SET amp comparable to First Watt SIT 1?

I’m currently planning to change my speakers to high efficiency horn from modern high end speakers (B&W). The speakers would be Volti horn speakers.

For amp, A friend of mine has First Watt SIT-1, which sounds great to my ears, but I have always been interested in tube SET, especially 300B. The problem is there are too many choices around, and I have read several online reviewers stated that 300B amps don’t sound as good as First Watt SIT 1, except extremely expensive ones with NOS WE300B.

Any suggestions?

My budget is around 7-15K. I don’t mind second hand ones, but I wish I could compare it with my friend’s SIT 1 before I decide to take it or not, so second hand unit is probably not an option.

tmare, if considering 300B the Sophia Electric amps are ridiculously good for the money.  There are some terrific options like those at realistic price points below your stated range.  I learned the hard way it's not biggest $$ = Best amps when it comes to SET.  Happy to discuss offline if you'd like.  Shoot me a PM.


P.S.  Charles is wise  :-)

arthursmuck, thank you for the recommendation. I'll put Sophia Electric to my list.
If you want the clarity, quietness, speed of the SIT-1 with superior tonality and spatial presentation in SET, an Audion amp is perfect, and I have to say best.

In your price range you can choose from a simple 300B stereo power amp at $5.5K, up through $18K and any choice would best the SIT-1, by varying degrees. Since you are interested in 300B and alternatives, the DUO is interesting for you at $6K as it can run 2a3, 45 and 300B at your discretion. But you can trust you'll get excellent sound from a 300B, so given your price range, stepping up to the Golden Night monoblocks at $10K/pair is the sweet spot. 10w each amp, all silver wiring, wide-band OPTs. These amps ship with JJ 300B tubes. Put them aside as spares and spring for a pair of KR 300B balloon glass. That will give you high integrity in the bass region where so many 300B amps fail. Midrange tonality, dimensioning and detail are beyond reproach. Top end is extended, spacious, harmonically legitimate and top-to-bottom speed and dynamics are consistent (and *fast*).

There are PSET alternatives, PX25 variants in the line, and 845 monoblocks. If you want plenty of dynamic headroom, the $14K/pr. Black Shadow II 845 SET monoblocks and the $18K/pr Golden Dream 300B PSET monoblocks each output 24 watts. The 845 has a ton of shove but you don't absolutely need it with the Voltis. The 300B PSET Golden Dreams have more power than you need but that amp is musically gorgeous, harmonically complete and full of realistic nuance, so the circuit is worth the overkill.

Very insightful comments and again another excellent recommendation regarding the Audion line of SET amplification . What do you think of the suggestion above for lncreaed watts via higher power OTL as a perhaps better alternative for the Volti speakers? I believe either path can be sucessful. I’m admittedly personally drawn to the full harmonic qualities and nuance  of well executed SET that you referenced. Many roads lead to Rome.