The Consonance Basie Pre-amplifier kits were originally available from Diy HiFi Supply. The Mk1 was a SRPP based unit with a cathode follower output stage that could be modified to use other tubes. In my original build I eventually by-passed the cathode follower and used 2 x Mullard E80CC driver tubes making it an Anode follower.

This was Brian's first pre-amp kit for sale and based on commercial Consonance products at that time. The Mk2 was a new circuit design with a MM stage but in the same chassis and power supply section.  The Mk2 used 3 x Ecc81 and 1 x Ecc83 with 2 tubes used for the phono stage. This was a very musical pre-amp and much better sounding than the early Mk1 SRPP design which tended to sound clinical.

Below are the original build reviews of these kits in pdf format.

(Both Units SOLD)