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RCA vs XLR which would say is the BEST?????

Here is the system:
1. Merlin TSM-M (right/center/left)
2. Axiom QS 8 rear channels (right/left)
3. (2) Earthquake Supernovas MKIV
4. Satori Shotgun Bi-Wire Speaker Cable (right/center/left)
5. Arcam DV 27 (no xlr connection only coax/optical/analog)
6. Bryston SP-1 Pre/Pro (coming with XLR connections)
7. Bryston 9BST amp (coming with XLR connections)

Now I need to connect the SP-1 to the 9BST so do I use RCAs or XLRs? I can do the in either .5 or 1 meter. I have enough RCAs to do the job now and I would have to buy the XLRs. I only want to do this once (right how many times have I said that in this hobby) so your advice will be welcomed. Which should it be?????
hammerfilms
darrylhifi
498 posts
 
Abolutely correct balanced can reduce hum and is of course used by many musicians for stonger transfer of signal with long runs.However the poster will be running .5 to 1 meter.
rockvirgo
587 posts
 
A lot of the NOT truly balanced preamps still generate twice the gain at the XLR outputs. This may reduce the useful range of your volume control. Check the specs to see if the output of the Bryston doubles between the RCA and XLR outs. Then let your ears be your guide.

In my experience XLR's always sound as good as, and usually better than, RCA's. It might be imaginary but they give the sound a more airy, floaty quality.
sugarbrie
3,854 posts
 
A lot depends on what gear you want. There is a lot of great gear out there that does not come with XLR connections. If you can use XLR's and it is truely balanced then go for it. Definitely do it for very long runs. I agree that for short runs, you probably won't notice much of anything if any at all.
zaikesman
3,017 posts
 
I have heard some positive differences using balanced connections for 1m runs vs. same kind of cable single-ended. I don't think anyone can really know this answer short of you trying it out for yourself, despite your wanting to "...only do this once". To me, if you want to know for sure, you'll have to bite the bullet and experiment (just make sure to match volume levels to compensate for balanced's hotter output). At least buying cables on Audiogon if you're so inclined, you probably won't have to worry about taking a hit in the wallet when you go to sell the loser.
detlof
1,899 posts
 
Having read all the posts above and found nothing to contend with, I would consider Zaike's post the most reasonable., simply because there is no objective "BEST" . Your ears will have to decide....just my 2cents ..Cheers,
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