I have a friend with the First Watt M2 amp driving a pair of Ref 3a reference L'integral with excellent results in a 20'X14' room. 25 watts which I believe is similar or the same as the J2. I second the above recommendation. He is bringing over his M2 to my place in the next week or two for evaluation. I expect very good results based on what I heard at his place although the J2 and M2 are a bit different in their output devices Jfets vs mosfets in the output stages. The Decapo BEs are just superb music makers but I AM prejudiced so take my words with a grain of salt or if for no other reason than to have you listen to them with that J2 if you get the chance. I do believe you will be pleasantly suprised.
Btw, I think you purchased a really excellent amplifier. Now just to find the right speaker. Read, research and listen to everything you can and be patient!
Btw, I think you purchased a really excellent amplifier. Now just to find the right speaker. Read, research and listen to everything you can and be patient!