I have a Behringer Xenyx 1002FX mixer and I want to connect it to my speaker (Protech CB400A). The mixer's interfaces of "Main Out" are Mono. But I have a TRS cable (PL Stereo) to XLR Male. Can I connect this cable although the interface is Mono?

Thanks in advance!

  • Maybe, maybe not. It depends which wire connects the R on the jack to which pin on XLR. Nothing will go bang if you try it, but you may need to simply disconnect the wire from the R on the jack.
    – Tim
    Jul 22, 2020 at 13:42
  • "Mixer to speaker" sounds like it's an integrated amp in the speaker - it probably would much prefer a balanced line. Unbalancing it might be noisy & prone to interference. How far is your cable run? [A quick google sys yup, that's a 400w integrated amp.]
    – Tetsujin
    Jul 22, 2020 at 14:58
  • Tetsujin... You're right. And the length of my cable is 3 meters.
    – Zmani
    Jul 22, 2020 at 15:49
  • @Tetsujin - I have several similar set ups, and have no need for a balanced line. Simple single core coax works fine. That apart, the mixer doesn't have a balanced 'out'.
    – Tim
    Jul 22, 2020 at 16:24
  • 2
    You really ought to properly unbalance the cables if there's no alternative - you don't want meters of stray antenna in there.
    – Tetsujin
    Jul 22, 2020 at 17:21

1 Answer 1


Can you use that cable? Probably. Should you? Probably not.

There are TS->XLR cables available, with the pin short-circuit made. You can DIY it with a quick Google.

Alternatively, you can run from the mixer into a DI box with a TS->TS cable (1/4 Mono), then come out of the DI box with an XLR->XLR. That XLR cable will be balanced, and can be as long as you might ever need.

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