Amplifier Gallery


Boards, clockwise from top left: Preamp PS/headphone amp; main power supply and protection; Mode control; time-delay relay driver; two power amps; preamp.


Behind the front panel. Headphone jack has an optical chopper switch to detect phone plug insertion.

Testing a power amp module. I convert my test equipment suite between RF and audio/instrumentation configurations as needed; there’s not that much room!

Oh, by the way, it sounds as good as it looks. If it weren’t for my hearing troubles (tinnitus) I would give it a more formal audiophile-style review. Dynamics are excellent, plenty of “slam” when driving my Thiel CS 3.6s, which are basically 2-ohm loads. And no clicks, thumps, buzz, hum, or anything else. Victory.