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Lamm LP2 and WE417A tubes

I recently purchased one of these and it really is a world class phono stage. Over the years I've had both Pass ONO units, the CJ pr15, an earlier version Aesthetix IO, and lots of lesser units. It is by far the best sounding with the possible exception of the IO.

I was suprised to find Raytheon 5842's in after reading the claim on their website:

Its unique circuitry utilizes specially selected very low noise high trans-conductance Western Electric 417A / 5842 vacuum tubes.

When I asked them about this they said that the dash between 417A and 5842 means "or." They told me that the WE tubes are too expensive and hard to get so they use the Raytheon. In my opinion this is being deceptive since WE also stamped their tubes with 5842 and Lamm invokes the WE name with no intention of ever using the tubes.

So now I sit here and wonder if I'm missing something by not getting some real WE 417A's to try, but I don't want to spend that kind of money if it doesn't change things for the better.

Has anyone tried real Western Electric tubes in it?
herman
herman OP
2,263 posts
 
Wel Jafox, if the LP2 is audiophile crap and your IO is worse you must be feeling pretty silly about spending all of that money :>)

I once had an IO but that was a while ago and it was a single power supply older unit in a completely different system so I won't attempt to compare the IO to the LP2. I was very happy with the IO and it is one of the few pieces I regret selling. The IO is much more flexible in terms of loading and the Lamm does have limited gain so if you need the extra gain (I don't) then the Lamm is not for you.

I too am curious what the reference phono stage could be.
guidocorona
4,298 posts
 
And what is a juts finny syntactic phonocorrector? Inquiring minds need to know!
jafox
1,466 posts
 
Herman: I too have an older Io with one PS and still it is wonderful. It was quite a step up from the very nice BAT VK-P10 in the ways of portraying a more open and realistic 3-dimensional presentation. But with Albert Porters' posts here on suggested tube rolling, I spruced up the Io with a complete tube overhaul and this change far exceeded what I ever could have imagined. I got yet another tier of harmonic richness and decays with the Telefunkens and Mullards. And yes I need the gain. I typically run the Io at 74db gain for either the Koetsu Rosewood Sig or the Clearaudio Accurate.

Guido, Guido, Guido: Behave! 8-)
herman OP
2,263 posts
 
JaFox, now that I think about it, the tube thing was the reason I got rid of it. It was getting the point of needing tubes and a factory set was $500 for a single PS unit. Getting into tube rolling was beyond my means at the time and even a stock set was a stretch so I decided to move on. I got a Pass AlephOno which wasn't up to the task of competing with the IO but was a fine unit at the price.

If the Lamm is crap and the IO is worse then I hate to think what the Pass was. Probably ruined my hearing.
guidocorona
4,298 posts
 
Ok Jafox, really, I am tryin', I am tryin'!
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