Synthesizer Modules, Making Music, Recording and Much More

Hexinverter – The Postman Envelope Generator


What better to deliver envelopes quickly than The Postman Envelope Generator by Hexinverter Electronique.  The Postman provides 4 envelope generators and more.

The Postman generates Attack / Sustain / Release envelopes so it is ideal for percussive sounds.  Each envelope is tailored through two controls; Attack and Release.

There is 1 Gate Output per EG plus channels 1 and 3 add additional inverted outputs.  The Postman EG also has mixers for channels 1 & 2 and 3 & 4.  This allows you to create sophisticated envelopes limited only by your imagination.  The mixer even allows you to invert channels 1 and / or 3 in the mix.

Envelope status is displayed through 4 LEDs.

To top it all off this EG is FAST!  It’s great for percussion, FX, sequences… just name it!

The Postman EG comes in two versions;

1U width with 0.748″ (19mm) knobs controlling 8 potentiometers (4 x Attack / Release)

2U width with 1″ (25.4mm) knobs controlling 10 potentiometers (4 x Attack / Release + 2 mixers)

Please note that the 1U version does not include the mixer or inverted channel outputs.

The module operates at +/- 15V and comes with a style power connector.

Postman 1U
1U Version of The Postman EG

The Postman EG Vendor Product Page


2U Version

  • Level 1: $300
  • Level 2: $290
  • Level 3: $280

1U Version

  • Level 1: $270
  • Level 2: $260
  • Level 3: $250

Please Note:  Hexinverter has discontinued DIY PCBs like the one used in this module.  Availability of this module is subject to that of the PCBs.  At some point this module will become unavailable.

All Prices are shown in CANADIAN DOLLARS
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NOTE: Price levels are based upon the total number of modules purchased.  This includes modules purchased in the past
1   Module   = Level 1 Pricing
2   Modules = Level 2 Pricing
3+ Modules = Level 3 Pricing
– Shipping charges are extra

– Residents of Canada will be charged applicable taxes on sales
– Prices subject to change without notice
– Limited 1 Year Warranty Applies

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