Tube pre-amp for Bryston 4BST?

I've tried a few preamps with my Bryston 3bst..........Bryston BP25, Bryston SP1, Sim P3, Sim P5, a Marantz pre, some EAD stuff, some Krell stuff, and some other cheap stuff, but the COPLAND 301 MKII blew everything away. More soundstaging and far more detail,presented in a smooth liquid way. So many of my unlistenable CD's are now listenable. The Copland is very synergistic with Bryston gear......more so then...ahem.... Brystons own preamps, which seem to enhance digital glare. The Copland can be bought used on Audiogon for about $1000 used, and is competative with amps costing upwards of $7000us......no kidding! The bonus is you can tube swap and the Copland has a marvelous MM board built in if you want to get into vinnyl.
dudeaudio

EAR 834L tube line stage (black $1295, deluxe gold $1595) is another good option. Also I second Dudeaudio on the Copland 301MK 2 as this is a killer tube preamp with decent phono stage. Blue Circle BC21 (6SN7 based) sounds wonderful and works well with 3B-ST but noisy when matched with 4B-ST (DC offset problem). The new BC21.1 ($1650 retail) is equipped with 6922s and could be a potential good matchup with Bryston amp.

I would go with a Copland as well- with Bryston and with almost any other amp as well for that matter. The 301 mk l or ll are that good. The preamp is seriously undervalued and priced. They outplay preamps costing 5 times as much. There is a reason that UHF magazine uses the Copland preamp for both of their reference systems- they could not find a better preamp regardless of cost.