Where can I find an economical buffer circuit to split one mic input into
two outputs, running to both FOH and side stage monitor desks? Since it's
for our church, I'm going to have to build a box myself. Any thoughts?

"Han Gartner" wrote in message
. ..
Where can I find an economical buffer circuit to split one mic input into
two outputs, running to both FOH and side stage monitor desks? Since it's
for our church, I'm going to have to build a box myself. Any thoughts?


I run a 50 ch passive split in venues all around the north east, one leg is
300 feet one leg is 50 feet(Radial convertable mfg, the JDI folks)
I have ground lifts on each channel but a simple hard wire split
in thousands of events in all kinds of enviroments , indoor, outdoor
I have never had a issue with the passive nature of this snake
so based on that experiance I would say you shouldn't have any issues with a
simply Y hardwire split for your church

George Gleason wrote:
"Han Gartner" wrote

Where can I find an economical buffer circuit to split one mic input into
two outputs, running to both FOH and side stage monitor desks? Since it's
for our church, I'm going to have to build a box myself. Any thoughts?


I run a 50 ch passive split in venues all around the north east, one leg is
300 feet one leg is 50 feet(Radial convertable mfg, the JDI folks)
I have ground lifts on each channel but a simple hard wire split
in thousands of events in all kinds of enviroments , indoor, outdoor
I have never had a issue with the passive nature of this snake
so based on that experiance I would say you shouldn't have any issues with a
simply Y hardwire split for your church

Passive splitting (i.e. basically just a Y cable) is commonplace. It
works almost all the time and with few exceptions the audio quality
implications are inaudible to negligible. I would have no reservations
about using a passive split to run monitors/FOH in a church.

//Walt

"Han Gartner" wrote in message
. ..
Where can I find an economical buffer circuit to split one mic input into
two outputs, running to both FOH and side stage monitor desks? Since it's
for our church, I'm going to have to build a box myself. Any thoughts?


One XLR mic in and two XLR outputs?

"Han Gartner" wrote in message
. ..
Where can I find an economical buffer circuit to split one mic input into
two outputs, running to both FOH and side stage monitor desks? Since it's
for our church, I'm going to have to build a box myself. Any thoughts?

another option is
if you haven't bought the monitor desk look at something like the Soundcraft
Spirt Monitor
it has a splitter built in
george

Han Gartner wrote:
Where can I find an economical buffer circuit to split one mic input into
two outputs, running to both FOH and side stage monitor desks? Since it's
for our church, I'm going to have to build a box myself. Any thoughts?

The Jensen web site has various articles and schematics of transformer
splitters.

Economical and transformer usually don't go together, though.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."

Check out alt.audio.pro.live-sound, there are a number of threads on
this subject over there.

Also, I think Whirlwind's website has a good amount of tech data on
this. Pretty good reading.

Rafael

"Han Gartner"

Where can I find an economical buffer circuit to split one mic input into
two outputs, running to both FOH and side stage monitor desks?


** You simple do not need one.

One mic can easily drive several desks.




......... Phil

"Phil Allison" wrote in message
...

"Han Gartner"

Where can I find an economical buffer circuit to split one mic input into
two outputs, running to both FOH and side stage monitor desks?


** You simple do not need one.

One mic can easily drive several desks.

Is sharing a common ground between different pieces of equipment a risk for
ground faults and ground potential differences? Isn't that why mic splitters
have an isolated output?

"Bill Quinn" wrote in message
news:Ipszf.2147$pq5.30@trndny02...

"Phil Allison" wrote in message
...

"Han Gartner"

Where can I find an economical buffer circuit to split one mic input
into two outputs, running to both FOH and side stage monitor desks?


** You simple do not need one.

One mic can easily drive several desks.

Is sharing a common ground between different pieces of equipment a risk
for ground faults and ground potential differences? Isn't that why mic
splitters have an isolated output?

this is where theroy and real world application collide
of couse they "could"
but with my passive split and thousand of shows under my belt I can count on
one hand where I used my ground lifts
and then that was never on a "mic" but rather a line signal sent through a
direct box

as well as in a installation it is pretty simple to have all the audio on
one circut

I also do installations for all sorts of public places

I have never need to resort to buffered splits
I am not saying they have no use
what I am saying is they have not been needed
quality cable and connections would be all thats needed
George

"Bill Quinn" wrote in message
news:Ipszf.2147$pq5.30@trndny02...

