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Behringer 911 Envelope Generator

Eurorack Module

  • Analogue envelope generator
  • Controls for attack, decay, release time and sustain level
  • Segment times adjustable from 2 ms - 10 s
  • S-trigger input
  • Width: 8 HP

Further Information

Width 8 TE / HP

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Our most popular Envelope Modules
17 Customer Ratings
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Snappy envelopes, but watch your S-trigs
Earl Langoustine, 27.02.2021
These are great, snappy envelopes, as you would expect from the Moog-derived design. This will probably be the only module you'll ever own that uses S-trig, so this one aspect will probably be unfamiliar, so here's how you know if the S-trigs you're sending actually work correctly.

- If the S-trigger is correct, the envelope will fully articulate through all A-D-S-R stages.

- If the S-trig is wrong, the envelope might not work at all, or might seem to work "opposite" (firing when you let go of a key). If the voltages are wrong, then only the Attack and Release stages will work, but you will not get a decay stage, and the sustain knob will appear not to do anything.

The Arturia Keystep can be configured into S-trig mode, but this device's S-trigs do not open the envelope correctly. Someone else online checked the voltage, and discovered that they do actually not short to zero volts. As a result, the 911 Envelope will not work correctly with Keystep S-trigs.

The Korg SQ-1 sequencer can be put into S-trig mode, and works correctly.

We haven't checked the Behringer 961 Interface, which converts V-trig to S-trig, but presumably it works too. But what if you don't want to invest 21 HP in this huge utility module? (Apparently, it is meant to pair with the 960 Sequential Controller.)

The cheapest and easiest solution is to solder a V-trig to S-trig cable yourself. I know, soldering might be frustrating, but this is quite easy to build. You just need a spare patch cable, a 2N3904 transistor, and a 10K resistor. There are videos online which explain how to build this cable. The electronic components cost less than a euro. By comparison, Doepfer makes a conversion cable, but it's 20 euro and is also big-to-small, meaning you would also need an adapter to work with this module in Eurorack.
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Great EG if you want/need one with S Trig
Andy my first synth was a WASP, 19.02.2021
I love these 911 EGs. Great response, fast and long.

Just remeber yiu need an S Trigger. And not all devices that offer S Triggers are good. I’ve found that the Arturia KeyStep S Trig will not work with the 911 my “work around” was to make an S Trig to V Trig circuit (pretty easy) and use the V Trig from the Keystep.

It is not uncommon for multiple 911 to cause issues so perhaps using the Behringer converter module is a good idea.
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Not as accurate
Squirrel70, 06.10.2020
A good envelope generator but the envelope timings don't match the front panel graphics. Behringer may need to change out the potentiometers they use in this module or remanufacture the entire module, however i don't know how this 911 matches the original moog 911. The Doepfer A-140's are much better.
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Einwandfreie Verarbeitung und Qualität
Recmac, 10.05.2020
Habe gleich nach Erscheinen der Behringer System 55 Module ein paar davon bei Thomann bestellt und muss sagen dass die Verarbeitungsqualität einwandfrei ist. Die Potis fühlen sich sehr hochwertig an, macht Spass an den Reglern zu drehen. Zum Sound lässt sich wenig sagen da das Modul hier nur Hüllkurven erzeugt. Beachtet dass der Gate Eingang nur S-Trigger verarbeitet, das passenden Interface Modul ist also zwingend notwendig wenn man mit normalen V Triggern das Modul ansteuern möchte.
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£46
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Available immediately
Available immediately

This item is in stock and can be dispatched immediately.

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