I agree with most of comments on the sound quality of the Aleph 3 and David99 is right! I have been using a pair of Kef 104.2 (92db,4 ohms) I don't know what's the defination of 'headbanging volume' but I do know that in my 13ftx20ft room the bass extends to a very respectable level! The latest recommendation from my local dealer is the Italian horn speakers, Zingali. For those who has tried this combination, care to feedback?