PSW125 Humming / Vibration

maksimow

I've been having an issue with my PSW125. I have a Sony STN-DN850 receiver, and JBL Loft front speakers, and center channel speaker.

I've had the Sub for 3 years. No problems until lately. I started getting a humming / vibrating sound while watching TV or movies. I've switched out the cable to the sub. Both cables I've tried are high quality, and there had been no problem for the first 3 years with the sub.

Now that I've changed out the cables a couple of times there is a new problem. When I plug the power back into the sub and switch it to from Standby to either Auto or On I immediately get a quite intense loud sustained vibration. It is only absent when the sub volume is turned all the way down. If you turn the volume slightly up it appears and gets louder as the volume is turned up.

I'm connected using the subwoofer out/ right channel LFE method and the low pass setting on the sub is turned to LFE.

Any suggestions or ideas?

[Deleted User]

Hello,
Welcome to Polk's forum. In all likelihood there's a problem with the bass amplifier in the subwoofer. Do you live in the U.S.?
Regards, Ken

maksimow

Hello Ken, I am in Canada.

[Deleted User]

Hello,
In that case you would want to contact Walter Moser, the Canadian manager, his telephone number is 1-817-660-6601 and his email address is: Walter.Moser@soundunited.com
He's a good guy and should be able to help.
Cheers, Ken

lightman1

You wanna know why it's humming?




It doesn't know the woids!!!!


WooWooWoo!

littlewoodboats

Are these plate amps hit and miss when it comes to these types of issues? I have a PSW- 125 that seems to be working perfectly three years in now. I keep waiting to wake up one morning to turn on the tv and have it fail to report for duty. I have the volume set to about 40% leveled through the Outlaw at 85db as layed out in the Outlaw manual. Should I be doing something differently?

I have backed off of the LFE a few db as the windows rattle at full bore.