2. amps-preamps
  3. 1215545726

ARC LS26 power cords, interconnects, tweaks

I just purchased an Audio Research LS26 preamplifier. This is my first tube component and now my system could go fully balanced if I invested in xlr cables. I am very happy with the overall sound of the LS26. The separation of details and fuller sound in the midrange is an incredible improvement in many ways. Tones sound so natural and true through this preamp. That said, I do not feel I am getting the full level of performance it is capable of. My former pre was a solid state edge g1. There was a sparkle in the treble that is not there with the ARC and while the midrange is certainly fuller it sounds very slightly veiled especially on voices. I am sure this is just a tweaking issue as it really does sound incredible. I would love to hear from other owners who have experimented and what you've learned.

I currently own all Tara Labs RSC interconnects terminated with RCA. My system is:

amp: spectron musician 3se mk2 (isoclean superfocus power cord)
preamp: arc ls26 (shunyata taipan power cord)
cdp: resolution audio opus 21 (shunyata taipan power cord)
loudspeaker: audio physic scorpio: spectron remote sense speaker cable / purist audio new elementa advanced

Thanks
J
j_evege
j_evege OP
29 posts
 
Thanks for your input. Last night I was tinkering around with some xlr cables i borrowed from the cable company. I put them in several days ago. There was some improvement in gain but it was not a night and day difference. At the request of the dealer at Audio Connection in Verona NJ(nice guys by the way) I tried moving the cd input to the "monitor" input. The improvement in sound was dramatic. The flatness disappeared, the high frequences were more clear and crisp. In effect, I was happy with my system again. The ic's were purist audio elementa advance which is also the line of speaker cables i have. this may be a useful tweak to other ls26 owners. The gain stages will not work in monitor mode but it isn't missed. Why would the monitor sound better than the cd input?
rayden1972
22 posts
 
I used to own LS26 and had the same experience. According to my dealer monitor has a shorter signal path than CD input that's why it sounds better. Its also the reason that with monitor input you dont have all functions available e.g. gain as far as I remember.
jim_swantko
301 posts
 
I too use to own an LS26 and had great results with XLR audio magic cables.

That being said it does take some time for it to fully open up so just keep breaking it in.
rayden1972
22 posts
 
@Jim_swantko

Out of curiousity what pre do you own now and how does it compare to the ARC?

Cheers,
-Rayden
sflazor
16 posts
 
Rayden 1972 and Jim swantko, you both state that you "used to own" the LS26. What pre did each of you purchase after the LS 26 and what aspects of the performance of the LS26 were lacking as far as your personal preferences are concerned?
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