[mythtv-users] New house - any advise?
billymacdonald at gmail.com
Wed Jan 17 06:13:54 UTC 2007
On 1/16/07, David Brodbeck <gull at gull.us> wrote:
> Chris Ribe wrote:
> > Veering off topic here, but this sound like a really questionable
> > idea. CAT5 is cheaper than speaker wire because copper is expensive,
> > and CAT5 doesn't contain much copper. It just isn't designed for a
> > high current application like driving speakers.
> It depends on how long the run is. CAT5 has a resistance of about 3
> ohms per 100 feet -- which means 6 ohms for a pair. If the run is only
> 50 feet or so, I think it'll work fine. If it's more than that, the
> loss of volume may get excessive.
Remember your physics. Two conductors in parallel will have less
resistance than the lowest resistance of the pair. Two 3ohm wires in
parallel will have a resistance of 1.5ohms.
Unless I'm misunderstanding what was being suggested about pairing the wires.
I'm not sure if I'm advocating using cat5 or not. Personally I would
probably use speaker wire myself unless it's a low wattage second zone
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