I have listened to a lot of pre amps and the BAT never did it for me, maybe the 6922 driven ones are good but the super tube 6H30's are very dry and uninspiring sounding in my opinion. Pre amps from McIntosh Labs, Manley Labs, Doge Audio, Dehavilland Ultraverve III, and Modwright, I felt offered much more in terms of tonal beauty and top end extension with exceptional mid range and tight defined bass.
Matt M
Matt M