Nucleus - Using Six-Input Mixer as up to x24 Gain Stage

Post any handy Voltage tips or tricks you've come across here.
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utdgrant
Posts: 127
Joined: Wed Apr 07, 2021 8:58 am

Nucleus - Using Six-Input Mixer as up to x24 Gain Stage

Post by utdgrant »

You can use a Six-Input Mixer (from Nucleus) to give DC and AC signals a boost.

Each channel input gives you up to +6.0dB boost (x2 gain), and the master output gives you up to a further +6.0dB boost (x4 gain in total).

You can also feed the same source signal to multiple inputs to get further gain. By feeding the same source to all six inputs and boosting input gain to +6dB, you get a total of x12 gain. Turning up the Master output to +6dB increases total gain to x24.

The multiplied voltages shown in the image are a little below the expected values, if you treat +6.0dB as x2.0.
However, x2.0 voltage gain is actually +6.0206 dB. +6.0dB gives a voltage gain of around x1.995.
MixerAsGain.png
MixerAsGain.png (1.24 MiB) Viewed 90 times
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ColinP
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Joined: Mon Aug 03, 2020 7:46 pm

Re: Nucleus - Using Six-Input Mixer as up to x24 Gain Stage

Post by ColinP »

There's an even easier way...
cableTrick.png
cableTrick.png (124.05 KiB) Viewed 87 times
The example above looks impossible but the yellow "cable" is in fact two cables.

So you can do integer multiplication of a signal by patching multiple cables between the same source and destination.

The problem is that you can't tell there are multiple cables. CA ought to make a simple modification so that each cable droops by a slightly different amount so that one can see what's happening.

As the implementation stands I'd classify it as almost a bug but it's a handy tool sometimes providing you can remember that some cables are only visible when you click on the socket to reveal the multiple.
Adroit Synthesis
ColinP
Posts: 420
Joined: Mon Aug 03, 2020 7:46 pm

Re: Nucleus - Using Six-Input Mixer as up to x24 Gain Stage

Post by ColinP »

I should add that so long as you have cable shadows enabled you can actually tell there are multiple cables by the shadow being darker but it's such a subtle effect that most people wouldn't notice it.
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Steve W
Posts: 326
Joined: Thu Jul 16, 2020 5:55 pm

Re: Nucleus - Using Six-Input Mixer as up to x24 Gain Stage

Post by Steve W »

temporarily removed until I have time to create more images to go along with the "Try . . ." examples.
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Double Connection.png
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