That is so weird that you posted your previous amp , as I went from a 2140 which is a great amp to the DNA 125 which is much better in my opinion. The 2140 was a back up amp. I decided to sell my tube amp at the time and the 2140 was doing fill in duty. The 125 is technically a Steve McCormack design , sort of but it was built when CJ acquired McCormack. It was built in the CJ factory. 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. Good amp