Its been years since I heard a Quicksilver amp, but I recall they had much more of a classic tube sound: big, warm bordering on lush, the bass was a little loose and the highs a little rolled off. In contrast I'd say my Decware amps are big, fast, transparent with just a drop of liquidity, with tight bass and extended highs. If I were to sum it up the Quicksilver amps sounded seductive but the Decware amps sound like real music.

I’ve got a Mini Torii, SE84UFO and Quicsilver Horn Monos…and many other amps.  The Quicksilvers were the first amp I ever put in my system that truly replace the little Zen.  Mine are not classic tube sound at all.  It’s like a SE 84 with a bigger soundstage, more power, resolution etc.   The companies are very much alike.  You can talk to both owners on the phone, point to point wiring, all USA handmade etc.