Don’t buy used McCormack DNA 1990s amps


This is a public service announcement.  There are some yahoos on other sites selling 1990s McCormack DNA amps, sometimes at ridiculous prices.  While they’re great amps, and I happily owned a DNA 0.5 RevA for 20 years, they’re all gonna fatally fail.  Why?  Because their input board is at the end of its useful life, and when it fails your amp is dead and not repairable by anyone — not even SMcAudio.  It’s a boat anchor.  The only option is to sell it for scraps or get an SMcAudio upgrade that’ll cost around $2000.  Given my love of my amp I chose to do full upgrades given what else I could’ve gotten for the same same price and just got it back and will forward thoughts if anyone cares.  But the purpose of this post is to warn off any prospective buyers of a circa 1990s DNA amp that it’ll fatally fail soon, so unless you get a great price and plan on doing the SMcAudio upgrades just avoid these amps on the used market.  You’ve been warned. 

soix

@soix - you cannot say that the board cannot be repaired by anyone.  Do you do repair work yourself?  Any product can be repaired unless the parts cannot be identified or there are no replacement parts available.  That being said, you do not have to get a new board made, you can simply made the part point-to-point wired and get rid of the board altogether.  But you need a competent repair person like we do.

@bigkidz Due respect for your skills and knowledge that I’ll never have, but I don’t think I said the board couldn’t be repaired by anyone.  In fact, Pat told me people had repaired them by soldering in the “cracks” in the board but that the board would just fail soon after as other “cracks” appeared.  The point-to-point solution makes a ton of sense to me, and had I’d known you could do such a thing I’d surely have contacted you, but what would such a repair cost?  Whatever input board SMcAudio uses in their upgrades should last 30+ years along with all the other parts upgrades and Gravity Base I got with the rebuild.  Sounds like you think I did the wrong thing, so just wondering what my other options would’ve been or what you would’ve done?  Very honestly curious of your thoughts. 

@fsonicsmith Very interesting about the power cord thing, and what a classic pic of The Speaker Company!!!

@soix I wouldn't think twice about having had your amp rebuilt by SMC.   What could be finer than to have what is essentially a brand new amp with all new, better and modern parts installed by your amps original maker?  I don't actually know why you would even think otherwise.

In fact, I had my original Museatex Meitner mono amps rebuilt exactly the same way by a person who worked with Meitner, only the case and transformer were reused.  I love it.  One of the monos had failed.

And Happy New Year!

@soix I was responding to you original post "Because their input board is at the end of its useful life, and when it fails your amp is dead and not repairable by anyone — not even SMcAudio."  But I am always available to help anyone who needs repair, upgrade, modification or if someone needs something build for them.

 

Happy Listening.

@dmader48 

"By the way, I decided to let go of the TLC. Pat had clients who were eager for it and so I sold it to SMcAudio for $450; a fair deal. Now some other lucky person has an upgraded TLC which I'm sure makes them very pleased!!" 

When did you turn the TLC over to SMc?   I might be that lucky person.  SMc did the full monty upgrade on a TLC-1 that I purchased from them some years ago.  It is the black one pictured in the middle of the stack of upgraded equipment on their home page.  Steve said my upgraded SMc TLC-1 Signature Edition sounds "very close to the VRE-1 preamp." and I am not surprised.