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m2 VCO3Custom Designed GearVCO |
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Introduction The m2VCO3 is an unique device which is composed around 3 high quality VCO integrated circuits. The configuration is designed in such way that each VCO has exclusive wave form shapers additives to be combined with the standard wave forms. Each VCO has a wave form mixer to be able to generate complex wave forms just by mixing them. Each VCO mix then can be mixed to a final mix. Wave forms and mix stages also do have separated outputs. Each VCO has 4 ways to SYNC (Soft - Positive - Negative - Hard) to create many timbre variations. The VCO's do have excellent V/OCT tracking over 10 octaves. Separated LOG en LIN VC inputs, Pulse Width and Pulse Width modulation controls.
The m2VCO3 is built into a wooden case of 34 Cm wide ("13.4), 17,5 Cm high ("6.9) and 50 Cm deep ("19.7) but can be transformed into a 19 Inch case. The m2VCO3 served many projects and now will be completely renovated to serve a new owner. The front panel will be airbrushed in full colour to match a modern exclusive look (see to view how this can look like or have a glance at the illustration below. The m2VCO3 also can be newly build, based on the case and IN/OUT types you prefer. |
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SpecificationsEach VCO features:
 
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m2 U11Custom Designed GearVCA / VCF / ADSR |
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Introduction The m2u11 is a compilation of basic analogy synthesizer modules which are required to create a 'voice'. When you, for example, apply a VCO to it and a keyboard Gate/Trigger, you have all the needs to create a voice for keyboard playing with many variations and modulations possible. The m2u11 may also serve for other purposes than 'standard' keyboard playing.
The m2u11 is built into a wooden case of 34 Cm wide ("13.4), 17,5 Cm high ("6.9) and 50 Cm deep ("19.7) but can be transformed into a 19 Inch case. The m2u11 served many projects and now will be completely renovated to serve a new owner. The front panel will be airbrushed in full colour to match a modern exclusive look (see to view how this can look like or have a glance at the illustration below. The m2u11 also can be newly build, based on the case and IN/OUT types you prefer. |
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Dual VCAVCA 1 features: VCA 1 is a linear VCA, especially for modulation purposes like Tremolo. It also features a multiplier control to have it functioning as an ANTI-VCA and 2 quadrant multiplier (half ring modulator). The response to the Control signal is at audio speed and this features the VCA also to function as a half-ring modulator. The combination of the multiplier control and the audio-speed control voltage response turns this VCA into a great wave shaper when using 2 tracking VCO modules. The VCA as differential inputs to also create an add/subtract function. Also useful is the fact that the VCA can be used for both AC (audio) and DC (control) signals.
VCA 2 features:
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VCF (VC-SVF)VCF features: The VCF is a 'State variable' type which features Low Pass (LP), Band Pass (BP) and High Pass (HP) nodes. These can be mixed together with the input signal (N = By Pass) and all four signals can be switched to invert, off, non-invert to create other filter characteristics such as a Notch filter. There are plenty of control inputs and routing switches. Also the resonance (Q) can be controlled by an external voltage.
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Dual Envelope GeneratorADSR features: Both The ADSR (Attack, Decay, Sustain, Release) Envelope generator modules have besides the standard specifications some extra's. Normally, ADSR 1 serves to control the VCF and ADSR 2 the LOG VCA (2). They can be controlled by a Gate and/or Trigger signal and also have a Reset input to interact with a NPD signal (New key dePress Detection pulse).
ADSR 1 extra features:
ADSR 2 extra features:
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m2 U17Custom Designed GearMM VCF / ENV / RND |
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Introduction The m2U17 is a unique device which is composed around a Multi Mode VCF. This VCF is designed around a high quality analogy VCF chip from CURTIS (CEM 3320). The unique m2 Design has led to a VCF which can be switched by a Control Voltage to 1 out the 5 possible filter modi (APF, SVF, LPF, BPF, HPF). Each filter modus also can be set at its own gain. Both features also can be digitally controlled via a REMOTE connection. The Voltage Controlled Filter Mode Switch gives you the unique opportunity to change from filter mode by any applied voltage. For example by a SEQUENCER line or just by a LFO.
