My UFW-12 has been part of my rig for about a decade but recently I'd been having some ground hum issues and so I had turned it off since I hadn't had time to test out the problem. Well this week I bought a new Marantz AV7703 pre-amp so I decided to rewire my home theater rig to eliminate a lot of old cruft wiring and see what I can do about the sub.
Unfortunately, I'm come to realize that the UFW-12's amp is likely blown. It's nice and quiet (save a little transformer hum) but apply any input to the LFE or left/right ports end up with a very loud buzz from the driver. The power light usually turns red to a fault mode and i have to shut down the amp. Nothing i tried in terms of electric power, swapping sub cables or using a different receiver made any difference.
Since kevin repaired the sub's amp a while ago (and did some upgrades), I'm thinking it's probably not in my best interest to have it repaired again unless he or Mark can think of something easy. I was wanting to eventually replace this sub in my home theater rig and place it in my two channel rig in my living room. Now, it just looks like it'll be scrap.
I believe Kevin could replace the amplifier with a brand new one modified appropriately for $450-500 delivered. This would be a direct drop in.
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