I used to work at Quatre when they were on Remmet in Chatsworth (or was that Canoga Park?) The heavy-set guy's name was Guy Hickey.
If you were running a 8 ohm load the amps were fine. 6 okay. But if dipped below 4 ohms - I wouldn't use it.
That said, they had a great sound. The bass was nothing less than awesome - still is. I'm not sure if you could buy a better bass amp for any money now - but then I've never done a comparison test with anything modern. I do remember the Dahlquists were a little bass-shy - but the Gain Cell made world of different. I was their sales and marketing guy and I advertised the amp as being a better solution than buying the Dahlquist sub. And it did sound better. TIGHT. EXCITING BASS. The Dahlquist sub was kinda tubby-sounding. I remember someone brought in a pair of AR3a's. A vintage, but respected speaker at the time. The bass on the gain cell blew away the owner (and everyone in the shop - I remember getting everyone in the back - the factor - to come and listen. It was a real "wow" moment.) Sealed cabinet speakers just went crazy for this amp. But when they went, they went into DC offset - and shot out a nice spurt of DC - which would just push the woofer out and melt the voice coil in place. Awful.
