Right now i have the Fostex HP-A4BL and an Audio GD R2R11 and even with the warmest settings on the Audio GD it can't reach the bass of the TH600
Do you mean a better amp? The R2R 11 is really powerful (3500mW/25 ohm) and is considered really punchy.
I don't think you can get any warmer than an R2R Dac with the Jumper set to warmer and in getting too warm you'll inevitably lose definition, so i've found the solution in this: https://dekoniaudio.com/product/dek...stex-massdrop-x00-th610-and-th900-headphones/
I don't know how long you've had and listened to your stock TH900, but, if you have been used to the overly mid bassy TH600 maybe it will take a while to get used to the signature of the stock TH900. The longer I have been interested in high end audio the more I appreciate a more neutral, more treble, less bassy signature.
I use the schiit Loki tone control for my 900’s. It works great with them. I set the 20hz knob at 1:00 for even a little more sub bass, and the 400hz knob about 2:00 for more midbass/lower midrange. Sounds good to me that way.
Haven’t listened to my th900’s for about 3 weeks. Soon as I put them on, I am instantly reminded why I bought them. They are truly a pleasurable and unique set of cans!
Yep, they’ve been out what, about 8 yrs now? Still haven’t heard another closed (semi open) headphone I like more