Thanks everyone for the very useful information. Sounds like the conclusion is you’ll always need some way to attenuate the outgoing signal, some people use external mixers for this, others use a module at the “end” of their modular.
Also many people seem to use mixers in other places in their modular to manipulate signals. That would be totally new to me, so I guess I’ll have to experiment with it once I get something useful going :slight_smile:

Since I’d like to play the modular with just headphones I think I’ll go with a small mixer and output module inside my modular at the end of the chain.
Whilst the CV panning and effects send are things that seem very interesting to me I think there will already be enough stuff to learn/get to grips with, so I’ll postpone that till a later point.
My idea for the “end”/output part of my modular would be:

2hp 4 channel mixer -> pico DSP -> pico OUT

That way I have the attenuation if/when I need it, can add some effects at the end of the chain (or should that be before the mixer?) and can plugin my headphone or output to my line inputs when I want to without is costing me too much HP.
Does that make sense? Or are those crazy choices?

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Looks like you are trying to save space, if that’s the case, I would drop the picoOUT and just plug headphones into the picoDSP. If that’s the ‘end’ of your modular anyway.

That could be really bad advice, but I do it all the time. :thinking:

Yeah, I’m trying to stay within a single 104hp row for starters and would ideally like to spend not too much space on these necessary but not really interesting modules.

This is one of the things I’d like to know as well: how “bad” is doing something like this?
Can it break stuff? Or is the sound quality significantly worse vs a headphone out (assuming it has a decent amp)?

No idea about sound quality or anything, but always find it handy (especially with headphones) to have an easy to grab volume control for when things get a bit toooo loud - sometimes unexpectedly! Only really needed when you’re going straight to headphones or monitors rather than into a mixer or something I guess.

I wouldn’t recommend plugging headphones in a modular level output without some sort of attenuation. Be careful with your ears.

You’d lose all the stereo from the PicoDSP too.

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Yes care would definitely have to be taken – my thinking was that using the 2hp mix would be the attenuation, the DSP has a wet/dry amount so that would be alright, and getting stereo out from the DSP to headphones would be a mono l/r to stereo headphone adapter. Wouldn’t that work just fine?

I remember getting intellijel in/out module, that I never use anymore (also for space reasons).
Not pushing one way or the other though! I’ve also always been curious if there was anything technically wrong with doing that.

It’s never a “good” idea to plug headphones into anything not designed specifically for headphones - headphone outputs usually have large-ish capacitors to help drive them, or other such things. Some headphones tolerate bad practices better than others.

If you already have a small mixer with a headphone output, going from PicoDSP to that, then to headphones, would be fine, but if you want to use headphones with the modular directly, you really should have something with a true headphone output.

I’d also note that I personally wouldn’t want to be actively mixing 4 knobs in 10mm of width. If you mostly want something you can just set and leave, I’m sure it is fine, but often people are “playing” their mixers and making adjustments on them a lot, in which case something slightly larger would likely be more comfortable.

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OK, it seems pretty clear that it’s a good idea to have some final volume control to make sure to not destroy my ears and have some decent outputs to a headphone. So I’ll definitely include that.

I figured I’d start with mono inside the modular for now, and only output to stereo. Mainly because of simplicity, but it will also save some room over stereo.
Or doesn’t that make sense?

Yeah, this will be a trade-off I guess. I’m not so sure about it either.
Maybe it makes more sense to just go for a slightly larger quad VCA and use that as my final mixer as well? If I’m not doing anything with the signals after the VCAs having the mixer doesn’t make a whole lot of sense, right?

The way most people use audio VCAs (as the final stage before output or effects), I think this plan makes sense. You can still use each channel as a lone VCA, too, and even use 2 channels as mixed VCAs and 2 channels to control CVs, as an example, at least on the three that I mentioned earlier (Veils, Quad VCA, Tangle Quartet). uVCA II also mixes if you only want two channels in less space.

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I’ve never actually considered getting a dedicated mixer module or using my Mackie because I not only have VCA’s but a lot of my modules have volume pots that I use too. I have many options for controlling mix levels:

  • Erica Synth Quad VCA and Optomix already gives me 6 ways to control volume in an 18hp space.
  • If I’m not using a VCA I’m usually running through something that has volume control like the MMG filter, Belgrad filter, Echophon, etc… Of course this can effect things other than volume but that can also be nice.

I’m also always running multiple inputs into Ableton via Expert Sleepers. I have a very cheap Novation controller for Ableton with faders on it so sometimes I will record 4-6 simultaneous tracks in and mix by writing MIDI automation. This can be nice because it’s a non-destruction process. Also can control panning. At any point later on I can tweak the automation. Much more flexible. If that’s something you care about.

I’m just spewing current thoughts, hope I didn’t miss the point of this conversation.

