I'll chime in, as I own Superflys. I was using FirstWatt amps for a few years (F3/M2), but I'm using a vintage Sansui AU-666 now. I'm doing a very un-audiophile thing... I bumped up the floor gap on the Superflys to about an inch and I leave the loudness button on at all volume levels.
Talk about a party... you get the Fender stack dynamics that Zu talks about in their marketing spiel and great tone from the vintage amp. Bass does not sound bloated at all, it sounds like a decent subwoofer is in the system. Clarity and resolution is a step down from the FW amps but to my ears the tradeoff is worth it.
Talk about a party... you get the Fender stack dynamics that Zu talks about in their marketing spiel and great tone from the vintage amp. Bass does not sound bloated at all, it sounds like a decent subwoofer is in the system. Clarity and resolution is a step down from the FW amps but to my ears the tradeoff is worth it.