ZX-MultiSound

Sound card for ZX Spectrum (NemoBus).

Tech specs

• TurboSound FM (2xYM2203)
• General Sound (12MHz, 1024Kb of RAM)
• SAA1099 (use port #FF/#1FF to access SAA chip, write #F7/#FF to #FFFD port to enable/disable SAA)
• SounDrive (ports #0F, #1F, #4F, #5F)
• MIDI (controlled via YM(AY) chip - compatible with ZX Spectrum 128K / ZXUNO)
• Low profile PCB: 170x64mm
• 5V and 12V power required
• 4x 1-bit digital DACs for GS and SounDrive

Changelog & current status

• Rev.A - first release. Please note the errata;
• Rev.A1 - fixed all rev.A issues. This revision hasn't been tested.

Sound card has been tested only with ZX Evolution. You can use it with another computer at your own risk.

Related projects

• Turbo Sound FM - link
• ZXM-SoundCard - link
• ZXM-GeneralSound - link
• NeoGS - link