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Not at all! :slight_smile: Very useful info and I like the suggestion to use a DAW for non-destructive panning after the fact, didn’t think of that myself.

So, the mixer is out and the Tangle Quartet is in :slight_smile:
And it seems one can never have enough VCA’s, so I’ll probably get some more eventually :wink:

Thanks for the suggestions/discussion so far everyone, it’s very helpful to someone who doesn’t know all this stuff yet :slight_smile:

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Have a look at
https://llllllll.co/t/minimal-mixers/189

I’ve just ordered a uraltone diy mixer as it will make my setup more mobile and let me play on the couch! But has some features that I really want (FX sends being the main draw).

http://en.uraltone.com/kits/studiolaiterakennussarjat/uraltone-euro-rack-series-tube-sounding-micro-mixer-rakennussarja.html

The Pittsburgh system interface also appealed and gear4music had them in at £150ish. But ultimately I want to build as much as I can for my system.

Sorry to be quoting myself, but after looking at some video’s and checking the specs/manuals I think I’d prefer to go with either an intellijel Quad VCA or a Bastl Instruments Quattro Figaro.
Mainly because of the separate CV attenuation and overal voltage/offset controls which the Tangle Quartet doesn’t offer.

Any pro’s or cons for one over the other? The Bastl has some more outputs, both audio and CV, but it’s obviously smaller/more fiddly and I’m not sure if their products are of the quality level I’d expect, mainly because their pots seem to be PCB instead of panel mounted, making them quiet wobbly, at least from what I’ve seen so far. Don’t think I’ll like that very much.

Thx! I’ve got that topic firmly bookmarked :wink:

I don’t own either, but I’ve decided that the Quad VCA would be the one of any of the choices I am aware of based on some of what you mentioned and the fact that my uVCA was flawless. I don’t think I could get into the Bastl’s odd layout.

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I’ve been thinking about my output strategy.

Currently have have a now discontinued Meng Qi please exist and the outputs go into my mixer/soundcard. The benefit of this is I get 4 sturdy 1/4" lineouts. It’s not a mixer but the audio interface does that part.

From time to time I consider getting a proper “mixer” to combine all of my outputs with FX sends and honestly I usually find them to be WAY too expensive. I just saw the new Frap Tools Quad Stereo Console and while it’s beautiful, compact, and feature-laden it’s also the price of 3 second hand Mackie 1604 studio mixers (each channel has a 3 ch eq, mute, solo, 4 fx sends, full sized faders, etc).

Any of you just run your sources out to a mixer like this with the proper cables or adapters?

Lots of people do. As has been noted in many places on this forum: an outboard mixer is exponentially less expensive than doing it in rack, but at the cost of space and (potential) convenience.

I’ve been looking at the QSCGM as well, and yeah. It seems like a good deal within the eurorack ecosystem (cheers, @mdoudoroff) , given its feature set, but is also not going to be able to compare to all of the features you can get in an outboard mixer for a fraction of the price.

I’ve often used an external mixer with my eurorack. Recently I’ve been feeling simpleminded and just use some combination of small mixer modules & a Worng Soundstage with my output module (Vermona TAI-4; I could easily just use the Soundstage --> soundcard, but I got the TAI-4 cheap and I just like it)

OTOH I’ve seen people using something like the Befaco Hexmix system in small (84-104hp) travel cases to great effect. On paper/modulargrid it always seems a like a huge amount of mixer, but up close/in person the way I’ve seen people use it I could see a case for it.

I’ve been considering the XAOC Praga for this duty, although it is quite pricey and only has 4 channels, meaning that probably I would need some submixing before it as well. Anyone has any experience with it?

I really liked it. Some minor quibbles: The mute buttons can be a bit tricky to hit without bumping the volume knobs. Also the per channel mini VU meters are helpful, but without HRAD (which I have not used), there’s no summed VU meter. My only serious qualm was the inability to send each channel to both effects (as I use reverb and delay as sends). Otherwise it felt like a high quality mixer, and occasionally I look at it fondly on ModularGrid. The soft clipping on the output is something I’ve missed as I mix live - a very nice feature!

One point to add, is that Eurorack has gotten more stereo since it’s release, and one of my hesitations in reacquring it is the lack of a stereo channel (aside from using a stereo return and HRAD - which, to me, is unideal). I feel like XAOC would benefit from releasing something like the QSCGM as a complement to Praga and HRAD.

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That Frap tools QSC looks pretty perfect, thanks for pointing it out! It also includes mutes, stereo inputs (or dual mono with crossfading), four VCA’s and two channels of CV controllable pan and aux sends (although only to one of the two aux sends and a different one for each of the two channels).
All in all this is about the same size as my current matrix mixer + four VCAs combo with a to me easier control scheme (channels vertical vs matrix mixer) and some additional functionality. Seems like a win to me :slight_smile:

It also just showed up at modulargrid :slight_smile:

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