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Re: [motm] cascade multiple - 910

2008-04-27 by Richard Brewster

A multiple is nothing but wires connecting patch cords together.  Since 
the outputs of most MOTM modules have 1K series resistors on them, a 
standard also used by Electronotes expressly for this very reason, they 
can in fact be mixed together in a multiple.  The current draw will be a 
little higher, but this does not present a problem.  Voltages combined 
by this means do not sum in the same way that they do in a mixer.  If 
you take the example of two VCO outputs being patched together, each 
presents a 1K load to the other.  This means that each output level is 
50% of normal, which has a useful effect of limiting the overall 
levels.  It also means there is a 50/50 mix of the two signals.  Mix 
three and each would contribute 1/3 of the result.  Of course you have 
no control over the proportion of the mix.  For that you would need to 
use a mixer module with pots to adjust the relative levels of each input.

Richard Brewster
http://www.pugix.com

Mark wrote:
> In general, you can mult outputs, but you can't mult inputs.  To send
> several outputs to the same input you need a mixer.  For example you
> can send the output of one 190 to the inputs of several filters, but
> you can't the output of several filters to the input of one 190
> (without a mixer).
>

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