[rainbowzootsuit]

Headwize used to be the place I'd hang out to discuss and enjoy DIY headphones and headphone amplifiers.

The site is now memorialized below but has a wealth of information.

https://headwizememorial.wordpress.com/

[CobaltFire]

It's been a few years since I went there, and now I'm sad to see it's gone.

Those reviews helped me get some excellent bang for the buck headphones years ago.