Krell KSA100 vs Threshold 400A vs McCormack DNA 0.5

Steve is not doing that.  When I called Steve about updating the 18 year old mod. on my DNA-1 Deluxe, the first thing he told me was that if I sent it in they would have to replace the Driver Board as that is the part of the amplifier experiencing failure issues.  He offered to do more than that but said he could not repair the old driver board for reliability reasons, but that the board would be replaced by a new upgraded board.

Once the new board is in place you are good to go.  I went ahead and had the "Gold Special" upgrade done.  It sounds great and I have every expectation it will outlive me.

Some peoples mentionned that GAS Son of Ampzilla is a great amplifier.  As my DNA 0.5 will be repaired this fall or winter, someone offered me an ultra clean GAS Son of Ampzilla recapped. As I need an amp soon I'm tempted if it is really an amp alone in it's class. At least,(not like the DNA 0.5)  it can be easily repaired or upgraded by DIY. Seller wants $460 USD ($600 CAN) for it. Any comments ?Thanks

Good to know HiFi.
Is McCormack still in business with Conrad Johnson?
Apparently not. http://www.mccormackaudio.com/index1.html

@legarem: That Son of Ampzilla for $460 is an excellent choice! I own two of them! And I bought one brand new in 1977 - and stupidly sold it! Still a contender for "best sound per dollar"!

@legarem I'm wondering why you didn't follow the advice given to you in this thread.  I specifically told you in my reply...

"Just to be clear though with my recommendation. (Mccormack) is a "no-brainer" assuming you are getting it modded. As good as it was in stock form, the McCormack is past it's useful life and all the driver boards need to be replaced at this stage of it's life cycle. If you are looking at those 3 options for use in used stock form, I say the "no brainer" answer is to buy NONE of them. Get a much more current used amp or something new from quality budget suppliers like Emotiva, Parasound, etc."

I'm not sure why you would ignore that specific advice, but don't make the same mistake again.  There's no point in buying an old used amp at a super cheap price to milk in it's stock form for whatever useful life is left. 

As I said before, either get your McCormack modified or buy a brand new Emotiva that fits your budget.  Their newest generation amps are excellent and steals at the price. The modular construction and direct sales allows them to sell for far less than they would otherwise.  I have a couple of them myself (as well as ARC, McIntosh, McCormack and others), so I'm not just making this stuff up. You get a full warranty and tons of power that will work with any speaker.