Quicksilver amps an appropriate match for Wilson Sophia?

Really appreciate all the responses so far. Even heard back from Quicksilver directly. I'm told that the silver 88 monoblocks would be the best match for Sophia II, but can someone explain this in simple terms? I figured the higher powered V4 would be best, but perhaps more watts isn't really the answer.

I have had lower power amps that were better than higher powered ones. It is not all in the power. Double the power and it gives you a mere 3 db of more power. What is the efficiency of the Wilsons? I use Harbeths that are about 82 db efficient.My room is 20x12x9 . A 50 watt tube amp gets them as loud as I would ever want.

Wilson Sophia II are 89dB and 4 Ohms.

Wilson Audio Specialties Sophia loudspeaker Specifications
Description: Three-way, floorstanding, reflex-loaded loudspeaker. Drive-units: 1" (25mm) inverted titanium-dome tweeter, 7" (178mm) paper-cone midrange unit, 10" (254mm) aluminum-cone woofer. Frequency response: 29Hz-22.5kHz, +0/-3dB. Sensitivity: 89dB/2.83V/m. Impedance: 4 ohms nominal, 3 ohms minimum. Recommended power: >12Wpc.
Dimensions: 41" (1042mm) H by 12" (305mm) W by 18" (457mm) D. Weight: 160 lbs (72.7kg) each.

Those are efficient speakers. In your size room you really don't need a big watt power amp. Since you already have the mini-mite you should get a pair of KT88's just to see if you like them better than the EL34's. If you are set on going to a bigger amp I think the mid-mono's would be fine. BTW,if you decide to try a KT88 you can get a pair of EH for under $70 at tube depot.