Starting a WHAMMY HPA Build

BTW, the fan was never used but added in the original design as I thought the car would be a mule for several amps projects. I was so damn happy with the Nelson Pass design, I stopped there and that was 15 years ago.

I’m expecting the WHAMMY parts to arrive in the next couple of days, and can’t wait to start the build. Pics Below:

Last big DIY project was cloning a Pass Labs Aleph30. Build 100% from scratch including the case work.

Looking forward to dabbling with headphones again. Lots of guys are rolling different OP amps for this design. Normally I avoid OP amps like a plague for hifi, but they seem to work well at low power levels for headphone circuits with great cost and effort savings. I’ll likely built it, check it out and pass it along.