Are monoblocks the way to go?

I'm upgrading my system piece by piece. I recently bought an Ah! Njoe Tjoeb CD Player and an Eastern Electric MiniMax tubed Preamp. I would next like to upgrade my Adcom Amp to a tubed Amp and I'm considering going with Monoblocks. While auditioning Preamps, I was very impressed by a pair of Quicksiver 100 Mono's - exceptional build quality and value. I had originally been leaning towards the Cary Rocket 88. I have vintage Klipsch Heresy speakers that I plan to keep. My goal is to create a system that is very transparent with a lifelike 3D soundstage. I need no more than 25 wpc since the Heresy's are 96db/1watt/1m. Any opinions on Mono's vs single amps? Thanks.