Before I do something stupid... cables.

Discussion and support for MOTU's Volta software.

Moderators: Kent, stretta

Post Reply
User avatar
Monobass
thonk.co.uk
Posts: 8750
Joined: Fri May 29, 2009 5:39 pm
Location: Brighton, UK

Before I do something stupid... cables.

Post by Monobass » Fri Jan 15, 2010 1:30 pm

Tell me i'm doing this right.

I just bought volta and will use it with my motu 828mkii and moog voyager.

I've taken a balanced cable and disconnected the ring in one of the jacks, the "disconnected ring" jack goes into the moog and the "connected ring" jack goes into motu right?

User avatar
alt-mode
Wiggling with Experience
Posts: 337
Joined: Sat Feb 07, 2009 11:31 am
Location: Massachusetts

Post by alt-mode » Fri Jan 15, 2010 1:50 pm

It doesn't matter. As long as one of the rings is disconnected, you will achieve the correct result.

User avatar
Montag
The Wizard of Gates
Posts: 370
Joined: Mon Sep 01, 2008 12:09 am
Location: bay area

Post by Montag » Fri Jan 15, 2010 2:06 pm

What's this about disconnected rings?

I'm not using volta or silent way, but just curious what this is for?

User avatar
alt-mode
Wiggling with Experience
Posts: 337
Joined: Sat Feb 07, 2009 11:31 am
Location: Massachusetts

Post by alt-mode » Fri Jan 15, 2010 2:13 pm

See this discussion:
viewtopic.php?t=4104&start=0

MOTU audio interfaces have balanced TRS outputs but you want a TS unbalanced DC voltage. TS-TS cables will work but there is some concern about forcing the sleeve to ground on the interface over time.

User avatar
meridic
Common Wiggler
Posts: 202
Joined: Tue Dec 08, 2009 12:55 am
Location: frozen depths of nowhere

Post by meridic » Fri Jan 15, 2010 2:58 pm

TS-TS cables will work but there is some concern about forcing the sleeve to ground on the interface over time.
Concern from where? I am trying to think of a differential line output driver that would get killed by a standard TS cable being inserted in place of a TRS. I can't. Chances are their output stage is just a pair of opamps, perhaps four opamps, both topologies just become single ended with a mono cable plugged in. In fact most topologies will just become single ended in these circumstances. Some topologies will become debalanced and drop performance, but I doubt this is the case for the MOTU, even if it was you do not need anything near studio specs for this use and it doubtfully will harm the interface.

Any piece of equipment that can not live through most anything with the same connectors being plugged into it is poorly designed. If this really was an issue MOTU would have just put only XLR outs on it and raised the price calling it "pro studio" since it only delt with XLR.

User avatar
doctorvague
ole fuckity fuck
Posts: 3095
Joined: Fri Nov 14, 2008 5:40 pm
Location: New Mexico, USA

Post by doctorvague » Sat Jan 16, 2010 8:12 am

meridic wrote:
TS-TS cables will work but there is some concern about forcing the sleeve to ground on the interface over time.
Concern from where? >>>
MOTU. They designed the interfaces and they're the ones saying that.
It's obviously not money motivated because they're not trying to sell special cables.
Maybe it's only a very slight chance of damage over a long period but they'd still like to cover their ass from a bunch of customers whose interfaces started going south after a year or 2 of using Volta.

User avatar
Monobass
thonk.co.uk
Posts: 8750
Joined: Fri May 29, 2009 5:39 pm
Location: Brighton, UK

Post by Monobass » Sat Jan 16, 2010 8:28 am

Yeah and it's hardly much extra bother/cost, I don't see the point in not following the manufacturers advice...

Post Reply

Return to “Volta”