Wow so much news on the Spectron, I have been out of the loop for a time.
I got my Spectron III SE MK 2 V-cap/Bybee SE broken in now am getting into the critical listening.
I am using my H-Cat pre amp and comparing Spectron to BEL 1001 MkV mono block set on Usher 718 BE and Adagio Jrs for now.
My SP-Tech Revelation MR1 MkIII will be in this fall.
To start, I must echo the above.
I have never heard a purer unrestrained reproduction of the recorded input.
CD Denon 3910 modified Upgrade Co., Soundstring cables/cords.
With the Tremendous Increases going to mono block and the simplified set-up compared to verticle bi-amping I also concur that as the way to go.
UMMV,
Rod
More to come,
And a 2nd to go mono too!
Rod