BOSS MD-500 Modulation Pedal with 12 Modes and 28 Modulation Types (Open Box)
Product highlights
Product highlights
In the box
In the box
Free standard shipping
Free standard shipping
*Orders placed before 1 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy
Free Local Pickup
Free Local Pickup
Please call for store stock availability. Requests made before 2:30 PM EST can be available for next-day pickup. Learn more
Condition: Open Box
Condition Details: Fully functional item with opened or replaced packaging; essential accessories included.
The BOSS MD-500 Modulation Pedal delivers an expansive range of modulation effects with studio-grade sound quality and deep customization, making it a powerful tool for guitarists and sound designers.
Extensive Modulation Library
Features 12 modes and 28 modulation algorithms, including chorus, flanger, phaser, tremolo, rotary, vibrato, and more, along with unique effects like Slicer and Overtone.
Advanced Prime Algorithms
Enhanced modulation effects provide expanded tonal range, improved clarity, and deeper control with newly developed processing technology.
Studio-Quality Audio Performance
Utilizes 32-bit AD/DA conversion, 32-bit floating-point processing, and a 96 kHz sampling rate for highly detailed and transparent sound.
Vintage Effect Emulations
Includes accurate recreations of classic effects such as the CE-1 Chorus Ensemble, Dimension D, and other iconic modulation sounds.
Dual Effect Capability
A/B Simul mode allows two effects to run simultaneously in series or parallel, offering expanded tonal possibilities.
Flexible Signal Routing
An external loop enables integration of additional pedals, allowing effects to be placed before, after, or within the signal chain.
Intuitive Interface
A large LCD screen and hands-on controls provide easy navigation and quick adjustments, with dynamic parameter controls based on the selected effect.
USB Connectivity
Connect to a computer for patch editing, backup, and management using dedicated software.
Configurable Bypass Options
Selectable true bypass or buffered bypass allows seamless integration into any pedalboard setup.
BOSS MD-500 Modulation Pedal with 12 Modes and 297 Patch Memories
Product Overview
| Type | Advanced modulation effects pedal |
| Processing | 32-bit floating point |
| AD/DA Conversion | 32-bit |
| Sampling Frequency | 96 kHz |
| Memory Capacity | 297 patch memories (99 banks × 3: A/B/C) |
Modulation Modes
| Chorus | |
| Flanger | |
| Phaser | |
| Classic Vibe | |
| Vibrato | |
| Tremolo | |
| Dimension | |
| Ring Mod | |
| Rotary | |
| Filter | |
| Slicer | |
| Overtone |
Audio Performance
| Nominal Input Level | -10 dBu |
| Maximum Input Level | +8 dBu |
| Input Impedance | 1 MΩ |
| Nominal Output Level | -10 dBu |
| Maximum Output Level | +8 dBu |
| Output Impedance | 2 kΩ |
| Recommended Load Impedance | 20 kΩ or greater |
| Bypass | Buffered bypass or true bypass (relay-based) |
Controls & Interface
| Footswitches | A, B, TAP/CTL |
| Buttons | Down, Up, Exit, Edit |
| Knobs | Mode, Rate/Value, Depth, Effect Level, Param 1, Param 2 |
| Display | Backlit graphic LCD (128 × 64) |
Connectivity
| Inputs | 2 × 1/4-inch (A/MONO, B) |
| Outputs | 2 × 1/4-inch (A/MONO, B) |
| Expression/Control | CTL 1/2 / EXP (1/4-inch TRS) |
| USB | USB Type-B (computer connection) |
| MIDI | In/Out |
| Power Input | DC IN |
Power
| Power Options | 4 × AA batteries or AC adapter (sold separately) |
| Current Draw | 225 mA |
| Battery Life | Approx. 4.5 hours (alkaline) |
| Compatible Adapter | PSA-S series (optional) |
Physical Specifications
| Dimensions (W × D × H) | 6.7 × 5.4 × 2.4 inches (170 × 138 × 62 mm) |
| Weight | 2 lb 4 oz (1 kg) including batteries |
Included Accessories
| Owner’s manual | |
| Safety leaflet | |
| 4 × AA alkaline batteries |
Additional Features
| Studio-quality modulation effects with deep customization | |
| Extensive preset memory for live and studio use | |
| MIDI and USB integration for expanded control and editing |
Frequently Asked Questions
How do I return an item?
How do I return an item?
Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
Will I receive a full refund when I return an item?
Will I receive a full refund when I return an item?
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.
How many days do I have to make a return?
How many days do I have to make a return?
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days.
My item was damaged in transit. How do I place a return?
My item was damaged in transit. How do I place a return?
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage.
There’s an issue with my order, what should I do?
There’s an issue with my order, what should I do?
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.
Can I exchange an item?
Can I exchange an item?
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.
If I ordered a kit, do I have to return all the items?
If I ordered a kit, do I have to return all the items?
If you ordered a kit, you must return all components and accessories to receive a full refund.
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.
Do you offer repairs?
Do you offer repairs?
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.
What is your return policy?
What is your return policy?
Most items can be returned within 30 days for a full refund. Click here to read our full return policy.



