Push pull 300B amplifiers


Any opinions on this topology compared with SET 300Bs or push pull KT88/EL34s (my only point of reference)? Any reason push pull 300B amps not more common?

Am considering the Canary 301 Mk2 or ASL AQ1010DT for 90 db easy load speakers (Equation 25). Good idea?

Any thoughts appreciated.
nzera
Tomryan,

I am using a Bruce Moore Dual seventy amp. This is one of the best sounding tube amps I have heard.
One of the more powerful Air Tight tube amps makes around 80 watts and has had good reviews. They sell for under 3000 used.
I am considering to buy the Canary CA301 MKII (PP300B amp)(22wpc). My speaker is the Focus Audio FS888, it is a big speaker with 90db efficiency. Do you think the 301 has sufficient power to drive it? I need some help. Thank.