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DC Output
Posted: Thu Jan 07, 2010 12:13 pm
by Shayne White
Hi,
Does anyone know if the A16 Ultra supports DC ouput? I have an analog modular synth that I want to control with Motu's Volta plugin, but MOTU says it requires DC output. Has anyone tried this?
Thanks!!
Re: DC Output
Posted: Thu Jan 07, 2010 5:24 pm
by doktorfuture
I read someplace that you can buy an A16 ultra that isn't capacitively coupled, so can do the DC that Volta needs.
Re: DC Output
Posted: Fri Jan 08, 2010 9:22 am
by at0m
If the A16, like the Behringer ADA8000 (
schematic), uses caps to filter the DC, you could just short those...
That's a DIY hack, and I don't know weither that's possible on an A16 - haven't looked inside of that one yet. But I suppose it'll be quite similar. Sure, it would void your warranty, but if you know a bit of DIY, you will quickly see weither that's possible.
Btw, found that link
here.
Re: DC Output
Posted: Fri Jan 08, 2010 9:25 am
by Fluxpod
You could also buy some cheap old motu box.I have seen many go around 100€.

Re: DC Output
Posted: Fri Jan 08, 2010 12:22 pm
by xite knight
Fluxpod wrote:You could also buy some cheap old motu box.I have seen many go around 100€.

I agree. Just keep in mind that some older motu models seem to have lower maximum voltage output than newer models. I don't remember how I found the linked sheet but it may help others to choose according to needs.
http://66.92.94.107/misc/voltage_worksheet.pdf
Re: DC Output
Posted: Sun Jan 10, 2010 9:03 pm
by Neutron
Just sit tight, Capacitor and I are working on multiplexed CV output with 4-8 channels per audio line, and it works with AC coupled converters.
its just a scope device at one end and a small electronic box (MCU, and a small amount of other chips)
it will probably cost less than $100 to build.
Re: DC Output
Posted: Wed Mar 24, 2010 11:23 am
by levlhed
Did you get anywhere on this?
Re: DC Output
Posted: Wed Mar 24, 2010 11:47 am
by Neutron
I had to stop for a while. I did not have anything voltage controlled with an accurate 1v/oct tracking to test with it. that will soon be remedied though.
Re: DC Output
Posted: Wed Mar 24, 2010 12:56 pm
by the19thbear
let us know asap

Re: DC Output
Posted: Wed Mar 24, 2010 1:33 pm
by capacitor
I've been waylaid with a double whammy (looking for new contract PLUS moving after 5 yrs). Neutron is the man right now. All I can hope is to help enhance/test/document, once my ducks are back in alignment

Re: DC Output
Posted: Wed Mar 24, 2010 3:17 pm
by dawman
Hang in there Capacitor...
Always darkest before the Dawn.
Re: DC Output
Posted: Wed Mar 24, 2010 10:12 pm
by valis
Using Scope Mod/Flexor etc to leverage my way into hardware modules (meaning it could be usable without so many initially) or even just to add a bit more fun to my studio has occurred to me before. I would be interested in your progress on this as well.