12-28-10: Pdspecl
I once had an Audible Illusions Modulus 3. Sounded nice but the brand new National 6922 tubes only lasted about 200 hours. Be sure to use Russian miltary spec tubes if you get the AI preamp.
I have 2 friends still using their Audible Illusions Modulus 3 and they have excellent results with Reflektor 6H23P-EB tube. Very durable, transparent, good extension in both ends, super low noise and low microphonics.