I’ve been using a Carvin DCM200L 1U power amp paired with an F-2B for several years now. LOVE it! I see this new one is 340 watts/channel into 8 ohms. That’s a LOT of power, especially for guitar. I’ve also gone back and forth between a two space rack and a three space rack with an added SF-2. I used a Mesa 50/50 power amp prior to the Carvin. The Carvin is smaller, MUCH lighter and, in a band context, no one can really hear the difference.
Bill, tgo