I did something stupid - no speaker cable

[Stub Mandrel]

On 15/09/2021 at 21:48, beans-on-toast said:

There are those that buy long speaker cables then coil them up and tie them to keep them off the floor. Not the same inductance as a curly instrument cord.

 

No inductive effect with coiled speaker leads (or mains leads) as the current flows both ways.

 

The danger is overheating at high power due to reduced airflow around the coils.

[agedhorse]

One of the biggest issues with the coiled cords is that they are usually manufactured with twisted "foil wrapped around a fiber core" tinsel wire which has a smaller than expected cross sectional area. What appears to be say 18 AWG may in fact be 22 AWG in reality. (AWG = American Wire Gauge).

 

Because of the cylindrical wrapping and twisting in the tinsel wire fabrication, the inductance can also be higher and depending on how it's fabricated (twisted or braided), even the capacitance can be higher too.

 

Edited September 17, 2021 by agedhorse

[beans-on-toast]

Excessive weight from a too long speaker cable can be a problem. Speakons offer some strain relief, ¼” plugs are more of a problem although some do offer some relief. A looped speaker cable should have the loop supported to relieve stress on the connectors.