Audible Illusions modulus 3A, what would be the next level of up grade?

Move up to the Audible Illusions Modulus 3B.  It is light years ahead of the Modulus 3A.  I owned the original Modulus 3, 3A and 3B.  The 3B is absolutely dead quiet and the music just really flows.  It is a bargain at the retail price and I saw one here a week or two ago for around 3 grand.

Having owned 3 AI preamps including the 3B, I agree.  I believe it is a 3 person operation at most with Art Ferris (semi retired) , a tech and secretary.  I am lucky in that I never needed service.   I waited 4 months for tubes that never arrived.  I bought the 6h23neb tubes (matched) from the tube store and never had a problem and they were dead quiet.  Also, received them in 4 business days!

Arts biggest downfall was customer service.