Benchmark LA4 $2500 + $100 remote. They have a 30 day home trial. Only thing is that you will now hear only your source, amp, speakers, not the preamp.
I used to own the 4B-SST so if you want a warmish preamp the LA4 is not for you, it will not add any "tone" to the signal. I actually used the warm SS BAT VK42SE preamp (about $7K) with the 4B-SST but the LA4 is my opinion much better and reference class.
I also used a Bryston BP20 + MPS2 power supply. The BAT was better and the LA4 for me is way better than both.
I used to own the 4B-SST so if you want a warmish preamp the LA4 is not for you, it will not add any "tone" to the signal. I actually used the warm SS BAT VK42SE preamp (about $7K) with the 4B-SST but the LA4 is my opinion much better and reference class.
I also used a Bryston BP20 + MPS2 power supply. The BAT was better and the LA4 for me is way better than both.