Ascend Acoustics Sierra Towers with tube or lower watt amps


If anyone has had experience with Ascend Acoustics Sierra Towers — RAAL tweeter or not — I'm curious about your experience with

(a) tube amps and/or

(b) lower watt solid state Class A amps, such as the Pass XA-25.

Any details you'd care to relate are welcome, and thank you.

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