Hi, I have an Alesis MultiMix 4 mixer and a single QSC CP8 speaker. The manual for the mixer says to use 1/4 TRS for the main outs. And the speaker has a female XLR input. So my question is, if I only have one speaker, should I get a dual 1/4" TRS cable that terminates at the other end as a male XLR? Is that the proper connection when I only have one speaker?