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TD-9 line outputs, do they require TS or TRS jacks?

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  • TD-9 line outputs, do they require TS or TRS jacks?

    I've got a Roland PM-30 connected to my TD-9 R+L(Mono) outputs via a dual mono cable (TS jacks) which came with the PM-30 but it never sounded right, no seperate L+R, both connections give me a mono sound. Of course it does sound fine if I use a stereo cable between the headphones output and the PM-30 stereo Vdrums input. But then I would need to disconnect the headphones if I want to connect to the PM-30. I would prefer to keep the phones and the PM-30 connected, so I only need to switch on the PM-30 if I want to play over the speakers.

    The PM-30 requires dual mono jacks, and the channels are nicely separated if I connect something else. But I'm having doubts at to what jack is needed on the TD-9 side. The documentation is a bit ambiguous about this. I would expect the L+R outputs to just require mono jacks, but in the manual it states: 'Output Jacks (L(MONO), R) (Stereo 1/4 inch phono type)'.
    This to me implies that even though it's a mono signal you do need a stereo TRS jack on the TD-9 end.

    On the other hand: the diagram on page 17 ('Connecting your audio equipment') also indicates mono jacks and the block diagram on the last few pages of the manual also seem to show mono outputs. I do understand that L(Mono) implies that if you do not connect something to the R, the L output jack should output L+R summed, as can be seen in the block diagram.
    Do it me it seems that the mono TS plug shorts the L+R signal, and therefore now returns a mono signal on both outputs.

    I'm about to replace the plugs on the cable I have, but does anyone now more about this?
    E-kit: https://www.dropbox.com/s/vpx92wez8v...3558.jpg?raw=1
    A-kit: https://www.dropbox.com/s/vxkwbj1rv7...345-1.jpg?raw=1
    TD-30, KT10, PD-105/125, 13" DIY + BT-1, VH-11/CY14/15/5, PM-30, HD-280 Pro

  • #2
    I just soldered TRS plugs on the TD-9 end of my dual mono cable, and now it sounds fine and I can pan a pad from left to right. So it looks like the TD-9 has TRS instead of TS outputs or the TS outputs are connected wrong internally and both sum L+R.
    E-kit: https://www.dropbox.com/s/vpx92wez8v...3558.jpg?raw=1
    A-kit: https://www.dropbox.com/s/vxkwbj1rv7...345-1.jpg?raw=1
    TD-30, KT10, PD-105/125, 13" DIY + BT-1, VH-11/CY14/15/5, PM-30, HD-280 Pro

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    • #3
      At some point in my trials with electronic stuff, I just started using TRS for everything, and then there is no need to wonder. A TRS cable in a TS situation will act just like a TS cable. However, not the other way around of course. Since TRS cables seem to cost the same as TS, I just buy TRS.

      Maybe there is some corner case situation, but I haven't run into one. TS cables ALWAYS gives me problems.
      Yamaha DTX-502 / (3) PCY155 Cymbals / HH65 HH Pedal
      Roland KD-9 Kick / DIY Snare (1 zone with DTX...)

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      • #4
        I agree. I always just buy TRS even for guitars.
        "It makes sense if you dont think about it"

        Mimic Pro, SPD-SX, 2-QSC K-10s, K-sub, Yamaha mixer, and a bunch of other expensive cool things!

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