Skip to main content
Please log in to rate Already rated

Anansi Mid Side Router

Mastering Spider

Jiggery-Pokery Sound

  • • Mid/Side Controller
  • • Splitter/Merger
  • • Simple UI

Video clips

Anansi is an audio routing super-spider designed particularly for use in Reason's Master Insert FX section, featuring a mid/side send/return splitter and a mono mix check facility.

With its clean lines and simple-to-use interface, this is the only mid/side splitter you need in your Master Inserts section.

Product details

User Guide Download Anansi User Guide

The Mid/Side section allows for splitting an incoming stereo single into two mono signals for separate processing and re-merging them. Up to three stereo signals can be run through a one-switch Mono Check function to check mono compatibility. Additionally there are basic three-channel merger and splitter sections.


Mid/Side encoding/decoding

  • Stereo in to mono mid and mono side send out and return to stereo out
  • Balance control for the mid/side output mix
  • Pass-through switch to output original unprocessed mid/side signal

Mono Check

  • Three selectable stereo inputs and one stereo output, switchable from stereo to mono sum for mono compatibility checking


  • Three switchable stereo ins to a single stereo out


  • One stereo in to three switchable stereo outs

Anansi RE includes several example preset Combinators compatible with Reason and Reason Essentials, plus several further examples using a number of additionally available Rack Extensions. To avoid introducing phase issues, as with any parallel processing use the same device chains for both mid and side send/return.



  • Patches are now included within the device for quick access from your Reason browser's Rack Extension section. Includes several new presets
  • Fixed 2dB gain error when not processing
  • M/S lamps now on the output signal, rather than input



Released: 2013-04-11
Version: 1.1.0