psychnurse

Final update: Just took the optical cable out of the TV and plugged into cable box optical out and boom. It's the soundbar, 36 month warranty claim incoming.

On the warranty site its says 3 years warranty of the woofer, does that help? http://www.klipsch.com/Warranty-Active-Speakers

Update: I am now convinced it's a Samsung TV issue. I connected in a small Sony TV to the sound bar, via optical cable. 3 hours and not one thud/boom. Within 10 mins of reconnecting Samsung 2 booms. Looks like the firmware has done something to the external speaker setup. Its the same sound if you turn an amp off and you get the bang through the speakers. I have set the TV to use TV speakers and will see how that goes. This all coincides with a Samsung firmware update 3 weeks ago.

The only thing I have changed is a firmware update on the Samsung TV, but over the past year I have done about 6 of them with no adverse effects. I am just testing on another TV to see if I get the same issue, will keep you posted.

Hi, it can happen with any sound, TV/music. It's not a musical note more like a "low thud". So I could be watching the news then it can happen. Usually gives anyone in the room a fright. I have the setup coming from my TV via optical cable to the sound bar.

Just checked the Warranty, 36 months, I'm in luck. Thanks

Hi, I purchased the SB 1 sound bar and sub in August 2013. In the past three weeks approx every hour/ 2 hours the sub is making a boom sound. The boom is just a split second. I wondered if appliances might be causing this but even at home with nothing else on it still does it. I have turned sub off and sound bar to restart them, but the boom continues. Has anyone else experienced this issue?