Sorry, can't help you "head to head", but I can attest to the sound of Siverline. I use SR-17s (monitors) but got to listen to the Sonatinas when I bought the SR-17's, and absolutely loved them. Couldn't afford them then, or I would own them today, but I have absolutely NO complaints with the SR-17s, and have no reservations recommending the Sonatinas. I do recall preferring their balance and voice over the comparable Sonus Faber (not the Grand, I don't think, one model down, perhaps?). In daily use, I've come to believe there is something to the Silverline idea of chopping off the top front corners on the cabinets. I am not an engineer, nor do I profess much beyond rudimentary knowledge of audio, but there IS something different in the way these speakers present. And I like it. I find their treble to be the smoothest I heard, and the overall range of the speaker to be most complete (iirc, they spec better than the SF's , but I'm too lazy to go look it up! I know you can't hear specs, but...I have heard the speakers.)
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