sofos

Responses from sofos

Pass Labs x250.8 vs tube amps
Nope, the placebo effect has nothing to do with this on a blind AB test. Topologies do matter (a lot), and distortion as well as harmonics which are more enhanced in some designs are both received and acknowledged by the human brain. The heat tha... 
Pass Labs x250.8 vs tube amps
.. and to avoid misunderstanding I would advise as follows: a) if you are a purist and would not accept a "fly on your sword" then it is obvious where to look b) if you want a plug and play solution which would give you the very good results in ... 
Pass Labs x250.8 vs tube amps
Hello all Have been building amps for 40 years and built/auditioned a lot of circuit topologies both ss and tube.   Re warmup time- it should not be more than 15-30 mins for tubes depending on the ambient temp and 1 hour for pure (very rare) cl...