Speaker Cable Length

You could easily go 100 feet with #14 speaker wire.

Typical twisted pair inductance is in order of 500nH/m.  At 100ft=30m inductance would be 15uH making reactive impedance at 20kHz  almost 2 ohm 
(not to mention 0.5 ohm resistance)

Shorter is typically desirable, but runs of this length shouldn’t pose much issue.   I run about 28’ with 12 awg...it’s not a problem. The specs of the wire play some role, but I wouldn’t be overly concerned.

When I do long runs I like heavy gauge wire .worlds best cables makes 7 gauge for sale on Amazon. Your transparent ref is thick and hard to beat. I have some 4 gauge i built for a long run. Enjoy the hunt.

Optimal speaker cable length balances practicality and sound quality, with shorter runs preferred and wire gauge adjusted for longer distances to minimize resistance and signal loss

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Recommended Cable Lengths

For most home audio setups, shorter speaker cables are better because they reduce resistance, capacitance, and potential signal degradation. Suggested lengths are:

• Optimal: 3–10 feet (1–3 meters) for best audio fidelity 

   

   

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• Acceptable: Up to 25 feet (7.6 meters) without noticeable sound loss 

   

   

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• Maximum: Generally, 50 feet (15 meters) is the upper limit, especially for lower-gauge wires or low-impedance speakers 

   

   

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Wow!  Thanks for the continued feedback!  Extremely insightful and helpful!!