Dr. John,
I drove my WP5's for some time with an ARC Classic 60. While 90% of the time I was happy, it was only after I tried a Levinson 335 that I realized what I was missing. A tube amp like mine, and yours, will not control the bass as well as a a big, high current one like the Levinson. I realize everything is a trade off and tubes have their own magic.
My point is, with your amp, you won't be getting the same level of low bass control as you otherwise might. Hence, you won't be able to take advantage of the probable difference between the Sasha and the Sophia 3. While the Sasha can likely produce a more powerful low C organ note than the Sophia 3, with your amp I doubt this capability is material.
The only way to know for sure is to listen to both in your room. My guess is the Sophia 3 would work just as well for you.
I drove my WP5's for some time with an ARC Classic 60. While 90% of the time I was happy, it was only after I tried a Levinson 335 that I realized what I was missing. A tube amp like mine, and yours, will not control the bass as well as a a big, high current one like the Levinson. I realize everything is a trade off and tubes have their own magic.
My point is, with your amp, you won't be getting the same level of low bass control as you otherwise might. Hence, you won't be able to take advantage of the probable difference between the Sasha and the Sophia 3. While the Sasha can likely produce a more powerful low C organ note than the Sophia 3, with your amp I doubt this capability is material.
The only way to know for sure is to listen to both in your room. My guess is the Sophia 3 would work just as well for you.