Monoblocks with lots of bottom end?

Hi, everyone
I am in the market for a pair of monoblocks with lots of power & bottom end. Any suggestion? I am looking at Bryston 7BST or SST or the Simaudio W-10. I am using a BAT VK-30 tube preamp & Magnepan 3.6r speakers. I have heard "Galant Divas system in virtual system" and was very impressed with his setup. He was using Musical fidelity kW (1000w @ 8ohm) monoblocks. I have never heard so much bass from a ribbon speaker (Scintillas). I am trying to mirror his system without selling off my mortgage. Any suggestion would be welcome & consider. Thanks in advance for your input. By the way, my current amplifier is Simaudio Aurora 7ch (200w/ch @ 8ohm, 400w/ch @4ohm). I am bi-amping by using 4 channels from the amp. Two channels are driving the tweeters & 2 channels are driving the bass panels. Thanks