@bobheinatz
I'm running a muscled up First Watt F5 clone I built. It's a very nice amp but it's brutally honest. The F7 is supposed to be a kinder interpretation of the F5 topology. The First Watt amps are unique amps and aren't well suited for every speaker. If you've got $10,000 to burn and you like the simple, lower power designs of First Watt, I'd strongly suggest looking at the Pass XA25.
I'm running a muscled up First Watt F5 clone I built. It's a very nice amp but it's brutally honest. The F7 is supposed to be a kinder interpretation of the F5 topology. The First Watt amps are unique amps and aren't well suited for every speaker. If you've got $10,000 to burn and you like the simple, lower power designs of First Watt, I'd strongly suggest looking at the Pass XA25.