It will lower the resistance and not do much else the power will follow the path of least resistance.
Double up on speaker cables
I have 2 sets of good speakers cables. Tara Labs and Audioquest. The Tara Labs are detailed and airy. The Audioquest carry more mid bass but are less airy and detailed. Can I connect both at the same time and benefit from both? One with spades and the other with bananas! My speakers are Rockport Atria 2’s and are not bi-wireable.