Using some very long balanced Subwoofer cables.


I now own 4 JL Audio F-113 subs and would like to run the front 2 as Master (s) and the rear 2 as Slave units. This would mean that each rear sub would have 75 feet of a balanced XLR cable running to them. The front has about 15 feet to each sub.
This seems to me to be too much cable. Is this too much cable?
And no, I will not be using SR cables just Monoprice to the rear subs.

ozzy
128x128ozzy
Hi Ozzy,

16 gauge is more than adequate. In fact even 24 gauge, which is sometimes used in XLR cables, would be fine (although I suppose the presumably greater physical fragility of the narrower gauge could conceivably be an issue in your application).

The input impedance of the balanced input of the slave subs is 10K. The combined resistance of the two 75 foot signal conductors in the 16 gauge cable will be 0.6 ohms, which will result in a loss of 0.6/(10,000 + 0.6) = 0.006% of the signal voltage. Which is a loss of about 0.0005 db :-)

Best regards,
-- Al

Al,
Thanks,
Only one 75 foot cable will be used on each master to slave unit.
I should have them soon to try.

ozzy
Only one 75 foot cable will be used on each master to slave unit.

Understood.  But the 150 foot combined length of the two signal conductors in that one cable is what counts, in terms of resistance and loss of signal voltage.

Enjoy!  Best regards,
-- Al


XLR cables all sound pretty much the same.....tried many, and as long as you are balanced, you're good to go.