Hello Pani, just ordered & received my 91-01. I still have only around 50 hrs on them & can't comment much on the final expected sound. I use them with Canterbury's which are 96db. No issues with the volume at all & they sound quite adequate. Pls. note I don't listen very loud mostly around 80 - 90 db in 30 x 16 ft room. So far in comparison to other 300B amps I have heard the Sophia' s sound quite dynamic with authoritative bass control. I am really hoping they will be magical as Jeff Day has commented; I can let you know in a few weeks time when they are fully run in. So far they sound very positive & heading in the direction I am hoping.
About the build quality - they feel extremely well put together. I peeked under the hood very neat & solid looking as most other high end equipment I have owned. Give Richard or Sue a call & I am sure they will be able to discuss the quality of the parts used.
I also own a Mcintosh MC275 which I have tried on the Canterburys. While it sounds great (amazing amp!) it's SET 300B for me all the way! I think Tannoys have great synergy with 300B. I am sure Jeff would not stake his reputation on this relatively cheap amps compared to the Shindos, Lebens & other many many amps he has reviewed :-) Best of luck in your search.
About the build quality - they feel extremely well put together. I peeked under the hood very neat & solid looking as most other high end equipment I have owned. Give Richard or Sue a call & I am sure they will be able to discuss the quality of the parts used.
I also own a Mcintosh MC275 which I have tried on the Canterburys. While it sounds great (amazing amp!) it's SET 300B for me all the way! I think Tannoys have great synergy with 300B. I am sure Jeff would not stake his reputation on this relatively cheap amps compared to the Shindos, Lebens & other many many amps he has reviewed :-) Best of luck in your search.