PLAN B analog blog

I have been contracted to develop a one-off 36 RU output module 
and have created a poll to determine the viability of a small 
production run (go to polls tab).

A faceplate rendering can be found in the photo section.  Once 
selected, you may click on the image for a larger view.

Theory of operation:

The Balanced Stereo Output Processor is a four to six channel 
voltage controlled stereo mixer consisting of four independent 
VCAs, four panners, a stereo headphone preamp, two auxiliary 
inputs, four main inputs, a visual output display and three sets of 
signal outputs (one being balanced) designed especially for, but 
not limited to, use as an final output module for large to 
medium-sized systems. 

Each of four channels afford the following:

Attenuation:

A) Manual Level Pot
B) VC Level w/ +/- processing pot

Panning:

A) Manual Pan (L - R)
B) VC Pan w/ +/- processing

Routing:

A) Cue Out / Main Out / Both  send switch

Outputs:

A) 2 sets of  Stereo outputs (one set located on the back of the 
module)

B) 1 set of balanced 1/4 inch stereo outputs (located at the back 
of the module)

C) Stereo headphone output jack w/attenuation (CUE OUT)

D) Two Six element LED bar displays (amplitude)

Inputs:

A) Four main channel inputs (1 per channel)

B) Two AUX inputs (routed directly to the MAIN OUTS - one each 
to CH. 1 and 2)

If used as an output module, each of the four input channels can 
be independently routed to either the 3 sets of main outputs (1 
set  balanced)  or a dedicated CUE OUT  stereo headphone jack  
- so that sound events may be PREVIEWED before they are sent 
to the main outputs (This is especially helpful in live 
performance).   A center position on the SEND switch allows for 
both MAIN and CUE out monitoring simultaneously.

There are three sets of main stereo outputs -- the faceplate 
mounted AUX OUTS and two sets which accessible on the back 
of the unit - one being tip/ring/sleeve type balanced outputs. 

Along with the audio outs, each main output  channel has a a set 
of AUX inputs, a level attenuate and a six element bar display as 
a visual display of output level.

If a channels level is attenuated (pot fully CCW), the VC Level 
Input will  act as a VCA.  However, if level is not gully attenuated, 
the VC input acts as a velocity controller for variable dynamic 
expression of the level dialed on the pot.

ESTIMATED cost: $375

Availability: Spring 2005

Dear Peter
Just a basic question:
How many mA will the (Eurorack) Balanced Stereo Output Processor draw 
approximately ?
Only +/-12 or also +5 V required ?

Kind regards from Amsterdam
Joost



--- In PLAN_B_analog_blog@yahoogroups.com, "(i think you can figure 
that out)" <peter@b...> wrote:
> 
> I have been contracted to develop a one-off 36 RU output module 
> and have created a poll to determine the viability of a small 
> production run (go to polls tab).
> 
> A faceplate rendering can be found in the photo section.  Once 
> selected, you may click on the image for a larger view.
> 
> Theory of operation:
> 
> The Balanced Stereo Output Processor is a four to six channel 
> voltage controlled stereo mixer consisting of four independent 
> VCAs, four panners, a stereo headphone preamp, two auxiliary 
> inputs, four main inputs, a visual output display and three sets of 
> signal outputs (one being balanced) designed especially for, but 
> not limited to, use as an final output module for large to 
> medium-sized systems. 
> 
> Each of four channels afford the following:
> 
> Attenuation:
> 
> A) Manual Level Pot
> B) VC Level w/ +/- processing pot
> 
> Panning:
> 
> A) Manual Pan (L - R)
> B) VC Pan w/ +/- processing
> 
> Routing:
> 
> A) Cue Out / Main Out / Both  send switch
> 
> Outputs:
> 
> A) 2 sets of  Stereo outputs (one set located on the back of the 
> module)
> 
> B) 1 set of balanced 1/4 inch stereo outputs (located at the back 
> of the module)
> 
> C) Stereo headphone output jack w/attenuation (CUE OUT)
> 
> D) Two Six element LED bar displays (amplitude)
> 
> Inputs:
> 
> A) Four main channel inputs (1 per channel)
> 
> B) Two AUX inputs (routed directly to the MAIN OUTS - one each 
> to CH. 1 and 2)
> 
> If used as an output module, each of the four input channels can 
> be independently routed to either the 3 sets of main outputs (1 
> set  balanced)  or a dedicated CUE OUT  stereo headphone jack  
> - so that sound events may be PREVIEWED before they are sent 
> to the main outputs (This is especially helpful in live 
> performance).   A center position on the SEND switch allows for 
> both MAIN and CUE out monitoring simultaneously.
> 
> There are three sets of main stereo outputs -- the faceplate 
> mounted AUX OUTS and two sets which accessible on the back 
> of the unit - one being tip/ring/sleeve type balanced outputs. 
> 
> Along with the audio outs, each main output  channel has a a set 
> of AUX inputs, a level attenuate and a six element bar display as 
> a visual display of output level.
> 
> If a channels level is attenuated (pot fully CCW), the VC Level 
> Input will  act as a VCA.  However, if level is not gully 
attenuated, 

