Manufacturer Repairs? What is a reasonable time?

I think its fair to allow a vendor to revise their initial time estimate once or twice, but more than that would be a red flag for me. Generally, three strikes your out is a pretty decent rule....

To some vendors, good customer service is a cornerstone of their brand and business model. Others, perhaps not so much. Some might operate under the assumption that the customer is locked into them as the only qualified service option and has no recourse other than to do things on their terms. It all depends....

I say it's time to get a rope.

Or as Slappy would suggest, "an old board with a rusty nail in it".

This is nonsense, would you be so patient if your car needed repairs? Doesn't this manufacturer realize that the rest of the money spent on your system might be in limbo too?
The couple of times I needed work done for me by Thiel over the past couple of decades, took no more than a couple of days. That's how it should be.

I really don't know what the problem is here, but something doesn't sound right about this whole situation. Maybe the business is in some type of trouble. Its possible they may not have the resources available (parts, labour or both), to fix the amp. If it were me, I would do whatever I had to do to just get the amp back. I would rather pay someone else to fix it rather than watch the manufacturer close down, or something, and loose the whole thing.

Recently I sent in an amp that I had shorted the transistors out because the speaker leads were touching in the back. Posts to close? I don't know. Anyway I called the company and the owner answered and I told him the situation and asked him how long should I be looking at to get it repaired. He said 2-3 weeks. It was 3.5 months later. I think I was patient. I know we live in a fast food era, "I got to have it right this second!!". I will say he returned it promptly after it was repaired which I appreciated. It is a great product and the owner of the company a decent enough guy. I would like him or his company to stay around. So I won't say who but I do think that was out of line with what is reasonable and what normal people would expect today. I am sure he has to deal with other people doing things for him. So I think it reasonable he give me a better time frame. Just saying. So I am not much help just thought I would chime in.