FS: Cambridge Audio 640P Phono Preamp with AudioKarma mods including replacing all capacitors in PS and MM/MC board with Panasonic FC caps, replacing op amps with sockets and recommended op amps AD823 input and LM4562 output. Installed Schottky fast diodes and upgraded walwart power supply. Unit is in very good used condition and hits way above it price point.
The Audiokarma Hypnotoad mods took the preamp to a whole another level of performance. You can search Audiokarma 640P to read all the reviews and comparisons to preamps costing more than $500.
Only selling cause I built a much more complex diy phono preamp. Thanks...
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