"Phil Allison" wrote in message
...

"Han Gartner"

Where can I find an economical buffer circuit to split one mic input
into two outputs, running to both FOH and side stage monitor desks?

** You simple do not need one.

One mic can easily drive several desks.

Is sharing a common ground between different pieces of equipment a risk
for ground faults and ground potential differences? Isn't that why mic
splitters have an isolated output?

Yes.

Doing less is risky, but for an installed sound situation like a church,
that may be operating under budget constraints, one may be able to get away
with doing less.

"Arny Krueger" writes:


"Bill Quinn" wrote in message
news:Ipszf.2147$pq5.30@trndny02...

"Phil Allison" wrote in message
...

"Han Gartner"

Where can I find an economical buffer circuit to split one mic input
into two outputs, running to both FOH and side stage monitor desks?

** You simple do not need one.

One mic can easily drive several desks.

Is sharing a common ground between different pieces of equipment a risk
for ground faults and ground potential differences? Isn't that why mic
splitters have an isolated output?

Yes.

Doing less is risky, but for an installed sound situation like a church,
that may be operating under budget constraints, one may be able to get away
with doing less.

Wasn't there a thread about this a while back? If you're running hard-wire
"Y" splits, what's effect of phantom power on one desk to the other? (I
can't quite remember the final take, but it seems that (a) you wouldn't
want phantom supplied from both desks, and (b) the non-phantom desk input
section needed to be okay with +48 on pins 2 and 3.)

Refeshers appreciated.

Frank Stearns
Mobile Audio


--

Wasn't there a thread about this a while back? If you're running hard-wire
"Y" splits, what's effect of phantom power on one desk to the other? (I
can't quite remember the final take, but it seems that (a) you wouldn't
want phantom supplied from both desks, and (b) the non-phantom desk input
section needed to be okay with +48 on pins 2 and 3.)

Refeshers appreciated.

Frank Stearns
Mobile Audio


run only one phantom source
I perfer to run phantom off the monitor desk but it really doesn't matter as
long as it is just one
george

"Frank Stearns" wrote in message
...
"Arny Krueger" writes:


"Bill Quinn" wrote in message
news:Ipszf.2147$pq5.30@trndny02...

"Phil Allison" wrote in message
...

"Han Gartner"

Where can I find an economical buffer circuit to split one mic input
into two outputs, running to both FOH and side stage monitor desks?

** You simple do not need one.

One mic can easily drive several desks.

Is sharing a common ground between different pieces of equipment a risk
for ground faults and ground potential differences? Isn't that why mic
splitters have an isolated output?

Yes.

Doing less is risky, but for an installed sound situation like a church,
that may be operating under budget constraints, one may be able to get
away
with doing less.

Wasn't there a thread about this a while back?

Yes, many times.

If you're running hard-wire
"Y" splits, what's effect of phantom power on one desk to the other?

For openers, expect a doubling of the phantom current that would be
avaialable if both desks are providing similar phantom power.

(I can't quite remember the final take, but it seems that (a) you wouldn't
want phantom supplied from both desks,

I wouldn't expect it to be fatal if the phantom supplies in both desks
conformed to the same voltage standards.

But, this is not a slam dunk.

and (b) the non-phantom desk input section needed to be okay with +48 on
pins 2 and 3.)

Yes, a desk or other mic preamp that provided only 12 or 24 volt phantom
power might be a bit overstressed by the doubling of operational voltages if
the other desk suppled 48 volts of phantom power.

"Bill Quinn"
"Phil Allison"
"Han Gartner"

Where can I find an economical buffer circuit to split one mic input
into two outputs, running to both FOH and side stage monitor desks?


** You simply do not need one.

One mic can easily drive several desks.

Is sharing a common ground between different pieces of equipment a risk
for ground faults and ground potential differences? Isn't that why mic
splitters have an isolated output?


** The mic ground ( pin 1) needs connecting to only one mixer.

Pins 2 and 3 are linked.



........... Phil

"Phil Allison"



** The mic ground ( pin 1) needs connecting to only one mixer.

Pin 2s and 3s are linked to eachother.




.......... Phil