> the VC input acts as a velocity controller for variable dynamic 
> expression of the level dialed on the pot.
> 
> ESTIMATED cost: $375
> 
> Availability: Spring 2005

I can't say for certain how much current this would draw, it's not 
going to be out of the ordinary by any mans and will only require 
a +/-12 supply.  

If anything ever requires a smaller supply voltage (Milton for 
instance uses +5), I'll handle that by including on-board  
regulators in the module itself.

- P

--- In PLAN_B_analog_blog@yahoogroups.com, "levka0" 
<levka@d...> wrote:
> 
> Dear Peter
> Just a basic question:
> How many mA will the (Eurorack) Balanced Stereo Output 
Processor draw 
> approximately ?
> Only +/-12 or also +5 V required ?
> 
> Kind regards from Amsterdam
> Joost
> 
> 
> 
> --- In PLAN_B_analog_blog@yahoogroups.com, "(i think you 
can figure 
> that out)" <peter@b...> wrote:
> > 
> > I have been contracted to develop a one-off 36 RU output 
module 
> > and have created a poll to determine the viability of a small 
> > production run (go to polls tab).
> > 
> > A faceplate rendering can be found in the photo section.  
Once 
> > selected, you may click on the image for a larger view.
> > 
> > Theory of operation:
> > 
> > The Balanced Stereo Output Processor is a four to six 
channel 
> > voltage controlled stereo mixer consisting of four 
independent 
> > VCAs, four panners, a stereo headphone preamp, two 
auxiliary 
> > inputs, four main inputs, a visual output display and three 
sets of 
> > signal outputs (one being balanced) designed especially for, 
but 
> > not limited to, use as an final output module for large to 
> > medium-sized systems. 
> > 
> > Each of four channels afford the following:
> > 
> > Attenuation:
> > 
> > A) Manual Level Pot
> > B) VC Level w/ +/- processing pot
> > 
> > Panning:
> > 
> > A) Manual Pan (L - R)
> > B) VC Pan w/ +/- processing
> > 
> > Routing:
> > 
> > A) Cue Out / Main Out / Both  send switch
> > 
> > Outputs:
> > 
> > A) 2 sets of  Stereo outputs (one set located on the back of 
the 
> > module)
> > 
> > B) 1 set of balanced 1/4 inch stereo outputs (located at the 
back 
> > of the module)
> > 
> > C) Stereo headphone output jack w/attenuation (CUE OUT)
> > 
> > D) Two Six element LED bar displays (amplitude)
> > 
> > Inputs:
> > 
> > A) Four main channel inputs (1 per channel)
> > 
> > B) Two AUX inputs (routed directly to the MAIN OUTS - one 
each 
> > to CH. 1 and 2)
> > 
> > If used as an output module, each of the four input channels 
can 
> > be independently routed to either the 3 sets of main outputs 
(1 
> > set  balanced)  or a dedicated CUE OUT  stereo headphone 
jack  
> > - so that sound events may be PREVIEWED before they are 
sent 
> > to the main outputs (This is especially helpful in live 
> > performance).   A center position on the SEND switch allows 
for 
> > both MAIN and CUE out monitoring simultaneously.
> > 
> > There are three sets of main stereo outputs -- the faceplate 
> > mounted AUX OUTS and two sets which accessible on the 
back 
> > of the unit - one being tip/ring/sleeve type balanced outputs. 
> > 
> > Along with the audio outs, each main output  channel has a a 
set 
> > of AUX inputs, a level attenuate and a six element bar display 
as 

> > a visual display of output level.
> > 
> > If a channels level is attenuated (pot fully CCW), the VC Level 
> > Input will  act as a VCA.  However, if level is not gully 
> attenuated, 
> > the VC input acts as a velocity controller for variable dynamic 
> > expression of the level dialed on the pot.
> > 
> > ESTIMATED cost: $375
> > 
> > Availability: Spring 2005