Showing 2 responses by rickatwoodme

For what its worth, I have the EVO400 Integrated; now running KT150s, and Mullard tubes on the two front; it's glorious.

I spent a few weeks with the stock EL34s; and their midrange and holographic presentation is undeniable, but I prefer the extra "oomph" of the big KT150s; I didn't realize I was adding a space heater to my room but se la vie.

THIS is the sound I've been after for 40 years.. so beyond thrilled with the amp; also nice Im in SoCal so a trip to Upscale is only 45 min.. comparing to other amps its a no-brainer IMHO.. best bang for the buck in tube land. 
I went through a 'hate em/love em' phase with the tubes.. at first, the KT150s gave me the punch that was missing with the EL34s...  but I lost the holographic midrange. After a few dozen hours everything balanced out nicely; the midrange still isn't as lush as the EL34S, but its 85% there... with the added dynamics and bottom end that was missing. Kevin told me a few weeks ago, and I have seen, they really need some hours on them before you can judge. I also replaced the two main input tubes with Mullards and that was a huge improvement.... the only word of warning is 8 Kt150s is basically a space heater.. no joke. a LOT of heat comes off them. This is my bedroom system, and that may in the end be the deal breaker.