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Extending Subwoofer cable
4 replies to this topic
Posted January 07 2009 - 02:45 PM
My basement was prewired with a Monster subwoofer cable but they made it too short to reach a receiver. I bought a barrell connector/coupler but now I only need 3 more feet of sub cable. Any thoughts on the best way to keep the best connection and somehow only getting 3-4 feet of wire and not lose quality?
Posted January 07 2009 - 03:15 PM
I've read where some HTF members make their own subwoofer cables out of standard 75 ohm coax(F) cable by splicing RCA connectors on each end. Doing this, you could add whatever length you need. You might even be able replace the Monster cable by securely taping the end of it to the coax cable and pulling it thru the wall. Use good quality coax cable and RCA connectors and it would be as good as the Monster cable was. As an alternate, video cable (the yellow one) is the same specification as a sub cable, 75 ohm. Try and find a good 4-6 foot one to add to the Monster cable with the barrel connector.
"Everyday room": Panasonic 58" Plasma, Dish HD DVR, Pioneer Elite vsx-23, BDP-23 BR, dv58avi universal dvd player, Paradigm Studio 20 V1, CC-450, Dayton HSU-10 subwoofer.
"Movie/Music room": Toshiba 65" DLP, Dish HD receiver, Marantz 7005, CC-4003, BD-7006, Polk LSI25's-LSi7's-LSiC, 2 original Dayton 10" "Mighty-Mites" subwoofers. (subject to change without notice).
Also have MB Quart Vera VS05 +.....too much to list. Help me.
Posted January 07 2009 - 03:38 PM
Subwoofer frequencies are the lowest of the low and only have to carry signals between 10-120 hz which is almost flat. Any cable works. The only thing I have seen is that subwoofer cables seem to like really tight connections so you might check for this with your barrel connector and a 4 ft audio cable. If you really want to 'do it right' - you buy a 4 ft Monster cable that matches the one in the walls. Then you cut the RCA plug off of the wall wire and one side of your extension wire. Install a "F" connector (Audio cables are just coaxial cables) on each cut end and use a "F-to-F" barrel connector. The danger - finding a "F" connector that matches the dimension of the Monster cable. It is not designed to let you do this and knowing Monster - they use odd-sizes so you cannot string their cables together. (They want you to shell out another $200 for a longer cable after all). So start with a barrel connector and extension RCA cable first. Less risky.
Posted January 09 2009 - 01:42 AM
My sub cable goes from the RCA connector LFE output of my receiver to a 1/4" mono phono plug into my EQ. Then from 1/4" mono plug of the output of my EQ to an RCA to F barrell connector. There is 45' of RG-6 coax cable in the walls and attic. Then it goes from an F to RCA barrell connector. Then a single male/dual female RCA Y adapter. Each output of the RCA Y adapter goes to an RCA to 1/4" phono cable and into my pro amp. Using multiple cables and connections doesn't make a difference if you use quality cables and adapters. -Robert
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