This Module is discontinued.
Quad AR envelope
The Postman EG is a DIY quad envelope module with 2 inverted outputs and a mixed output for EG1+2 and EG3+4.
this is the complex version with the panel from papernoise
http://cv.hexinverter.net/?page=projects&id=the-postman-eg-v10
Bach Stradivarius 37 Professional Model
Korg Prophecy
Meris Enzo
Jackson SL1X
Peavey Century
Gallien-Krueger Fusion 1200S 1200-Watt