Today, if you want a Dune M4P, you cannot buy one. There is no waiting list. There is no reissue. The original French factory is now a parking lot. The Dutch engineer who designed the gain cell reportedly died in 2009, and his notebooks were thrown away by his estate. There is a reason this feature is not accompanied by audio samples. The few owners of the M4P refuse to record direct line-out signals. They believe the unique distortion pattern is "fingerprinted"—that if a high-resolution sample were released, someone with a neural network and enough time could replicate the circuit digitally.
If you ever see one at a garage sale. Buy it. Then run. dune m4p
But every decade or so, a phantom emerges. A piece of equipment that doesn’t just break the mold—it erases the mold entirely. The is that phantom. Today, if you want a Dune M4P, you cannot buy one