Please note that 300B tubes and speakers are not included. This pair amplifiers is slightly used (trade-in pair) with magic sound. We offer 12-month upgrade policy towards Sophia Electric higher model new amplifiers by paying the difference.
Sophia Eletric 91-01 300B single ended monoblock amplifiers could be the most magical sounding 300B single ended amplifiers in the market without spending over $20K.
Below is the highlight from Jeff Day of Positive Feedback's review:
"...I've enjoyed a lot of really, really, good audio amplification in my days, and from the best vacuum tube Hi-Fi designers in the world: single ended triodes with 45 tubes, 2A3 tubes, 300B tubes, 300B tubes interstage coupled to 845 tubes, and on and on; single ended pentode amps, hybrid amps, push-pull amps, solid-state amps, you name it, but I've never enjoyed the way an amplifier played music in my home like I've enjoyed this relatively inexpensive ($3500 a pair without tubes) Sophia Electric Model 91-01 300B amplifier design from Richard Wugang and his father Dr. DWU.
The Sophia Electric Model 91-01 300B mono amps make me get excited about the music coming through the speakers, they make me happy, and they make me want to jump up out of my listening position and dance about, or grab my guitar and play along, or in other words, to behave like a complete moonstruck musical lunatic. Nothing else has made the music and me come so convincingly alive in my home.
The Sophia Electric Model 91-01 300B mono amps are audiophile dream amps, they have great sonics top to bottom, bass articulation that is the best I've heard, and the SE 91-01 nails all of the nerdy audiophile things like soundstaging, imaging, sense of space, and transparency in such a beguiling way that even music lovers that don't give a rat's ass about audiophile-type sonics will appreciate its prowess. I recommend these amps heartily, and I'd give them my normal 'two thumbs up' endorsement, but that just wouldn't capture what these Sophia Electric Model 91-01 300B mono amps are capable of, so I've invented a new rating, the 'two hard nipples up' recommendation, which is the highest award I've given out to date. ..."
Jeff Day's Full review link: http://www.positive-feedback.com/Issue53/sophia300b.htm