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Old 25th October 2010, 01:19 PM   #1
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Need to reposition my sub and require 30' of cable. Was going to use quad sheild RG6 and crimp on some RCA ends. Neighbor came over and said there is some pretty good Belkin coax cable that uses copper sheild, blah blah blah.
Anyone have recommendation and a part number of some good cable.
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Old 26th October 2010, 12:03 AM   #2
GM is offline GM  United States
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Even ganging together leftover junk interconnects are normally good enough for 50 ft sub amp runs, so all you need is the cheapest RG59 available locally or from here: For only $4.60 each when QTY 50+ purchased - 50ft Coaxial Audio/Video RCA Cable M/M RG59U 75ohm (for S/PDIF, Digital Coax, Subwoofer & Composite Video) | High Quality Digital Audio Cables

Or the longer run capability of RG6 if you've been swayed by marketing hype or have real world RF interference issues where you live such as near an airport like I do: For only $8.09 each when QTY 50+ purchased - 50ft High-quality Coaxial Audio/Video RCA CL2 Rated Cable - RG6/U 75ohm (for S/PDIF, Digital Coax, Subwoofer & Composite Video) | High Quality RG6 Digital Audio 24K Gold-Plated Cables w/ Fancy Connector

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Old 26th October 2010, 12:54 AM   #3
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Not that quad-shield won't work, it's just optimized for high radio frequencies.
Plus it's harder to wire to a RCA connector.
Best bet is a co-ax with a heavy braid shield.
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Old 26th October 2010, 02:44 AM   #4
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I used regular RG6 for a 30' run to a sub on my friends home theatre but I used the compression R CA's from audiotronic(gold plated). They were a good deal and really solid when pulled. When fired up and running there was no noticeable hum or hiss induced into the reg RG6.
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Old 26th October 2010, 03:01 AM   #5
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Buy some from Blue Jeans Cable. That stuff is pretty much among the best out there for a reasonable price.

<- not affiliated with BJC
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Old 26th October 2010, 03:02 AM   #6
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Subwoofer? You want low, low, low DCR. Big, thick mains cable. For that run, 10 gauge is not too thick. 12 gauge in a pinch.
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Old 26th October 2010, 05:20 AM   #7
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Not to send a signal to a plate amp.......

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Old 26th October 2010, 05:58 AM   #8
nac134 is offline nac134  Canada
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Keep in mind that coax cable is 75 ohm. I rewired a 4 room hifi store that used coax in wall for subs and just switching to generic ok quality RCA cable made a world of difference. Spend around 40 bucks on a 30 foot cable, says I.
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Old 26th October 2010, 06:16 AM   #9
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Quote:
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Not to send a signal to a plate amp.......

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Huh? But that's what he wants to do. I think.
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Old 26th October 2010, 09:54 AM   #10
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Huh? But that's what he wants to do. I think.
If that's the case (wasn't clear to me), then the lowest C cable he can find. RG62 is pretty good, about 13pF/ft. For a 30 ft run, that's only 390pF. It's probably a good idea to put a 1k resistor in series with the sending end, just for insuring preamp stability.
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