CP format
This Module is currently available.
Four channel voltage controlled output mixer with VC panning and A440 tuner.
M 543 Stereo Output Mixer
The M 543 OUTPUT MIXER is a 4-channel output mixer with voltage controlled volume and panorama per channel.
In addition It has a A-440 tuning aid, two phone outputs and muting switches per input channel.
These merchants probably sell this module. Huh?
Moon Modular 543E CP