KT 170

As an amplifier designer I can't wait to begin a new prototype. 

All who are upgrading make sure that you don't exceed your power transformer max current on the 6.3 volt buss. These tubes require 3+amps each.  The prospect of a build that will run 800 volts on the plates is awesome.  I will have to build matching transformers that can handle the 300 ma of current going to the b+supply. My current design is a little undersized for the 150s but in testing and a limited production has been reliable. This will be a game changer. I believe still that the best sounding amp I have designed has a pair of soveteck 6l6wxt+........ but we will soon see. 

Hi everyone, just curious if anyone is running the KT170s and their impressions here in 2024.  I have been running them since March 2022 on my Black Ice F35 integrated amp, and I am happy with them.  I keep the KT150s as backup, though I never really compared the two. The KT150s came with my amp, and I immediately upgraded them to the KT170s as these had more "power". 

I also notice that Kevin's Upscale Audio still does not carry them...

I have 2 integrated tube amps..,one with kt150s - the other with kt88s. 
I don’t think I’d want the 170s because from my ears the the kt150 is great but I don’t want any more power out of it. 
 

If your speakers need more than kt150s I would question your speaker choice or use mono lock tube amp.