Personal Preamp Evolution.

1) Pre-amp stage of an Arcam Alpha 7R integrated

2) Musical Fidelity A308

3) BAT VK-31SE

-looking at that list, those are 2 very large steps

First, Kenwood KC-106 From 1987-1997
Then system broke down, and got a crappy receiver.
2. Kenwood KC-206 with remote from Nov.1997-March 1999.
3. Kenwood Basic C-2 From march 1999-July 1999
4. Yamaha CX-1000 Multi-voltage July 1999-July 2003
5. Adcom GTP-600 (10 steps back in sound and control
quality). Sept.2003-Jan.2005
6. Pioneer Elite C-91 Jan. 2005-present

1) Onkyo 304 RS
2) Audio Research LS3
3) Krell Krc 3
4) Eastern Electric Minimax
5) deHavilland UltraVerve

David Hafler DH-101
Lazarus tube pre amp
Klyne 6lx3p
PSE hl-1
Span of 22 years.

Rogue 66
BAT VK-31SE
Rogue 99 Magnum
Audible Illusions 3a
EAR 864P
Cat Ultimate v1
Hovland HP100