Besides the MM VCF the m2U17 also counts other modules. Quick overview:
Because the m2U17 is modular, you can make many patches to explore your creativity and originality. Also, if you do not make any external patches, you still can change the setup by using the routing switches and the Voltage Control parameter settings. The m2 U17 not only can be used in an analogy synthesizer setup, but also used in combination with any instrument or voice. The m2U17 also would be a great filter effect box for guitarist to add dynamic filter changes to their sound which are based on their way of playing. Combine the U17 with a Distortioner (for example) to create an enormous amount of possible effects which can be tuned to your very own personal taste. The m2U17 is built into a wooden case of 34 Cm wide ("13.4), 17,5 Cm high ("6.9) and 50 Cm deep ("19.7) but can be transformed into a 19 Inch case. The m2U17 served many projects and now will be completely renovated to serve a new owner. The front panel will be airbrushed in full colour to match a modern exclusive look (see to view how this can look like or have a glance at the illustration below. The m2U17 also can be newly build, based on the case and IN/OUT types you prefer. |
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SpecificationsThe following list of specifications and features is quit long. Well, you can't have a device with many possibilities and at the same time a short list of specifications. So, take your time. MM VCF (Multi Mode Voltage Controlled Filter)
Noise & Random Generator
Sinusoïde Pseudo Random Generator (PRV)
Envelope Follower & Generators and Trigger/Gate extractors
3rd Trigger/Gate Extractor (TGE3)
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MM VCF (Multi Mode Voltage Controlled FilterThe MM VCF is a unique filter variant which is composed around a multipurpose VCF chip from CURTIS CEM 3320). With this high quality integrated voltage controlled filter chip all common synthesizer filter configurations can be build up. When you buy a VCF module such as a LPF, BPF or HPF, they might be all designed with this CEM chip. It is quite expensive to buy all filter types separately. Why not having a Multi-Mode version to choose with which filter type you want to use it and then set it for this? This is exactly what the MM VCF can do. And even more. You not only can switch between 5 different filter types (modi) but also control this switching with a Control Voltage and thus change the filter type on the fly - controlled by any external voltage. To achieve this requires a lot of extra circuits to electronically switch from one to another filter mode, but this shortly is worth the deal. Besides this unique feature, the MM VCF has more. The point to point explanation below will guide you through this.
Multi Mode As you are aware by now, the MM VCF can switch to 5 different filter modi (types). To recall, these are:
With exception of the APF filter, these filter types (modi) are common to synthesizers, but they hardly appear all at the same time in a single analogy design. Filter Mode Control & ECV To change the filter mode manually, you do not turn a switch. Instead you simple turn a control pot. This goes much more smooth. A 5 LED indication bar shows you which filter mode is present. Behind this smooth filter change control lays a unique feature: Voltage Controlled Filter Mode Change! This feature takes quit an extra electronics board but this is worth the deal. Now, you also can apply an external control voltage (ECV) to have the filter mode changed.
View the illustration below to catch the idea graphically.
..... here mention the actual input and control. led indication Voltage Controlled Frequency (F / FM)
Manual
ECV F1
ECV F2
ECV F3
Phase
Routing SW
Voltage Controlled Resonance (Q / QM) Manual
ECV Q1
ECV Q2
ECV Q3
Phase
Routing SW
Q and filter mode (APF has reversed Q function)
Node Mixer & Phase
Nodes (What are nodes)
Mix pot
Mix phase (add/subtract)
Mix pot sw
Remote control
Led indication ]
Output gain & filter mode Each filter mode can be programmed for a certain output gain Why?
On/Off sw
Remote control
Led indication Remote control sockets
Remote gain & mixer on/off
Remote Filter mode
Why?
How?
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Noise & RandomWhite Noise (WN) The Noise generator has the function to produce a so called White Noise (WN) that is as white (flat) as possible. The Noise generator of the m2U17 delivers at its WN output such a noise. It is in contrast to many regular musical instruments analogy generated noise. The White Noise quality of the m2U17 is better than most classical and modern digital noise generators due to the extra selection criteria of the noise-transistor. White Noise Filtered (WNF) The WN signal is connected to a heavy LOW and HIGH filter control to prepare the noise signal for typical audio use in combination with a VCF. By amplifying or weakening the low and/or the high spectrum, you more precisely can determine the final spectral effects when using this noise as a base for all kind of imitation which are based on noise (rain and thunder, wind, sea waves etc.). Coloured Noise (CN) This Noise signal is a heavenly filtered version of the WN signal. It sounds like deep heavy rain and also can be seen as a fast random voltage. It can serve audio effect purposes as described above but also serves generating a slow random voltage. Synthi-drum You can use both WN, WNF and CN noise signals as a good base to create a Synthi-drum by combining the ENV follower, generator and the VCF. When you connect for example a microphone to the ENV follower, you can use the MIC as a Synthi-drum pick up element which not only responds good to beating it but also when blowing etc. Random Voltage (RV or RND) The CN noise signal is the base to generate a so called slow random voltage. This is done by applying the CN output to the SL module (SLEW LIMITER) input and delay the signal with the DELAY control. SLEW LIMITER (SL) The SL module with its Delay control is basically a Low Pass Filter. But, it is not meant to be a filter for audio signals, although possible. Instead it functions as a rigorous delay for control signals. With the Delay control you can set the Attack and Release time. This normally (internal patch) serves to create a variable Random Voltage but because both in and output is patchable, you also can use it for other purposes. |
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Pseudo Random
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TGE3
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ENV follower
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ENV generator
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TGE A&B
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Dual SPCustom Designed Gearplus Signal Rigger |
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IntroductionA Signal Processor (SP) is a 3 channel mixer for both AC and DC based signals. Each channel may be mixed in or out phase (non-inverted or inverted). By using the internal patched reference voltage it also can be used as a DC shifter. Besides the use as an audio mixer and waveform shaper, the SP suits very well to create alternative CV signals. The module also counts a so called Signal Rigger to transfer any signal to another level, shift and/or invert and to extract a Gate/Trigger signal. |
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SP featuresModular setup. The sections are internally linked to create a total function but also each section can be used on its own.
Rigger featuresModular setup. The sections are internally linked to create a total and versatile function but, also each section can be used on its own.
More about the Signal Processor module you read at the Dual VCA & Signal Processor item. |
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Block diagram
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