Dylan's suggested fix, but it gives me hope. I agree that Sunfire's repair fee seems excessive. Best of luck, let me know what you find?
Posted on Oct 01, 2008
I had this issue a few years ago and the power cable from one of the inner terminals had come loose. It was still touching but whenever the sub would really pound it would jump off the connection and then reconnect causing it to hum. It was the most annoying thing ever so I finally pulled off the amp plate (super easy) and you could clearly see the loose wire. I had to use a good soldering iron to put it back on since it's a pretty fat wire. If you're not under warranty anymore then pop the back off and see if that's the issue.
Posted on Sep 25, 2008
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:
Mar 04, 2011 | Sunfire True Sub MK II Subwoofer
Nov 25, 2010 | Sunfire True Sub MK II Subwoofer
May 10, 2010 | Sunfire True Sub MK II Subwoofer
Jan 07, 2010 | Sunfire Audio Players & Recorders
Aug 04, 2009 | Sunfire True Sub MK II Subwoofer
Sep 25, 2008 | Sunfire True Sub MK II Subwoofer
Mar 13, 2008 | Sunfire True Sub MK II Subwoofer
1,231 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: