Speaker wire


I have a pair of Klipsch Chorus speakers with a sensitivity of 101 Db at 8ohms. What is the reccomneded guage for speaker wires for this speaker, and what are some of the better known brands?
samjohnson1

Showing 1 response by almarg

Assuming that you want the cable to behave in a neutral manner, the main criterion is that you want the resistance of the cable to be a very small fraction of the speaker's minimum impedance at any frequency.

The post in this thread dated 7-6-07, 12:16 p.m., quotes an old review as indicating a minimum impedance of 4 ohms, which occurs at 140Hz.

IMO, 1% of the minimum speaker impedance can generally be expected to be a comfortably low cable resistance. It can be calculated from this wire gauge table that 13 gauge wire corresponds to a resistance of 0.04 ohms, for the 20 foot round-trip distance the signal has to travel from amplifier to speaker and back. A lower gauge number would be even better, of course.

Bob's suggestion of the Belden-based Blue Jeans cables is a good low-priced choice, IMO. Anti-Cables or Vampire Wire are other good low-priced choices, IMO. The 14 gauge alternative offered by Blue Jeans, as well as the 14 gauge suggestion above, while not meeting the 1% guideline I suggested may still have resistance that is low enough to be acceptable.

For longer runs, and/or for speakers having impedances that drop to low values at high frequencies, inductance can also be a significant factor, but I would not expect it to be significant in your situation.

Regards,
-- Al