A/B Simul lets you run two patches at once. A selectable series or parallel connection enables all sorts of tone-shaping possibilities, and you can even send each effect to its own separate output if you like. The MD-500 also features an external loop that lets you insert gain and drive pedals, and set the ideal effect order on a per-patch basis. For example, you can place a phaser or classic vibe before a drive pedal in one patch, while putting a flanger after the drive in the next. When you're in A/B Simul mode, it's even possible to position the loop between two different mod effects.
Control PossibilitiesThe MD-500 offers freely assignable switches and extensive real-time controls. By default, the A, B, and TAP/CTL switches offer control for patch/bank selection and bypass, plus tap tempo or real-time adjustment of one or more parameters. However, the switches can be customized to access three different mod patches, A/B Simul mode, and other functions. Via the rear-panel CTL 1,2/EXP jack, you can plug in up to two footswitches for further control, or an expression pedal to adjust wah, effect rate, and other parameters. MIDI I/O is also included, enabling further creative possibilities with advanced setups.
Key Features at a Glance- Effects delivered with 32-bit AD/DA, 32-bit floating point processing, and 96 kHz sample rate
- 12 modes and 28 modulation types, all with extensive editing parameters
- Classic, though updated, BOSS modulation effects
- A/B Simul mode for using two patches at once, with your choice of series/parallel connection, mixed, or split A/B output
- Insert Loop function allows you to use mod effects before, after, or around drive pedals
- Graphic LCD and intensive real-time control options
- 297 onboard patch memories and hands-on controls
- Selectable buffered-bypass or true-bypass operation
- MIDI I/O for interfacing with MIDI control devices
- USB-MIDI for connecting to the MD-500 Editor/Librarian or a DAW
- Runs on four AA-size batteries or PSA-series AC adapter (available separately)
- Chorus: Prime, CE-1 Chorus, CE-1 Vibrato, and TRI-CHO
- Flanger: Prime G (for guitar) and Prime B (for bass)
- Phaser: Prime G (for guitar), Prime B (for bass), and Script
- Classic Vibe: Chorus (mixed output) and Vibrato (effect-only output)
- Vibrato: Prime and Scanner (a tonewheel organ-style vibrato)
- Tremolo: Prime T and Prime P, plus Twin and Deluxe amp-style tremolo
- Dimension: Models Roland SDD-320 Dimension D rack unit; includes the original four sound modes and a fifth mode new to the lineup, plus a user setting for saving any combination of modes
- Ring Mod: Classic ring modulation effects, plus Intelligent mode for enhanced clarity when playing scales
- Rotary: Vintage rotating speaker effect with slow and fast speeds
- Filter: Auto wah and touch wah (with independent types optimized for guitar and bass), plus pattern filter type
- Slicer: Original BOSS effect derived from the popular SL-20 Slicer, with programmable options not available in the SL-20 pedal
- Overtone: Original BOSS effect based on the MO-2 Multi Overtone pedal; uses MDP tech to alter the input signal’s pitch and harmonic characteristics, allowing you to create interesting sound textures
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| Condition | Mint (Used) Mint items are in essentially new original condition but have been opened or played.Learn more |
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