suggestions for pre amp for Quikie v4 monos

My advice is to go with the Aesthetix Calypso run balanced all through and flip your V4s into true balanced and Get a pair of XLR Vandersteen 5 High pass and set them at 200K with the Quicksilver amps. Samar mentioned in an e mail to me when he owned the pairing he was running v4s and Calypso ((RCA)) which is going through 2 phase inverters which is just ho hum ok. Driving the system XLR true balanced gets rid of one extra Phase inverter and makes for way better performance and puts the V4s Calypso and system in another league.
Cheers Johnnyr

Or you can buy a S/E preamp and not have the problems.

Thanks everyone for your responses. It was a tough call between the Shindo Monbrison and the Ear 868. The ear 868 won! Again thanks to all.