Ask Tiemen on HF for advice on German Maestro. He used to be about AKG and Beyerdynamic until German Maestro launched the 8.3. Maybe Solderdude has some measurements somewhere.
The price is jacked up on these now and look at these.http://www.stereophile.com/content/sony-playstation-1-cd-player-measurements
The PS1 hack is a total urban legend. I've read reviews comparing it to real quality transports of its day and it got crushed. There's even an old Stereophile review of it where I think Atkinson even measured it. It's not even flat and had other serious issues. Don't waste your time. The Ps1 hack is just more vintage audiophool internet garbage mythology like the DT48 and other unobtanium stuff that was really just crap to begin with.
Any suggestion of a crazy basshead (C)IEM? Sonically as close as TH900?
My horn mod of the T50RP is for bass heads : http://t.co/8AiFewonmr
Hd800/t1/lcd2; what would be a good 4th can that isn't stax/hifiman? I was thinking maybe ad2000x and/or k812?