Check the listing for details. Boss ME-90 Guitar Multi-effects Pedal. Condition: Very Good - Refurbished. Listed at 346.49 USD. The Most Advanced BOSS ME Guitar Processor Yet The BOSS ME-90 is the company's most advanced ME-series all-in-one guitar processor to date, arming you with superior 24-bit AD/DA, powerful 32-bit floating-point processing, and intuitive stompbox-style operation. This tone-packed multi-effects pedal houses 11 onboard AIRD amp models, 60 flagship-grade effects, a dedicated amp section, and seven simultaneous effects categories. The ME-90 also supplies eight multifunction footswitches and an expression pedal for real-time control. Manual mode unlocks pedalboard-style operation, and Memory mode enables you to toggle between complete patch setups. You can also use BOSS Tone Studio software for fast-and-easy parameter editing, amp and effects configuration, and more.