2. cables
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Need 25 foot interconnects

I just moved around my equipment so that the rack with the preamp and digital sources is on the left side of the room and the monoblock amps are just behind the left speaker on a short platform on the floor.  I’m using a 15’ RCA interconnect right now, but want to move each monoblock to just behind each speaker — which means I need a longer cable.  The monoblocks are unbalanced RCA input only but my preamp can do balanced XLR or unbalanced RCA out.  Would a balanced XLR cable plus an XLR to RCA adapter work for this setup and be my best option?  Or should I just get a Belden (or similar) 25’ unbalanced RCA interconnect?  Or is there a better option?   

nymarty
gdnrbob
4,441 posts
 

Mogami XLR cable is about as inexpensive as you can get, and still get decent quality. Probably cheaper than a lot of RCA cabling.

B

fuzztone's avatar
fuzztone
5,543 posts
 

You need balanced amps to make any difference with balanced cables. Necessity is determined by RF noise in your playback space and sensitivity to it of your electronics.

dpop
293 posts
 

You need balanced amps to make any difference with balanced cables. Necessity is determined by RF noise in your playback space and sensitivity to it of your electronics.

100% totally agree. Those 25' length RCA cables are going to make great RFI & EMI receiving antennas. My rule of thumb is 3' or less when it comes to RCA cable lengths. 

erik_squires
16,009 posts
 

My advice:  Try the unbalanced with cheap RCA cables first.  if the noise is acceptable then you can upgrade.  If on the other hand it's a noisy mess, you are going to have to find something better.

audioman58's avatar
audioman58
4,083 posts
 

If long interconnects needed for sure XLR ,that’s what all recording studios 

use for lowest possible noise .

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