Originally Posted by kgveteran
What are the effects of longer wire length, provided the gauge meets the length. When ,talking subwoofers, do you actually lose control of the driver with long runs. I have always used very short runs for subs.
Speaker cable has 3 properties that can affect the sound quality of the speaker:
The speaker has similar properties, and the overall effect of the wire and the speaker is based on how the entire assembly works as an electrical network.
The properties of most cables and speakers are such that the capacitance of the wire has minimal and surely inaudible effects.
The inductance of the wire may have some noticeable effect on the sound at the highest frequencies, although it is usual for many of them to cancel out.
The resistance of the wire has the potential to affect all audible frequencies and needs to be worried about the most.
Has anyone actually measured and recorded graphs showing a change in the FR due to long runs of wire......
Yes, but if the wire has a reasonable length (25-50 feet max) and is thick enough to keep its resistance reasonable (12 gauge is both economical and usually enough to minimize audible effects) these changes are minimal.
If your system includes an automated system optimization facility (Audyssey, MCACC, YPAO) it will automatically compensate for reasonable losses in the speaker cables even if they would otherwise be audible.
There are two common ways to look at the effects of the impedance of a loudspeaker and the source impedance of the power amp and the speaker cable. One is to treat the system as an electrical network which is usually more intuitive. The other is to introduce an artificial parameter known as "damping factor" which tends to be less intuitve.