How do you connect external effects to a mixer and a PC?

Hi everybody,

I work with a digital mixer (Roland Vm-3100pro), connected via optical cable to an RME-9632 soundcard, installed on a PC.
I use the mixer for the inputs and outputs and other than that I do everything “in the box”.
Lately I got my hands on a old Yamaha sampler (A-2000) that has some very nice effects. And that’s how I want to use it. As an effect module.
My main question is how could I run already recorded files through the effect module and record it back on the Cubase?


One way is to create an external
Effects loop from cubase so that the track you want to use the effects unit on has its output/s set to an output/s on your interface instead of the usual stereo out. Then connect those selected output/s to the input/s on your external effects unit. Then connect the output/s from your external effects unit to some free inputs on your interface and send them to another track.
This method requires you have enough assignable ins/outs on your interface


Google ‘cubase external effects send’ for propper info as i prob goofed up the explination .
Its deffo in the manual though dude.
What version of cubase are you running?

Thx for the answer LazyE,
I was trying to connect it a different way using only the mixer and it was creating a feedback.
Never thought of using the other I/O of the soundcard. It only has a stereo line In (RCA) & a stereo line Out (RCA) but I guess that’ll do.
I was going from the Aux sends of the mixer to the inputs of the effects and from the outputs of the effects to another channel on the mixer. And when I routed that channel to go in the soundcard I got the feedback of course.
I am running Cubase 5.

Still no luck connecting those things…
Anyone has any experience with RME-9632 and external FX?

You need an audio interface with enough I/O to do what you need, that card is an all in the box deal.

Great card, great quality but no I/O.

You could buy a good interface for what you’ll spend with expansion cards if you have the room for them:

1 Like

Or you could use something like this:

1 Like

But I have those breakout cables (BO9632CMKH) and also (BO9632).
So, I am thinking, since I’ve connected the mixer with the soundcard via optical, shouldn’t those RCA Line Ins & Outs of the card do the job with the exterrnal FX?

Yes if you have a S/Pdif connection and your external fx has S/Pdif I/O then that should work.

Unfortunately, the external fx doesn’t have SPDIF. (only by buying the optional panel)
But I was talking about the RCA Line Ins and Outs that aren’t used.
Couldn’t I use them as send/return?
From the RCA line out (LR) to the input of the external FX and from the output of the FX back into the RCA line in (LR)?
Shouldn’t that work?
Because I tried it but I couldn’t get it to work properly.
I could hear some the FX coming in but with some feedback or blended with the original signal. I don’t know exactly what was wrong…

That’s routing inside that mixer, right, that’s where you have a stereo pair of inputs and outputs that are RCA? Have to see if it can do that.

But yes it should work. When you hit VSTconnections in Cubase you would need to add an input bus and a return bus or set that up as an external instrument. What shows up when you make a new bus, what’s the list of available I/O? Does those RCA jacks show up there?

Not sure of the capabilities of that mixer.

Sorry if I wasn’t clear Tacman.:confused:
The free RCA inputs & outputs are on the breakout cable (BO9632CMKH) of the RME9632. (see 2 posts before).

So let me sum up to be clear and see if we can get a solution:

I am going
Out of the Mixer into the RME (optical)
Out the RME back into the mixer (optical) and out of the mixer into speakers (analog).

So that leaves the RCA ins & out of the RME free.
Free are also the AUX sends as well as many channels on the mixer.
The FX has only analog I/O.

Yes, those do show up!

That should work then.

Been a while since I used cubase but lots of info about how to set up an external effect, like this one:

You could do it manually, like create an input bus and an output bus then set a tracks output to that bus and then make a new audio track and set it’s input to the return RCA and monitor the channel.

But it’s a lot cleaner to make the external fx.

Good luck!

1 Like

Finally SUCCESS!!!
The problem was lying in the software of the soundcard.

I muted the hardware input of the totalmix in the RME software and I was able to record without any feedback.

I worked it out not by creating an external effect but by creating an input and an output bus. But as long as it works I am not touching anything! :slight_smile:

Thanks a lot for your help @tacman7 and @LazyE

1 Like