Help with Modified Audible Illusions Modulus 3

Can someone help identify what has been dont to this Modulus 3?

It has worked flwlessly in my posetion. I used this with my Martin Logan MOnolith 2's and a Stereo Grand Amp.

Thanks for any help you may be able to offer.

http://public.fotki.com/danphealy/4_sale/my-modified-m3a.html