After 12 months of continuous improvements to our CleanAmp — pushing the Game Boy Advance SP audio to its absolute limit — the one remaining complaint was the persistent background noise the GBA SP is notorious for producing.

This kit contains the exact specification capacitors needed to filter that noise at the source. The GBA SP suffers from inadequate filtering on its power circuit, meaning interference generated by the CPU, SRAM and power regulator passes directly into the audio chain. These capacitors intercept and remove that noise before it ever reaches the audio stage, leaving you with clean, hiss-free sound.

Very easy to install — basic soldering skills are all that is required. A full guide can be found on the RetroSix Wiki or YouTube.