I tried a Gain Cell back in the very early '80's while searching for an amp to run my Acoustats properly, but it wasn't up to the task (nor were amps from Crown and Luxman- ended up with a Bryston that worked out splendidly), and haven't seen one since. Don't know how they worked with other speakers.
On the subject of hot-running amps, I used to have a Phase Linear 400 running a pair of ESS Rock Monitors, and that Phase would get hotter than my George Foreman grill!
On the subject of hot-running amps, I used to have a Phase Linear 400 running a pair of ESS Rock Monitors, and that Phase would get hotter than my George Foreman grill!