BEST AMPS FOR WILSON SASHA

It's obvious, that Wilson speakers have the ability to severely scar some people. 

I had a similar experience from the owner of a hi-end shop in Sydney that had the retailer-ship taken away from them, before that they couldn't heap enough praise for them.

Cheers George      

If anyone says Wilsons have harsh highs, they need to look seriously at their amps preamps or source for the problem.

As Wilson highs are about the only one of a couple dynamic driver top ends that I can listen to and still like compared to my ESL’s, or when I can leave my windows open to get rid of the ozone gas, my Plasma tweeters.

http://www.hifido.co.jp/KW/G0206/E/0-50/C11-62930-26992-00/

Cheers George

A big +1 for the Pass amps, as they will stay uniform over the audio band range in frequency response driving the Sasha varying loads.

The 211’s will act like a tone control and not stay flat in it’s power delivery, especially around 60- 100hz where the Sasha is 2ohm and -45 degree phase angle and where the power is really needed, the 211’s will sound thin/bright and with very low bass drive and control.

(That 2ohms and -45degree can equate to an even lower than 1ohm perceived load to an amp!!!)

http://cdn.stereophile.com/images/archivesart/710Wilfig1.jpg

Quote from Stereophile measurements:

Sasha’s plot of impedance magnitude and electrical phase (fig.1) reveals the speaker to be a demanding load for the partnering amplifier to drive. Not only does the impedance drop below 4 ohms for most of the lower midrange and upper bass, with a minimum value of 2 ohms at 86Hz, but there is also an amplifier-unfriendly combination of 3 ohms and –43° phase angle at 61Hz.

Cheers George

And to boot Al,, not just zero global feedback to bring output impedance down, but in conjunction with a minimum transformer tap of 4ohm, is another indication of a "not very good match", with these types of impedance loads that Sasha's and many other have.

Cheers George