mxm-folded-spring manual
Three controls: wet level, tank size, and feedback. The reverb is the same DSP used inside mxm-mono-00, with two extra tanks and a feedback loop.

Controls
Level — 0 … 100%, Init 35%
Sets the wet return. The dry signal stays unchanged.
Zero lets the tank drain and then switches the DSP off. When you turn it back up, an old tail cannot suddenly return.
Tank — Short, Medium, or Long, Init Medium
Chooses the spring model.
- Short: two bright springs with a quick decay.
- Medium: three springs at 41.6, 50.4, and 60.0 ms, with a 3.5-second decay. This is the hardware-inspired model.
- Long: three darker springs that ring for almost six seconds.
Short and Long are MXM variations, not measurements of other hardware.
When you change tanks, the wet sound fades out, the model swaps, and the tail fades back in. The dry signal keeps playing.
Feedback — 0 … 100%, Init 0%
Feeds the tank output back into its input. This is an MXM addition.
Most of the range makes the tail longer and darker. From about 90%, the tank can sing without any new input. All three models reach that point at roughly the same knob position.
The display
The lines show the springs on one shared time scale, so longer lines mean longer travel. Their brightness follows the wet signal.