Doesn't hurt. A shorter signal path from your amp to the speaker is thought my some to be a benefit. Those who use mono block amps claim that it is preferable to longer cable runs in addition to having separate power supplies and reduced feedback. Speaker cables can get quite expensive and I suspect you may be able to buy a better cable in a shorter length to maximise the benefits of your chosen amplifier. As with most things in audio there will be a variety of opinions most without any empirical evidence for their claims, so take any and all opinions with a proper amount of skepticism until you try it for yourself in your system. Good Luck!
