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Boss SP1 Spectrum Mods

Boss SP1 Spectrum Mods

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Mod Options:

    MIJ Mods: If your pedal was made in Japan (MIJ,) it likely required a 12v aka ACU power supply to operate at proper efficiency. Some MIJ pedals might still work on 9v, but don't sound as good as they're supposed to.

    1. ACA 2 PSA: Converts the 12v ACA requirement to a standard 9v PSA requirement.