Behringer CM1A

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Eurorack module

MIDI-to-CV interface
16Bit converter
Monophonic and duophonic operation possible
2 CV outputs
2 gate outputs
Switchable between S-trigger and V-trigger
USB-B port
MIDI In/Thru
Consumption: 70 mA (+12 V) / 10 mA (-12 V)
Width: 6 HP
Depth: 52 mm

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Available since January 2022

Item number 523241

Sales Unit 1 piece(s)

Width 6 TE / HP

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14 Customer ratings

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4.5 / 5

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11 Reviews

Nice MIDI-CV module. Make sure to calibrate it!

Radu7 25.02.2022

This module made a nice addition to my Behringer System 100 rack setup. Everything worked as designed save a few issues:

1. The Behringer Synthtribe 2.5.7 app constantly crashed and was unusable for configuring the CM1A. Going back to Synthtribe 2.5.5 worked perfectly. I reported the issue to Behringer so perhaps it will be rectified in the next release.

2. The scaling on the CM1A was terrible out of the box. It was unable to play two octaves in tune. This can be corrected using the calibration portion of the Synthtribe 2.5.5 app, but there are no instructions for this and Behringer support appear to be unaware this feature even exists. There is an incomplete diagram on the calibration page for the hookup to your DMM (you need a quality DMM with at least 3 decimal places of accuracy) and the process does not work well if you do not place a load (100KOhm resistor, for example) that approximates the impedance of the VCO you are calibrating the CM1A for.
After calibrating using Synthtribe with a suitable resistor across the DMM test leads it scales across 4 octaves quite well.

3. Does not play well with passive mults at all. This is common with any CV used for pitch control, but the CM1A is very sensitive to this when compared to other MIDI-CV modules I've tested. You need a buffered mult if you need to use the CV outs with more than one input each if you expect accurate scaling when controlling pitch.

None of the 'issues' I mentioned above are out of the ordinary for a MIDI-CV module in general, but could put off someone new to modular synths or cause them to return the module thinking it was faulty when it simply needed calibration, etc...

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TOP QUALITY

Sammysammy1 09.03.2022

Very easy to use and the quality is great

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Overall a good midi input for my eurorack setup.

TV from Belgium 21.02.2023

It does what they promise. The quality is very good and it simply works.

The only thing I find a shame is that you cannot set the two sets of outputs to two different midi channels. Which would have made this the perfect midi module for me. But this was clear before I bought it, so no disappointment there.

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Compact and reliable

elpero 11.05.2022

USB connection is a nice feature, you can drive the module from PC from VCV Rack for example.

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Behringer CM1A

Eurorack module

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14 Customer ratings

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11 Reviews

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Behringer CM1A

Eurorack module

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14 Customer ratings

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11 Reviews

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