I do not claim to be an expert in these matters, but dude....I tried my best to replace my kef 107's, but at the end of the day I just couldn't do it. Those two 10inch woofers gives me that DEEP bass that I love. I looked at revel salons and b&w N801 and decided to stay with my kef's. At least until I can find those at the absolute right price. Try to get your hands on a pair...you won't regret it!!