Difference between manikk Otto models
NOTE! Make sure to order the correct module for your purpose.
manikk Otto Passive Mono
The 8 jacks are mono with break/normalizing function for each jack.
The Otto Passive Mono also exists as a DIY KIT that you mount and solder yourself.
manikk Otto Passive Stereo
Same as Otto Passive Mono but with 8 stereo jacks instead.
No normalizing functions.
Access to tip and ring for each of the 8 jacks via a pinstrip on the backside.
Great for MIDI-TRS applications which requires min stereo jacks on a front panel.
manikk ADSR Expander
This module is based on the Otto Passive Mono, but has additionally a 8 bit shift register onboard. It has also a dedicated front panel with descriptive names for each jack instead on numbers 1-8.
The ADSR Expander is used as an expander to the manikk ADSR module. This module has digital outputs for all 8 jacks. The outputs are controlled (set or reset) by the master ADSR module. On the backside it has the same pins as the Otto Passive, but in addition to that it also has some pins for SPI-communication with the master module.
See here how to connect the ADSR Expander to your master module.
manikk Otto Passive Multiple 4+4
Passive multiple with two hardsoldered groups of 4 jacks. No pinstrip on the backside. More information here.
Some 2HP manikk modules with add-ons on the back
Some of the manikk 2HP modules are based on the Otto as a front with 8 jacks. The added functionality is implemented as an add-on PCB board that is connected to the pinstrip on the back of the Otto.
Some of them have the Otto front with numbers 1-8, and some have dedicated frontpanels with descriptive texts for each jack function.
They are sold as complete modules with front panel, jacks and add-on board.
For example, see these modules: