How do you measure speaker wire gauge?
Correspondingly, is 18 gauge wire OK for speakers?
The manual states that up to 20 ft an 18 gauge wire is fine with 16 and 14 gauge for longer runs. I would buy the lower gauge and put connectors on the ends for general use and if you are not a critical listener then the 18 gauge is probably just fine.
Secondly, how many watts can 16 gauge speaker wire handle? As with the power wire, the longer the run and the more current you're pushing through it, the larger size you should use. For example, if your amp is in the trunk and you're sending 100 watts to your front speakers, 14-gauge speaker wire is a good call. But if the amp is only 50 watts, 16-gauge would be fine.
Simply so, does speaker wire gauge matter?
Thicker wires are better: It's true that for long runs, thicker wires are better at reducing the effects of resistance. But for most set ups (those with speakers within 100 ft of the amplifier), 16-gauge lamp cord is fine. For speakers 100 to 200 ft. from the amp, experts suggest use 14 gauge.
Does speaker wire gauge affect sound quality?
Generally speaking, resistance starts to have an effect on the performance of a speaker when resistance is greater than 5% of the speaker's impedance. The thicker a wire or the lower the gauge, the less resistance. It is therefore a combination between speaker impedance, length and gauge that affects the resistance.