M-VAVE FM-1 firmware

GHOULBOX

Felucca fork for dungeon synth and dark ambient. by Jason Persinger

GHOULBOX preview from its author
Preview by jasonpersinger

About

GHOULBOX tunes Felucca for dungeon synth and dark ambient: a huge hall reverb, a worn-tape effect, a hurdy-gurdy engine with drones and a library of dark pads, choirs and folk instruments.

SynthAmbient and generative

Compatibility

  • M-VAVE FM-1Declared by the author · latest ghoulbox-v2.0 · needs stock V15

Member “works on my unit” reports per release come with the community layer.

Latest release upstream

GHOULBOX 2.4 · ghoulbox-v2.4 · 24 Oct 2026 · 10 releases listed

  • ghoulbox-2.4.fwsc · 596 KBSHA-256 92630ae278d4a0b4233ff2512b62ad9b5dbe976a4c9083046222d9293a8df749
  • GHOULBOX-User-Guide-2.4-print.pdf · 1066 KBSHA-256 254fd2e84d1eedbdce141044b2c013559fd8a0cf376943ade5a9fc2cac1fedb6
  • GHOULBOX-User-Guide-2.4.pdf · 1067 KBSHA-256 42220c29a67469875e32653b349b1217e89682633e87a739fb132c6cdb924a56

Synced from the author’s repository on 29 Oct 2026. Files stay with the author; Maru does not host them.

Install and safety

Untested. No compatibility reports yet. Maru has not tested it on hardware.

Install with the author’s installer

Maru offers its own install only for open-source releases with a complete install record, after its installer has completed a full install and restore on a physical M-VAVE FM-1.

  • Put the unit on stock V15 first, and keep your own copy of the stock file from M-VAVE’s downloads so you can go back.
  • Back up your presets with the current firmware’s own export before installing.
  • Rescue: none documented for this firmware.
  • If something goes wrong, follow the recovery ladder.
  • The author's installer saves a full backup first.