In Stock & Ready to Ship
Boss MD-500 Modulation
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Returns
Guitars & Basses (Online & Phone Orders)
We want you to be completely satisfied with your purchase. If you need to return a
guitar or bass, here’s what you need to know:- Returns must be initiated within 3 days of receiving your order.
- To initiate a return, call us at 412-343-5299 for a return authorization number.
- Return shipping is the customer’s responsibility, unless the item arrived damaged or the wrong product was sent.
- If your item shipped with “Free Shipping,” the original outbound shipping cost will be deducted from your refund.
- A 3.5% restocking fee applies to all canceled or returned orders to cover non-refundable payment processing fees.
- Items must be returned in original condition with all packaging materials included. For guitars and basses, that means protective plastic must still be intact on pickups and pickguards; all accessories, case candy, and paperwork must be included; original box and packing materials must be returned.
- We reserve the right to refuse returns or charge an additional restocking fee if items are not returned in original condition.
All Sales Final
We do not accept returns on the following:
- In-store purchases
- Local Pickup Orders (Buy Online / Phone)
- Layaway sales and payments
- Closeout or clearance items
- Purchases involving trades
- Instruments modified at the time of sale or after (example: strap button or pickup installation)
- Amps, Pedals & Electronics. Due to the nature of electronic products, we do not accept returns on amplifiers, pedals, or other electronic gear. If your item appears defective out of the box, contact us immediately — we’ll work with you and the manufacturer on a warranty resolution.
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Description
Boss MD-500 Modulation
Powered by advanced BOSS technology, the ultra-versatile MD-500 delivers nearly any type of modulation effect a musician could want, and then some. Included are 28 different algorithms with intensive programming parameters, offering a nearly limitless sound palette to create with. And with class-defying 32-bit AD/DA, 32-bit floating point processing, and 96 kHz sampling rate throughout, you’ll enjoy pristine sound quality that extends beyond the capabilities of the very best studio hardware.
Effects in the MD-500 include many new Prime types developed with cutting-edge BOSS tech, plus authentic sonic recreations of vintage classics like the CE-1 Chorus Ensemble, Roland Dimension D, ‘70s script phaser, ‘80s tri-chorus, and numerous others. With the ability to use two patches at once with A/B Simul mode, the MD-500 can likely cover all your mod needs with one convenient pedal. And by inserting drive pedals in the MD-500’s flexible external loop, it’s easy to place mod effects before, after, or around the loop as needed for the very best sound.
Features:
- Studio-level sound with first-in-class 32-bit AD/DA, 32-bit floating point processing, and 96 kHz sampling rate
- 12 modes and 28 modulation types, all with deep editing parameters
- Classic mod effects and BOSS originals, newly enhanced with cutting-edge technology
- A/B Simul mode for using two patches at once, with your choice of series/parallel connection and 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
The pedal comes with Boss's Factory Warranty and our 100% satisfaction guarantee!
Specifications
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Sampling Frequency 96 kHz
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AD/DA Conversion 32 Bits
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Processing 32-Bit Floating Point
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Modes 12 Modes; CHORUS, FLANGER, PHASER, CLASSIC VIBE, VIBRATO, TREMOLO, DIMENSION, RING MOD, ROTARY, FILTER, SLICER, OVERTONE
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Memory 198 (99 Banks X 2 [A] [B]), 297 (99 Banks X 3 [A] [B] [C)
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Nominal Input Level INPUT A/MONO, B; -10 dBu
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Maximum Input Level INPUT A/MONO, B; +8 dBu
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Input Impedance INPUT A/MONO, B; 1 M Ohm
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Nominal Output Level OUTPUT A/MONO, B; -10 dBu
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Maximum Output Level OUTPUT A/MONO, B; +8 dBu
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Output Impedance OUTPUT A/MONO, B; 2 k Ohms
Boss MD-500 Modulation
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Sampling Frequency 96 kHz
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AD/DA Conversion 32 Bits
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Processing 32-Bit Floating Point
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Modes 12 Modes; CHORUS, FLANGER, PHASER, CLASSIC VIBE, VIBRATO, TREMOLO, DIMENSION, RING MOD, ROTARY, FILTER, SLICER, OVERTONE
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Memory 198 (99 Banks X 2 [A] [B]), 297 (99 Banks X 3 [A] [B] [C)
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Nominal Input Level INPUT A/MONO, B; -10 dBu
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Maximum Input Level INPUT A/MONO, B; +8 dBu
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Input Impedance INPUT A/MONO, B; 1 M Ohm
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Nominal Output Level OUTPUT A/MONO, B; -10 dBu
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Maximum Output Level OUTPUT A/MONO, B; +8 dBu
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Output Impedance OUTPUT A/MONO, B; 2 k Ohms
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Recommended Load Impedance OUTPUT A/MONO, B; 20 k Ohms Or Greater
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Bypass Buffered Bypass Or True Bypass (With Relays)
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Controls A Switch, B Switch, TAP/CTL Switch, DOWN Button, UP Button, EXIT Button, EDIT Button, MODE Knob, RATE/VALUE Knob, DEPTH Knob, E.LEVEL Knob, PARAM 1 Knob, PARAM 2 Knob
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Display Graphic LCD (128 X 64 Dots, Backlit LCD)
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Connectors INPUT (A/MONO, B) Jacks, OUTPUT (A/MONO, B) Jacks; 1/4-Inch Phone Type, CTL 1,2/EXP Jack; 1/4-Inch TRS Phone Type, USB COMPUTER Port; USB Type B, MIDI (IN, OUT) Connectors, DC IN Jack; DC IN Jack
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Power Supply Alkaline Battery (AA, LR6) X 4, AC Adaptor; (Sold Separately)
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Current Draw 225 mA
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Expected Battery Life Under Continuous Use Alkaline; Approx. 4.5 Hours *These Figures Will Vary Depending On The Actual Conditions Of Use
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Accessories Owner's Manual, Leaflet; "USING THE UNIT SAFELY, Alkaline Battery; (AA, LR6) X 4






