Mapman, From your other posts i know you use a computer as a source. Great for a multi system person. Sounds like you need a tube headphone amp, preamp combination. Maybe one that includes DAC. I am thinking this is what I need as well. One way I found around the DAC issue is to use a HRT music streamer connected directly to the inputs of my Schiit Vahalla via dual male RCA connectors I found on Ebay. The Vahalla lacks pre outs however
Hi Mapman
If your looking for a piece of kit that fits the above bill you should (if you can) audition a Quad PA One headphone/preamp/USB DAC it would fit your computer audio set up excellently
Retails in the UK for £1200 new, there's a "open box" on e bay for £750 which in my eyes is excellent value for money.
Its been reviewed very favourably in both of the UKs leading hi fi magazines (HI FI World and HI FI News)
I don't know of its availability in the US but it has transformed my headphone listening. I use it with Seinnheiser 800s and Audio Technica W5000s. I also own the considerably more expensive Bryston Headphone amp and the little Quad kicks its Butt
Cheers
Mark