Mr. Black Mini OD-503

Purpose built to give you more of your instrument and amp, the OD-503 enhances the drive and natural harmonic content of your instrument, effortlessly giving you even more of what you already have and love!

With its extraordinary dynamics and immediate feel, the OD-503 responds naturally and cleans up beautifully with either your pick-attack or your guitar's volume control while adding that "extra something" that makes your rig really sing.

Three simple controls, matched impedances, true-bypass and daisy-chain friendly "industry standard" 9VDC power make mating the OD-503 up to your setup a quick and satisfying affair, and when that red light kicks on the riffs begin to flow!