I've done a good bit of research on this. If you search the LMA for 'AT 4051 chris clark', you will find a lot of examples...he's run them in to a bevy of different preamps...V2, V3, MP-2, Mini Me...maybe more but those are just the ones that I've found by him. I like the Sound Devices MP-2 the best with those mics. There are tons of examples on there by other tapers as well...PS2 > AD20, MV-100, Aerco MP-2, Mini MP...