I've owned a number of Revel models. Years ago I upgraded the caps in a pair of M20s to Sonicaps and added No-rez to the cabinet wall with some success. I have M105s now and have changed the tweeter wire to 20 ga.Neotech zero crystal copper and the woofer wire to Goertz M1 wire, and damped the back of the tweeter face plate with caulk. This also was worthwhile for light work, but I wouldn't say they are quite on a par with the Dynaudios. I'd be hesitant to change crossover values, though. Revels are well engineered, but they do cut some corners on some parts qualty below the Ultima line.
