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Audio Mods

Browse Audio Mods tutorials, practical guides, and hardware references in the GlitchMod console wiki.

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13 tutorials
Genesis / Mega DriveGenesis:Audio Circuit ModEarly revisions of the model 2 Genesis/Mega Drive, specifically the VA0, VA1 and VA1.8 boards, are known for their lower quality audio…Updated Oct 9, 2026Genesis / Mega DriveGenesis:Preamp Fix (Model 1)Early model 1 Japanese Mega Drives and the earliest US Genesis consoles have slightly overdriven audio from the headphone jack, slight…Updated Oct 9, 2026Master SystemMaster System:Audio Line Out ModThis page shows how to get audio directly from the Sega Master System's A/V port. This would most commonly be used for routing audio t…Updated Oct 9, 2026Master SystemMaster System:M.K Workshop Mark III FM ModAn unpopulated M.K Workshop FM board. In 2021, a Japanese modder known as M.K Workshop designed an internal FM audio board for the Seg…Updated Oct 9, 2026Master SystemMaster System:Mark III SMSFM InstallationAlthough the Sega Mark III had an official FM add-on (the FM Sound Unit), it is fairly difficult to find and also does not pass throug…Updated Oct 9, 2026Master SystemMaster System:Model 1 SMS SMSFM InstallationThe SMSFM board was primarily designed for installation in an original model Master System, and is therefore the easiest console to in…Updated Oct 9, 2026Master SystemMaster System:SMS II SMSFM InstallationInstalling an SMSFM board in a Master System II can be more challenging and tedious than a model 1 since it does not have an expansion…Updated Oct 9, 2026Master SystemMaster System:SMSFMThe Sega Master System FM Expansion Board, or SMSFM for short, is a modification board designed by Tim Worthington which adds FM audio…Updated Oct 9, 2026NESNES:"Stereo" Audio ModWhile the console as designed offers mono sound, it is possible to bypass the mixer and get true 2-channel sound (although not properl…Updated Oct 9, 2026NESNES:Expansion (EXP) Audio ModThe Famicom 60-pin cartridge connector has two pins for audio. Pin 45 supplies audio from the console to the cartridge, and pin 46 pin…Updated Oct 9, 2026SaturnSaturn:Digital Audio (SPDIF) ModExample completed install. There are two boards that will allow you to obtain digital audio: Will's Sega Saturn SPDIF Kit and the Pep …Updated Oct 9, 2026Super NintendoSNES:Audio Balance FixDue to an odd oversight, older SNES and Super Famicom consoles have a slight audio imbalance issue which can be easily corrected. This…Updated Oct 9, 2026Super NintendoSNES:Digital Audio (SPDIF) ModA digital audio mod is possible for the SNES using a SPDIF digital audio board, such as [this one by FirebrandX or this one by Lectron…Updated Oct 9, 2026