A New Amplifier Build and Speakers / Listening Room Update

Описание: I'm taking a detour and making a 2 channel class AB amp to power my subwoofers. Since I already have the amp boards I designed, made and tested10 years ago, the bulk of the project will be building the chassis / case.
The transformer is a 540VA toroid that puts out 102VAC CT, and that translates to around +/- 73VDC. I may switch this for one with a lower voltage, if I have one that's big enough.

The amplifier circuit design is based on the Luxman M-02 folded cascode. Of course, all of the very excellent transistors that were available when that amp was first designed are now obsolete and long out of production, so I had to find suitable modern replacements for them. But that was 10 years ago and even some of the ones I used that were available then are obsolete today. I'm pretty sure I have enough of the ones I used originally to complete the second board to give me a stereo pair.
I do need to make the power supply, but that is fairly simple.

The chassis will be made entirely from 1/8" thick aluminum and that and the heatsinks shown in the video should provide enough cooling.

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