Levinson 332 v Levinson 431

yeah the upgrade would be nice but i would listen to the Theta enterpries first i use to have the .332 great amp but not close to the new Theta Enterprise!!

Funny thing people dont realize is that the ML 4 series amplifiers is NOT an upgrade from the 3 series amplifiers. In fact the 4 series Mark Levinson amplifiers use alot of parts from the older less expensive Proceed line that was discontinued. I have heard both extensively. Both sound very similiar, but then again I could also state that Proceed HPA amps and 3 series ML amps sounded about the same too, but there in lies the full circle. Lets pay twice as much money now for an HPA series Proceed amp with the ML tag slapped onto it. That is in essence what the new 4 series amp is all about. I used to sell Proceed and ML and know the company very well.

Stick with your 3 series amp. Send it back out for repair, or better yet, get it repaired and upgrade to a ML N0. 335 or 336 which is basically a small improvement in design and reliability over the first 300 series amplifiers made from ML such as the unit you have.

I, too, would agree that the new 400 series Mark Levinson amps are more like the Proceed line in sound than the previous 300 series. Both the Proceed line and 400 series amps are warm, rich, full-bodied, reasonably detailed, dynamic, but not overbearing, and reasonably transparent. The 300 series has many of the same attributes, but seems to be a little less warm, slightly more transparent, a little more extended at the frequency extremes, and possesses a bass response that's a little more powerful. The differences among all these amps, however, are small. I would say that the 300 series is Mark Levinson's best made amps, your current amp's problems notwithstanding, followed by the 400 series. The Proceed brings up the rear, but offers the best value by far. Currently, I own the Proceed AMP 5, which is five years old and has more than 3000 hours of use. The unit has been very reliable and faultless in its delivery of both sound and power. I am considering adding the Mark Levinson 431 to my system, but feel, to a large degree, that such an upgrade would not give me any significant improvement over what I currently own.