Multicore Snakes and Foldback

3 replies [Last post]
Mark Jones
Offline
Joined: Oct 25 2000

Hi, this maybe a dumb question but...I 've just bought a Studiospares snake with 16 balanced XLR inputs and 4 Foldback Sends. Is it safe to use headphone-level signals (i.e. not line level) as foldback without endangering the inputs? It worries me because their blurb says you can use the Sends as an extra 4 inputs, which would suggest they're earthed and joined to the same buss as the inputs? I opted for the XLR version sends rather than 1/4" jack. Any advice appreciated, thanks, Mark

John Willett at Home
Offline
Joined: Jun 29 2001

Didn't I just see you on the Sound on Sound Forum here?

John

Mark Jones
Offline
Joined: Oct 25 2000

Yep, thought I'd hedge my bets! I think I used the wrong term in 'buss'. I'm just worried there's a common earth connection running through all the inputs, which of course if it's shared with the Sends, risks dumping a high headphone voltage across the inputs. Daft yes, but we've all seen worse, I'm sure. It's just the bit about using the Sends as extra inputs that has spooked me. I'm gettin' my screwdriver out, I think.

P.S. Went to see Roger Ireland on Sunday (could have stayed all day chatting!!) and am now the proud owner of a 20" parabolic reflector - thanks again!.

John Willett
John Willett's picture
Offline
Joined: Jun 1 2001

I'm glad it worked out OK on the Parabolic.

About the snake - headphone levels are very similar to line levels. But, if it was me, I do not like to run reverse feeds down the same multicore when recording for fear of crosstalk. I would use a totally separate cable.

For live it's a different matter because any low level crosstalk is most often not noticed so much.

John

John
 
A picture tells a thousand words, but sound tells a thousand pictures.