I didn't realize that cable length affects phase shift. I stumbled into an interesting article by Empirical Audio: Is it better to have short interconnects and long speaker cables or visa-versa? He measured rolloff and phase shift and came to these general conclusions:
- Regardless of the cost of interconnect and speaker cable, it is always better to make the interconnects shorter and the speaker cable longer.
- Inexpensive interconnects should be limited to 1 meter or shorter.
- More optimized interconnects can be as long as 15 meters.
- 11 AWG ZIP used as speaker cable should be limited to 12 feet or shorter.
- More optimized speaker cables can be as long as 40 meters.
- Regardless of the cost of interconnect and speaker cable, it is always better to make the interconnects shorter and the speaker cable longer.
- Inexpensive interconnects should be limited to 1 meter or shorter.
- More optimized interconnects can be as long as 15 meters.
- 11 AWG ZIP used as speaker cable should be limited to 12 feet or shorter.
- More optimized speaker cables can be as long as 40 meters.