The Levinson Sound?

blindjim, the sound experience you describe, if it was with an older ML amp, is most likely because that amp was due for an overhaul. I have no doubt there are “better“ amps out there but that’s not the point of discussion here. I’ve heard countless amps (and speakers) that sound very detailed when heard for the first time or for a short period but become intolerable after an hour or so. The No. 334 (and X150.5 to a lesser degree) are for all evening all genre music listening when paired properly. 

Though I can certainly understand why Levinson has a following. The Levinson house sound just isn't as appealing to me as much as some of their direct competitors. The Levinson's don't seem to have the open micro and macro dynamics as some of them. Also, their reputation for customer service (especially at these price points) isn't all that welcoming to me either.

jafant
Like i said i only heard it for a few minutes at the audio show. But it did not stand out if i remember correctly. I think the audio shows are a good place to get exposed to products but a lot harder to form a feeling  on something when you hear it for a couple of minutes. Rooms, speakers and cables  all enter into it even music played.

clemvice
The Levinson 336 amp is 2 channel amp 350 wats into 8 ohms and doubling down each time 700 into 4 ohms 1400 into 2 ohms. Not a multi channel amp. The power cord is hard wired so you can not swap it out . Unless you modify the amp

To add to 68pete's comments on the 336, it absolutely suffered from the same capacitor issue as the 331-333 models.  All 33x amplifiers did.