running a mult w/o imedpance matching/quality loss

alphajerk · 7th August 2005

im setting up a studio to track a new album and have been thinking about my setup for it. i track fully in the DAW and will be using outboard preamps for the session along with some other kinky gear.

BUT the issue of monitoring during tracking has come up and i was thinking about dragging a behringer board [flame on, i dont care] strictly for running stuff to headphone distro [furman more me system] and to run output to a webcast we are thinking about doing for the tracking session.

so i was wondering.... if i have a patchbay that the preamps are running into with them "normalled" into the ADC's... can i simply run the other side of the line in out to the boards inputs to monitor off of and create submixes on for the band without affecting the signals sent to the convertors?

tINY · 8th August 2005

Basically, yes. The high impedance of the board and converter inputs will not load the low impedance output of the pre-amp.

If you have obsolete pre-amps with transformer coupled outputs expecting to see a 600 ohm balanced load, you might see some wierdness. Adding a second high-impedance input to this won't change it, though.

-tINY

alphajerk · 8th August 2005

so no deleterious effects in doing this? last thing i want would be to compromise what im feeding in just to monitor.

brianroth · 8th August 2005

You should be able to mult one line level source to several "bridging" line inputs with no problems. I'm assuming everything involved has balanced I/O.

Bri

alphajerk · 9th August 2005

yes, all balanced. whew, at least one idea is going right this week for the project. now i am remembering why i dont do temporary studio setups

but its still fun despite the headaches.

paully · 14th August 2005

There's a good discussion that touches on what you're doing going on here:

http://acapella.harmony-central.com/...readid=1008291

Give it a look. Paul

7th August 2005	#1
alphajerk There is only one Joined: Jun 2002 Location: asheville NC Posts: 5,260 Thread Starter	running a mult w/o imedpance matching/quality loss im setting up a studio to track a new album and have been thinking about my setup for it. i track fully in the DAW and will be using outboard preamps for the session along with some other kinky gear. BUT the issue of monitoring during tracking has come up and i was thinking about dragging a behringer board [flame on, i dont care] strictly for running stuff to headphone distro [furman more me system] and to run output to a webcast we are thinking about doing for the tracking session. so i was wondering.... if i have a patchbay that the preamps are running into with them "normalled" into the ADC's... can i simply run the other side of the line in out to the boards inputs to monitor off of and create submixes on for the band without affecting the signals sent to the convertors? __________________ "i must invent my own systems or else be enslaved by other men's'" william blake __________________________ email: barrett [at] alphajerk [dot] com

8th August 2005	#4
brianroth Lives for gear Joined: May 2005 Location: Oklahoma City Posts: 1,818	You should be able to mult one line level source to several "bridging" line inputs with no problems. I'm assuming everything involved has balanced I/O. Bri __________________ Brian Roth Technical Services Oklahoma City, OK www.BrianRoth.com

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8th August 2005	#2
tINY Gear Guru Joined: Jul 2004 Location: Orygun Posts: 10,233	Basically, yes. The high impedance of the board and converter inputs will not load the low impedance output of the pre-amp. If you have obsolete pre-amps with transformer coupled outputs expecting to see a 600 ohm balanced load, you might see some wierdness. Adding a second high-impedance input to this won't change it, though. -tINY

9th August 2005	#5
alphajerk There is only one Joined: Jun 2002 Location: asheville NC Posts: 5,260 Thread Starter	yes, all balanced. whew, at least one idea is going right this week for the project. now i am remembering why i dont do temporary studio setups but its still fun despite the headaches.

14th August 2005	#6
paully Lives for gear Joined: Dec 2004 Location: Northern New Jersey Posts: 562	There's a good discussion that touches on what you're doing going on here: http://acapella.harmony-central.com/...readid=1008291 Give it a look. Paul