Roland A-500PRO-R

Pro Midi Keyboard Controller 49 Keys

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Space-Saving Keyboard Controller

If you're looking for keyboard controllers that you can use in the studio, on-stage, or anywhere you feel inspired, look no further than the A-500PRO. Is is a 49 key MIDI keyboard controller designed by Cakewalk and Roland. It provides real keyboard feel and response in a portable, yet ergonomic design. Perfect for anyone making music in a project studio or even at home with a computer. With such a stylish design and real keyboard feel, this is the perfect solution to your musical production needs.

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General Features:

  • Velocity-sensitive 49 keys with channel aftertouch
  • Inspiring feel & response for serious players
  • 45 assignable controls: knobs, sliders, buttons, transport & more
  • 8 Dynamic Pads for finger drumming & MIDI triggering
  • Sure-grip Pitch Bend/Modulation Stick
  • Expand playability with Sustain & Expression Pedals
  • USB Bus Powered — no AC adaptor required
  • Durable Roland-quality manufacturing & craftsmanship
  • Bundled with the Cakewalk Production Plus Pack
  • Includes three incredible instruments and production software
  • Works with any DAW on Mac or PC
  • Supports Windows 7 & Mac OS X Snow Leopard
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty


  • Keyboard 49 keys with velocity and channel aftertouch
  • Controllers: Pads: [A1]–[A8], Buttons: [B1]–[B4], [L1]–[L9], Knobs: [R1]–[R9], Sliders: [S1]–[S9], Foot Pedals: HOLD (P1), EXPRESSION (P2), Bender Lever: BENDER, MODULATION, Keyboard: AFTERTOUCH, [VALUE] knob
  • Buttons: [ACT] button, [<] button, [>] button, [DUAL] button, [SPLIT] button, [UPPER] button, [LOWER] button, [SHIFT] button, [TRANSPOSE] button, OCTAVE [–] [+] button
  • Display: 16 characters, 2 lines LCD with back lite
  • Side Panel: [POWER] Switch (USB/OFF/DC IN), [MIDI MERGE] Switch (ON/OFF)
  • Connectors: HOLD (P1) Pedal Jack: 1/4 inch phone type, EXPRESSION (P2) Pedal Jack: 1/4 inch TRS phone type, MIDI Connectors (IN, OUT), USB Connector, DC IN Jack
  • Power Supply: DC 9V AC Adaptor or USB Bus Power
  • Current Draw: 300 mA AC Adaptor or USB Bus Power
  • Accessories: A-PRO CD-ROM, Cakewalk Production Plus Pack DVD-ROM, USB Cable, Owner’s Manual, Cakewalk Production Plus Pack installation guide, License agreement
  • Options: Pedal Switch: DP-2/DP-10, Expression Pedal: EV-5/EV-7, AC Adapter
  • Dimensions: 33-1/16"W x 9-7/8"D x 3-5/8"H

Keyboard Features

Number of Keys
The number of keys on the keyboard of the MIDI controller.
Key Weighting
The type of weighting of the keys on the MIDI controller
Mod Wheel
The mod wheel is used to manipulate or modify the sound of the sample triggered by the midi controller often an effect like the rotary cab effect of an organ.
Pitch Wheel
The Pitch wheel is used to bend the pitch of the sample the MIDI controller is triggering.
Aftertouch is a signal representing sustained pressure that is interpreted by the MIDI device differently than initial velocity.
Octave Shift
A set of buttons that shift the keys up or down one octave for use on MIDI controllers that do not have a full 88-key keyboard.

Controller Specifications

Footswitch/Expression Pedal Input(s)
The ability for the device to be used with a footswitch, expression, or sustain pedal.
MIDI Connections
The configuration of input and output connections on a MIDI controller.
USB (Type A)
The ability for the MIDI controller to interface with a MIDI device via USB.
Power Supply
The power source for the controller.
AC Adapter
USB Bus Powered
The width of the item from left to right (side-to-side) measured in inches.
The height of the item, measured from top to bottom, in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
Weight (Pounds)
This is the weight of the item in pounds (lbs).
8-1/2 lbs

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
90 days
Warranty Provider

Summary of Customer Ratings & Reviews

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Roland A-500PRO-R

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Roland A-500PRO-R

Pro Midi Keyboard Controller 49 Keys


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