The midhorn kit comes in various woods, and some are slightly different thicknesses. This is due to the fact that some wood products are offered in metric dimensions and others are measured by the inch. This caused the cabinet shop some difficulty because they had to create three different production jigs. Most are 5/8" or 19mm.

As for the loudspeaker kits, they include the speaker drivers, the connector panel, hook up wires, "π" logo decal and a printed copy of the plans. For larger speakers that incorporate a compression tweeter and crossover network, kits also include the crossover, tweeter compensation cable assembly, Zobel woofer damper where required, and all cable assemblies are completed and ready to install. Every kit containing a compression driver also includes the horn flare and the bolts to mount the driver to the horn.