Hi !

Just jumping in to attract your attention to the 1U formats that exist: there are 2 competing formats, Pulp Logic tiles and Intellijel. The Palette case is made for the Intellijel format, it is not compatible with Pulp Logic sized module.
In the build above, I'm pretty sure the Atten-B are not compatible with a Palette case, and I have my doubts about the Unity Mixer as well. An Intellijel Quadratt (or Duatt) provides mixing and attenuation in the Intellijel format, and I also know of Transient Modules who are also making Intellijel compatible 1U modules, including a mixer.

Hope this help :)

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