Levinson 33H & 436???

I was wondering will the 33H's play as loud as the 436's? I currently have 436's & I know the 33h's are rated at 150w. If you've listened to both of these amps, what are the differences? My speakers are Revel Salons.

I have 436s. They sound great on my Salons. However my system sounds better biamped with 2 pair of 436s. I think the 33hs probably sound better, but I believe I would have more power and headroom with my set up.