Paradigm Seismic 12 works like new, no idea why

[Cos]

I had purchased a Paradigm Seismic 12 back in 2006 or so, worked great for a while then had a low level hum that never seemed to go away even after I sent it back to Paradigm for service.

After giving up on it, I boxed it up, put it in storage, went with GE T1s and never looked back until my current home theater.

I tried everything
1. Behind a cheater plug
2. Various surge and line conditioners
3. Event had a 20Amp Dedicated circuit installed

Hum persisted.

Fast Forward, in my new house
New electrical obviously 200Amp circuit with whole home surge protection
- Took the subwoofer out of the box when I was moving, tested, and now it is dead silent
- I did not change anything from last time, but now it works beautifully
- Not the best sub in the world, but pretty damn good, and its like I got a new subwoofer

I can not figure out what caused the problem in my old house, but it is so strange that it only took a new home to get my subwoofer to stop humming. Glad to see that my 1400 dollar investment was not a total waste, it only took 10 years to fully enjoy lol

 

[shadyJ]

A new house is a small price to pay to get a decent sub working correctly.

 

[Bucknekked]

A new house is a small price to pay to get a decent sub working correctly.

my wife will use that line of thinking and start asking for a new house. let's keep this under our hats

 

[slipperybidness]

I had purchased a Paradigm Seismic 12 back in 2006 or so, worked great for a while then had a low level hum that never seemed to go away even after I sent it back to Paradigm for service.

After giving up on it, I boxed it up, put it in storage, went with GE T1s and never looked back until my current home theater.

I tried everything
1. Behind a cheater plug
2. Various surge and line conditioners
3. Event had a 20Amp Dedicated circuit installed

Hum persisted.

Fast Forward, in my new house
New electrical obviously 200Amp circuit with whole home surge protection
- Took the subwoofer out of the box when I was moving, tested, and now it is dead silent
- I did not change anything from last time, but now it works beautifully
- Not the best sub in the world, but pretty damn good, and its like I got a new subwoofer

I can not figure out what caused the problem in my old house, but it is so strange that it only took a new home to get my subwoofer to stop humming. Glad to see that my 1400 dollar investment was not a total waste, it only took 10 years to fully enjoy lol

Dimmer switches or something else on the same circuit causing the problem at the old house?

Coax cable from the cable company (a common problem)?

 

[Яusty]

Moving the sub may have jiggled the sub. You might have a hairline solder fracture that returns.