My understanding of mixers like the A 138 is that they are designed to NOT produce the effect that I want - they are designed to minimise the artefacts of bringing the signals together. I'm specifically looking to create interaction effects. As I said in the initial email about using a mult "it would be non linear and give more rich harmonics - or so I understand. ( Page 175 Electronic Music: Systems, Techniques and Controls, Allen Strange)." It is what Strange suggests - using a mult - but I'm wondering how to make it "safe" for the oscillators. David www.movingisliving.co.uk Sent from my iPhone > On 1 Dec 2014, at 02:08, achtung_999 heinrich.himmelwasser@gmail.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote: > > Then again, a normal mixer that does not amplify (for instance the doepfer a138a/b) is also a unity gain mixer if you turn all the channels you are using to the maximum setting. > > >> On Sun, Nov 30, 2014 at 10:22 PM, james.husted@mac.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote: >> >> The module you want is a unity gain mixer/summer - it is like a mixer without the level controls. Intellijel designs makes one called the Unity Mixer for US$75 (on Analogue Haven - http://www.analoguehaven.com/intellijeldesigns/unitymixer/ ). It is a dual 3-in 1 out summer that is normalized together so can make a 6-in one out summer. It is also only 2HP wide. Very useful if you have VCOs with only one V/Oct Cv in and you want to drive it with a sequencer and transpose from a keyboard for instance. >> -James >> >> James Husted, Designer, Synthwerks LLC • www.synthwerks.com • james@synthwerks.com • info@synthwerks.com >> >> >>> On Nov 30, 2014, at 12:20 PM, florian anwander fanwander@mnet-online.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote: >>> >>> Hello David >>> >>>> So would buffered mults work in the same way but with no risk? >>> No buffered mults wouldn't work at all. They are the opposite of a mixer >>> (think them as 7 aux sends of a mixer, with send volume turned fully up). >>> >>> A mixer is a mixer. Thats it. >>> >>> A multiple in your planned setup is simply a shortcut between two >>> outputs and one or several inputs. Using them may work some way, as long >>> as you are feeding them with the outputs of equal modules. Feeding them >>> with the outputs of different modules may cause troubles; but as long as >>> they are built like Doepfer ones (a serial resistor in the output path), >>> you won't kill them. The troubles may be in the dimension of "one signal >>> suppresses the other signal in a significant way" or "signal A causes a >>> frequency damping of signal B". This may be fun or may be an unwanted >>> effect. >>> >>> Florian >>> >>> >>> ------------------------------------ >>> Posted by: florian anwander <fanwander@mnet-online.de> >>> ------------------------------------ >>> >>> >>> ------------------------------------ >>> >>> Yahoo Groups Links >>> >>> >>> >
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Re: [Doepfer_a100] Passive Mults
2014-12-02 by David Kellett
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