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Lamm hybrids M1.2Ref /2.2 vs.Pass XA.5-series

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Posted on September 2, 2010 at 07:40:07
Hasse
Audiophile

Posts: 395
Joined: June 2, 2000
How does the Lamm M1.2Ref (or the M2.2) sound compared to the Pass XA100.5? (both Class A amps) They would be used to drive a pair of Maggie 3.6īs. Any input would be much appreciated.

 

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RE: Lamm hybrids M1.2Ref /2.2 vs.Pass XA.5-series , posted on September 2, 2010 at 14:23:15
Sordidman
Audiophile

Posts: 12170
Location: San Francisco
Joined: May 14, 2001
Hola,

Nothing that ever says "Pass" on it can EVER compare favorably with anything that says "LAMM" on it. Lamm represents the finest amplification that can be purchased in my book and if the system doesn't sound right with Lamm's in it, - than there are other issues....

my $.02

Cheers,



"Asylums with doors open wide,
Where people had paid to see inside,
For entertainment they watch his body twist
Behind his eyes he says, 'I still exist.'"

 

RE: Lamm hybrids M1.2Ref /2.2 vs.Pass XA.5-series , posted on September 2, 2010 at 15:20:05
Raiderman
Audiophile

Posts: 1889
Location: Silicon Valley, California
Joined: March 14, 2003
Well, I've never actually done a direct comparison between amps from those two companies, but I have heard many direct comparisons between the Lamm M2.2 monoblocks and several other high end amplifiers, (in my friend's system), including:
Kora Cosmos,
BAT VK-150s,
Manley Neoclassic 250s,
VTL MB-450s,
DarTZeel NHB-108,
VAC Phi 300.1.

The only one to truly challenge the M2.2 was the (tubed) VAC Phi 300.1 stereo amp, IMHO. (In fact, I would say that they are equals, with each having different strengths and weaknesses - albeit VERY minor weaknesses.)

I have also heard both of the Lamm amps you've mentioned, although not in the same system. The full class A M1.2 reference amps were just a tad bit sweeter in the mid-range, but other than that, there was very little, to no, difference, IMHO. (And having double the power in the M2.2, really helps when driving speakers that need that power to achieve really deep, powerful, quick and tight bass.)

FYI, I use the 200 wpc M2.1 monoblocks, (the predecessor of the M2.2), and I love them. They are just a slight bit dark sounding in comparison, but from the lower treble on down, they sound fantastic and close enough to the M2.2s for me to be very happy with them. (And the used price of the M2.1s, ($7K), is about half the used price of the M2.2s, ($13K).)

My two cents worth anyway.

PS If you get the Lamm amps, I highly recommend doing a bit of tube rolling, as one can provide a definite sonic improvement by dropping in some NOS tubes. The supplied Sovteks sound okay, but can be easily bettered. (The Lamm amps only have one 6922 tube in each monoblock, so tube rolling is relatively easy and cheap.) I use the Pinched Waist Amperex 6922's myself, (as does my friend in his M2.2s), and these cost a few hundred dollars for the pair. But I achieved nearly the same sonic results using some Amperex Orange Globe 6DJ8s, for $40 a pair. (So you don't have to spend a fortune to get good results. (But with amps this good, you'll want to get the very best sound you can out of them, so you'll eventually find yourself doing some tube rolling is my guess!)

 

RE: Lamm hybrids M1.2Ref /2.2 vs.Pass XA.5-series , posted on September 3, 2010 at 05:01:39
Posts: 187
Location: N. California
Joined: April 28, 2005
i have heard the lamms on numerous occasions be it the 1.2 , 2.2s and the other all tube lamms.
They have always impressed me with their naturalness, musicality, power , sweetness, etc... I just love these amps the way they make music.
I have heard Soulutions, the Goldmunds, the big Krells and Classe but
i would cast my $ on the lamms!!
I only heard Pass amps a few times, they are quite good also, but i would rather go for the lamms if i have my choice.

 

Another vote for the Lamms, posted on September 3, 2010 at 06:55:09
plantsman
Audiophile

Posts: 4790
Location: Maine
Joined: April 4, 2002
I would, however, go with the extra power of the M2.2 rather than the 1.2.
"There are political consequences to remembering things that never happened and forgetting things that did." Ariel Levy

 

Thanks everyone, perhaps the more powerful 2.2s..., posted on September 4, 2010 at 03:20:39
Hasse
Audiophile

Posts: 395
Joined: June 2, 2000
...would be a better match than the 1.2Ref with the 3.6īs (86dB, 4 ohms)if there is "very little, to no, difference" in sonics?

 

RE: Thanks everyone, perhaps the more powerful 2.2s..., posted on September 4, 2010 at 09:38:23
Raiderman
Audiophile

Posts: 1889
Location: Silicon Valley, California
Joined: March 14, 2003
That is what I would recommend.

 

LAMM, posted on September 4, 2010 at 14:39:54
morricab
Audiophile

Posts: 6848
Location: switzerland
Joined: April 1, 2005
Definitely more natural and realistic sounding.

 

RE: Lamm hybrids M1.2Ref /2.2 vs.Pass XA.5-series , posted on September 4, 2010 at 16:26:54
Posts: 187
Location: N. California
Joined: April 28, 2005
Looks like an anonymous vote for the Lamm monoblocks!

 

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