I bought this sweet preamp direct from Abacus (Don, great guy) a couple years back, it has performed flawlessly. The build is superb, quality all the way. There's tons of information about the Aikido circuit, this implementation is about the nicest I've seen. The outboard power supply in combination with the Aikido circuit makes for a dead quiet background, a neutral fast presentation with excellent tone and soundstage. The remote controls on/off, input selection, and volume. It'll ship with a very strong balanced and matched quad of 1957 RCA/Conn 12AU7, long black plates, D getter, great tubes. $450.00 including shipping and PayPal, USA only! Feel free to ask any questions and thanks for looking.
Here's Don's (Abacus Music) description of the build:
3 inputs, one output
Remote controls on/off, volume, input selection.
12V trigger output.
uses four 12AU7 tubes.
Outboard power supply for ultra quiet operation
30 sec start-up output mute for safe operation with solid state power amps.
Highest quality parts were used - Kiwame, Holco, Allen-Bradley carbon
comps (gridstoppers), and Dale precision resistors, russian PIO coupling
caps, silver teflon signal wire, Nerve Audio RCA connectors, Carol
C-1310 power supply cable.
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