Sonic atributes ultralinear vs tetrode vs pentode


What are the sonic attributes of and amp running in Ultralinear vs tetrode vs Pentode. Looking to get a new amp, but live in a rural area can't audition them all. I don't like what I have heard from Ultralinear amps, too hard sounding for me. A lot of new pentode amps on the market, can't audition any. Why pick one over the other?
Thanks
Mike
128x128brm1

Showing 1 response by ths364

Do you mean "triode" vs. pentode? It would help to have more info in re: what speakers, size of room etc.
Ultralinear uses taps on the output transformer to help broaden the frequency response (bandwidth).
Triode/ Pentode refer to the number of elements inside the tube that perform the amplification.