HiFi Kit Building- have you ever built any hifi gear?

Built Audio Racks from as far back as the 90's, where Woodturners were commissioned to produce the turned parts and Stone Factories were used to produce the Shelves.

My last equipment support, specifically created to support amplification, has utilised a Granite piece weighing in at close to 300Kg  

Okay so I'm dating myself here.

In days of yore I built a Dynaco Quadapter (Remember "Quadraphonics"?) then a Dynaco PAT-4 preamp. And finally a pair of Hafler DH-220 kits with the optional bridging kits to turn them into monoblocks at the flick of a switch. (aka DH-222) A nice clean 450 watts into 8 ohms...

Happy listening.

Built a Bottlehead Crack headphone amp and a pair of Zigmahornet speakers. No longer have any of it. 

Yes. Stated with a Hafler dh500 modification, then rebuilding my old Maggies' crossovers and to a whole preamp (tubes for hifi sp14)  Best result, I've learned what the components do and have started modding them for my taste. For 3xample, adding a remote volume control to the preamp. Next step, the GR Research xoxer mod for the Maggie's. 

I started with a Heathkit multiband radio, then I built almost everything David Hafler kit and the last kit I built was the Dynaco Stereo 400 with the meters (of course).