Best amp for VonSchweikert VR5?

Aloha from Hawaii:

I have the original VR4, and they are singing. I am running Unison Research Mystery Two preamp (Italian tube amp manufacturer, www.unisonresearch.com) and their Smart 845 mono blocks. Amps are gorgeous, huge, and fantastic sounding. 25 watts per channel, single-ended. I consulted with Albert and with Prof. Sacchetti, the designer/founder of Unison Research, to make sure the amps would drive the speakers. They do, beautifully.

Sources: Nottingham Analogue Interspace turntable w/Benz Glider cartridge; also N.E.W. Ventura tube output CD player. CD player sounds better than any other I have heard, but nowhere close to analog turntable. Vinyl rules.

As for your lack of immediacy,definition and detail, I wonder: how long have you had the upgraded speakers operating? Perhaps they need to break in?

Let me know if you have any other questions about my system. You can email me at terry@safewatersystems.com.

Terry

i dont think its the amp at all you've goot a good one. poster above has good idea let your speakers break in more...

I do not think break-in is the problem, I have had the VR4 to VR5 mod since early this spring and have played them many hours at loud volumes.
Regards

Since I am familiar with you equipment and talking to you,Break in is not the probelm.Though Plinius is a very good amp it also has matching problems (as do many other components) in your system with the VR5s.Both cabling or the amp could be the culprit.Albert has had very good success with Bel Canto,and so have others,He will be using Spectron (as well as Bel Canto)in this upcomming CES.I have 3 clients that have had extreme success using both of these amps and VSA speakers.