Low SET versus High SET


Low powered SET tubes:
2a3, 300b, 45 and 50.

High powered SET tubes:
32b, 52b, gm70, 845 and 211

Are there any generalities about the frequency output ranges and sonic characteristics (not power output or consumption) that can be made about low and high powered SET tubes?

What is your favorite high powered SET output tube?

(I'm assuming all are used in SET topologies into a speaker load appropriate to their power output). The question was inspired by the spirited debate about low power tubes in the SET v OTL thread.

Let me know your opinion. Thanks, Jeff
jj2468

Showing 1 response by onemug

The 300b is my favorite tube but I really like the extension of the 2a3/45. My wish came true (I didn't know I had one) when I got a high eff/easy load speaker with an active x/o. I run a 300b on the mid/woofer and a 2a3 on the tweeter. I initially ran a 300bxls on the low and 300b on top and it was nice but the 2a3 on top is noticably better.

The 845 is my fav high power SET tube.