I had an original Modulus 3 for 19 years, went to the 3A a few years ago with the built in John Curl Phone mc preamp, kept it and put it in my second system, and bought a refurbished 3B from Art Ferris at Audible Illusions. It is not a lateral move from the 3A, it is better in every way. The noise floor is way lower, highs are more extended and the bottom end has much more heft and weight.
The switching is all done by relays now and the stepped volume controls have better accuracy. Just make sure you use the tubes that Audible Illusions sells, they are the best of the best, all hand picked and tested for very low noise.
The switching is all done by relays now and the stepped volume controls have better accuracy. Just make sure you use the tubes that Audible Illusions sells, they are the best of the best, all hand picked and tested for very low noise.