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In Reply to: Differances between Audio Research LS1 and LS2 please posted by 2395 on September 4, 2006 at 19:57:55:
2395,The LS1 and LS2 seem to be sequential designs with one 6922 tubes each, but the LS2 was quite a bit more expensive- ending up $3000 as a MKII balanced as against the LS1 at $1700:
http://www.arcdb.ws/LS1/LS1.html
http://www.arcdb.ws/LS2/LS2.html
I'm not sure I ever heard the LS1, but given it was the first "LS" design and was quickly superceeded by the LS2 tells the story I think. A friend traded his SP10 for an LS2/PH1 which I though was a big mistake, but the LS2 is still highly regarded. I like the LS2 only to an extent- I seem to always prefer the Audio Research stuff with the most tubes. Replacing the one 6922 with NOS has only a small effect. The LS2 also has a way to reduce gain and I think that's an important feature now - modern CD players and tuners can be too enthusiastic and need gain reduction. I use an LS3 in my office and the gain is never past 9:00- not in it's optimum range.
So, between the two, I'd firmly choose the LS2 and further, make it a MKII and even better a balanced MKII- more control over the gain plus quiet, quiet, quiet.
Sorry, I don't know of modifications to the LS1. ARC stuff is typically so well refined and the components near top quality already that modifications must be done by a patient genius to make improvements that don't also have a penalty elsewhere!
A good LS2B/II must be around $1100 now. If your budget though would extend to $1500-1600, you might also consider a unit with more tubes and look at the excellent LS15- that with four Amperex Bugleboy 6DJ8s is a great preamp.
Cheers,
Bambi B
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Follow Ups
- Audio Research LS1 and LS2 - Bambi B 10:24:07 09/05/06 (0)