McCormack DNA 125

I actually regret selling that amp, it was damn good.  I would leave it alone, the money spent to buy that and mod it is $$$   others may disagree but for me I would leave it stock. 

@oddiofyl I agree, upgrades are pricey but I liked the sound so much in stock form I decided to take the hit and make it my forever amp.  Steve told me a while back the 125 is similar to a 0.5 RevB, I think. 

i have an smc modded dna 125 (parts and isolation improvements but without their gravity base) and it is just a superb amp - only thing is one of the improvements they insist on is bypassing the power switch so there is a teeny little thump when plugging in the iec - to some that can be disconcerting

the end result is a much improved amp than the original (which had a leaner tonality, a fine treble grain, and could be a touch sizzly)

the modded amp to my ear is tonally very very pure, fast but not at all strident, has tremendous spatial capabilities, and a dose of richness/fleshiness to voices and acoustic instruments, super clean transients - other than not having xlr inputs and a little sensitive to hum (easily manageable) it is the at least the equal to megabuck amps in sonics (but not the bling 😂)

I’ve owned B&K amps and I’ve owned McCormack amps. I’ll tell you right now, the performance is not even in the same zip code. You will probably want to pursue upgrades because of the age of the amp alone. But I did have an SMC modded DNA-1 deluxe (Gold revision) and it was a fantastic sounding amp. Years before I had a stock DNA-1 which I also liked very much. 

Did not realize how many of these amps got modded....but there ya go....  it is a great amp,    Enjoy 

I think the mods are so popular because they're from the original designer, are available at various quality levels...and they sound great...