Reply to 1 of my studio monitors is only playing half as loud as the other...

mixer-pionner-djm-500-r.jpgI have a pair of KRK Rokit 8s, and i used to connect them bot via XLR to XLR, from my monitors to the XLR slots in my pioneer DJM 500 mixer. i've recently moved my set up about and now require longer cables, I had one 4metre female xlr to TRS cable, im using that for one monitor (male xlr from master (XLR outputs) output TWO of my mixer to TRS into my monitor)

and i brought a 6metre Van Damme Male XLR to TRS cable and use that for my other monitor (male XLR from monitor to the master (TRS outputs) output THREE of ym mixer, and this is the monitor that is only playing half as loud, it is >really< noticeable.


I brought a new male xlr to trs cable for the quiet monitor and tried it out toevening and no luck, still quiet. I have tried switching monitors about, switching the cables around etc, still the one that is going from the TRS mixer master outputs, is the quiet one.

Could this be a problem with the way i have connected one of my monitors up to my mixer?
Both my monitors are not being connected to the same 'master output' of my mixer, because i have a female AND a male XLR to TRS cable, would this cause this problem?

Should i send both male XLR cables back and get the same female XLR to TRS cable as the one used for my working monitor?

Both worked fine when I had XLR to XLR...

Attached image of mixer rear, so you can see the master outs.

Ta