Club Gouda FM Stereo PAK
This page was last modified 14:13, 3 December 2022 by Mars2000you. Based on work by Gdx.


This FM Stereo PAK is a clone of the Panasoft FM-PAC, but without the SRAM function, manufactured by the club Gouda in the Netherlands.

This cartridge contains the MSX-MUSIC chip with

  • its specific BIOS
  • extended BASIC instructions - see MSX-MUSIC BASIC
  • a 3.5mm stereo audio out connector. One channel contains the FM drums eventually mixed with the PSG sound, the other the FM melody channels.

The cartridge also has a built-in software, which can be started by running CALL FMPAK or _FMPAK from BASIC. Here you can listen to various demo sounds. Contrary to the original Panasoft firmware, which can be runned on MSX1, the Checkmark firmware requires a MSX2 or higher computer.

The FM Stereo PAK was also produced by several other people, sometime with more or less modifications like the PCB or/and sound output quality.


Club Gouda FM Stereo Pak packaging
Club Gouda FM Stereo Pak cartridge
Club Gouda FM Stereo Pak PCB
Club Gouda FM Stereo Pak PCB bottom


  • YM2413 FM chip
  • 16kB MSX-MUSIC Basic
  • Stereo audio out connector
  • Pseudo-stereo sound output
  • Built-in firmware

See MSX-MUSIC page for more specifications.