My view is that loudspeaker cables should be as short as possible. Common length is 2m-2.5m.
Signal cables should be as short as possible but not shorter than 1m. 1.2m-1.5m for analog RCA/XLR is my preferred length for source. 2m-3m for amps. 8m-10m for subs. You can go longer XLRs if your equipment is 'balanced' end to end.
When it comes to power cables, some say there is a sweet spot at 1.8m-2.0m depending upon that application. I have had no negative effects using lengths as short as 600mm into a power conditioner.
There is no hard rule but shorter is better IMO. I'm not sure about any vendor suggesting that longer is better when it comes to wire.
Cool diagrams! ^^^^^^^
Signal cables should be as short as possible but not shorter than 1m. 1.2m-1.5m for analog RCA/XLR is my preferred length for source. 2m-3m for amps. 8m-10m for subs. You can go longer XLRs if your equipment is 'balanced' end to end.
When it comes to power cables, some say there is a sweet spot at 1.8m-2.0m depending upon that application. I have had no negative effects using lengths as short as 600mm into a power conditioner.
There is no hard rule but shorter is better IMO. I'm not sure about any vendor suggesting that longer is better when it comes to wire.
Cool diagrams! ^^^^^^^