Mono blocks that can provide that golden sound...


I cureently own a pair of Pass Labs XA160.5s. They are a incredible sounding pair of mono blocks but they tale a very long time to warm up and settle down. I refuse to listen to them untill they are warmed and settled as when they are first turned on the sound is 2D, flat, non ingaging and just not much enjoyment at first. When they are warmed up they are to die for and would be lifers for me if not for the long warmup time which can take 1-2 hours of playing music. I can't afford to just let them stay on 24/7 as I tried once and they added $100+ to my electric bill and wife was not happy about it.

So, can anyone reccomand a pair om mons that provide the same or very close to the signature sound of the Pass that require very little warm up time like 30mins or less? Alos must be new or used under $13K. Not 100% sure to keep or swap out yet. Thanks!
rampage60

Showing 1 response by kurt_tank

In that price range, I would recommend either the:

110 wpc Lamm M1.2 reference hybrid full Class "A" monoblocks.

or

220 wpc Lamm M2.2 hybrid Class "A/AB" monoblocks, (which are heavily biased into Class "A". (The first 41 wpc are biased into Class "A", and then they go into Class "AB".)

These hybrid amps sound very similar, with the M1.2 reference sounding just a bit sweeter in the mid-range, (as you'd expect from a full Class "A" amp). The M1.2 will drive most speakers with average impedance and/or efficiency, whereas the M2.2 has enough power to drive virtually any speaker. The sound is fairly neutral, with just a touch of tube sound in the mid-range. (They have a great bass response, and the treble response is very refined and well extended.) These amps will warm up fairly quickly. Upon startup, they sound good. Within half an hour they sound very good, and after an hour, or so, they sound great.

However, to get the best sound out of them, you will need to replace the stock Sovtek tubes with some sort of NOS tube. (Something like the Amperex Orange Globe 6DJ8, for less than $100 a pair, will make them sound very, very good. However, something like the Amperex Pinched Waist 6922's will take them to their ultimate sound quality, but they are fairly expensive, at a few hundred dollars a pair.)

FYI: I have two friends that own the M2.2 amps, and I own the 200 wpc M2.1, the predecessor to the M2.2. We have all owned Lamm amps for several years, and none of us has left the Lamm family of amps since we bought them.

Good Luck in your search.