Issue with Krell KSA-250

Thanks for the response. After I posted this message, I saw on Krell's FB page that they had essentially closed after the death. It looks like they are slowly opening up again, but I'm guessing there is a backlog, so it may not be the best choice to send it to them.

Thanks so much for all the feedback!

I have taken the cover off to take a look inside, but I don't see anything immediately wrong or smell anything out of the ordinary.

I do have a large power cable, and I tried re-seating it both in the unit and in the wall. It didn't stop the issue.

I haven't added any equipment, but this is 100% something wrong inside the unit. I really wish I could post the video! That would make what I'm trying to describe much clearer.

I've found a place in Chicago that said they work on Krell equipment. It's about a 75 minute drive, so that will be preferable to sending it off via freight both from a cost and a potential damage standpoint.

I will not be turning it on again.

I don't know if the forum will allow me to post a link, but I'll try. Here is a video of the issue:

http://www.stateofgrace.net/krell.mp4

Thanks!

@jayctoy Do you know of any other reputable shops in the city/'burbs? I know Stereo Rehab is well regarded, but their turn-around times can sometimes run into the 3+ month range. I'd like to get my amp back a little quicker than that. Midwest Audio is closed as far as I know. Not sure where else to call. Any leads would be appreciated.

@invalid This is a KSA-250.

Thanks for all the advice! I ended up taking it into Stereo Rehab in Chicago and the experience could not have been better! Casper obviously knows what he's talking about. Turns out it is a front relay. No problems with the caps or transformer. He took me through the whole unit, explained what was happening and gave me a reasonable estimate to fix it (cheaper than I thought it would be). Just an all around great experience. I should have it back in about four weeks.

Thanks,

Blake

@dclone Thanks for all the excellent information! So glad I started this thread. I hope others can benefit from it as much as I have!

I appreciate all the suggestions on how to make modifications to the unit, but I prefer to keep it as designed, even if there are a few minor flaws. I can tell you that Casper at Stereo Rehab has fixed these (and other Krell models) before and knows them inside and out. He was very helpful and I can't say enough about their service and knowledge. Here's what he listed as the repair:

"Krell KSA-250: service. Thermally damaged standby and relay supply dropping resistor replaced (metal film flame proof, 2w);standby primary filtering
replaced (105', 450v); thermally damaged front end supply filtering replaced (both) including armature supply rail and stand by pre-regulation supply rail (all fresh
Nichicon, 105'). Operating as designed."