Roland A-300 PRO Keyboard Controller

32-key MIDI Keyboard Controller with 45 Assignable Controls (Knobs, Sliders, Buttons, Transport) - Mac/PC
Roland A-300 PRO Keyboard Controller image 1
Roland A-300 PRO Keyboard Controller image 1
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Roland A-300 PRO Keyboard Controller
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Major MIDI Control!

Way more than a keyboard! Roland's A-300 PRO is one serious MIDI controller. Beyond having 32 velocity-sensitive keys for playing virtual instruments, this beast boasts a total of 45 assignable controls - knobs, buttons, sliders, and more. You can assign out the controls however you want, so you can get your hands on your mix, finger drum on the 8 Dynamic Pads, control recording start/stop/playback... whatever your workflow demands. If you're choosing your first MIDI controller, you can't go wrong with the A-300 PRO. The keys glide under your fingers, you've got controls for whatever you want, and it works with your Mac or PC. Nice.

When you're getting a MIDI controller, you've got factors to consider. Mainly, you want to make sure you have the level of control you need. Why have only keys, then, when you can grab the A-300 PRO and load up with 32 keys plus 45 different controls for your DAW? If portability's a concern also, the A-300 PRO still fits the bill. It can be powered by your Mac or PC over USB - no need for an AC adapter, unless you want one. That means the A-300 PRO and your laptop are a perfect pair for your music-making needs.

Roland A-300 PRO 32-key MIDI Controller Features at a Glance:
  • 32-key MIDI controller with velocity-sensitive keys
  • 45 assignable controls: knobs, sliders, buttons, transport, and more
  • 8 dynamic pads for finger drumming and MIDI triggering
  • Sure-grip Pitch Bend/Modulation stick
  • Sustain and Expression pedal jacks to expand playability
  • USB bus powered - no AC adapter required
  • Both Mac and PC compatible
Load up with a feature-packed MIDI controller and start making music!

Tech Specs

Number of Keys 32
Type of Keys Semi-weighted
Aftertouch Yes (via rotary encoder)
Pads 8
Other Controllers Pitch/Mod Lever
Encoders/Pots 9
Faders 9
Dedicated Transport Control Yes
Pedal Inputs 1 x Hold, 1 x Expression
USB 1 x Type B
OS Requirements - Mac OS X 10.4 or Later
OS Requirements - PC Windows XP (SP2), Windows Vista, Windows 7
Power Supply Bus Powered, AC Adapter
Height 3.63"
Width 23.88"
Depth 9.88"
Weight 6.44 lbs.
Manufacturer Part Number A-300PRO-R

Customer Reviews

Based on 6 reviews
Write your review

Great Little Controller

Seeing as I write my music from the road, this was a great addition to my setup. The full sized keys feel great, the pads have good response, and the knobs/faders have good response. Tons of options with mapping too. Within about 15 minutes, I had it figured out and I was making music. I've experimented around with a lot of other mini controllers, and this on by far takes the cake. I definitely recommend this keyboard/controller for anyone who makes music on the go.
Music background: Musician

Perfect for Home Studio & DAW Applications!

A compact workhouse. Perfect for writing music and turnkey with Sonar.
Music background: Student



Love this Keyboard Controller

I am just getting started using a DAW, Sonar X1 Pro. And this works great with the program. So many options, and so much to learn. But this was easy to hook up, and within a few minutes, I was ready to start playing. I'm a drummer, but getting this, I want to learn more about playing the piano and keyboards...
Music background: Pro Musician, Recording Engineer, Live Sound Engineer

Exceptional Controller / Admirably Priced

The A-300 was purchased to replace an Edirol PCR-300, which it shares many of the same features/functionality, all updated (and with Roland branding). If you are familiar with the PCRs, then you will have no problem immediately working with the A-300 [500/800]. I do like now that Roland added a bright 2x16 character LCD display, as the PCR's 2 character display was a chore to deal with. Gone is the horizontal mix slider of the PCR and the dynamic pads have been updated with nice, thick soft rubber pads which really make a difference when triggering/finger drumming. The sliders, of which there are nine, have also been updated with hard-rubber mixing desk-like concave grips. The entire build quality is high and on-par with Roland's professional synths. I use the A-300 in a Mac production environment, with Logic and Digital Performer as the main workstations. After the necessary driver installations, the A-300 paired immediately with Logic with preset factory controls [ACT parameters] - which were fine - however, i preferred to set up the controller in a way optimal to my working ideals, thus I created Control Maps specifically for these tasks. The Control Maps setup was identical to how the PCRs operated. Pairing with Digital Performer required the A-300 to be in a specific DP Control Map, but that was not a problem. The A-300 functions as a MIDI Interface as well and I used it as a means to control NI Battery by way of the V-Drums and it works without any issues. Amazingly, the A-300 is entirely USB bus powered only drawing 300mA of power. I chose the A-300 mainly based on my experience with the PCR and I enjoy the workflow presented by these Roland controllers, most specifically being able to immediately change Upper and Lower MIDI parts on the keyboard and instant Split and Dual - with memory recall. Switching Control Maps is quick and seamless. I definitely have mixed feelings with Roland's pitch/modulation stick as I do prefer separate pitch and modulation as on other products, although it is not a deal breaker by any means. The keyboard has the same velocity/channel aftertouch synth action as Roland's V-Synth series, but semi-weighted would be a plus for a future product. Perhaps even a D-Beam too. I would like to mention that I used, on a whim, the A-300 with an installation of SONAR in Windows 7 via Parallels in OS X and it is here where the full breadth of functionality of the A-300 can be seen. The A-Pro Utility in SONAR is incredible and would hope(wish) that Roland would provide this for Mac DAW users, as it potentially increases productivity in reassigning controls on the A-300 while within the DAW. If you are a Windows user, then this controller (at least with SONAR) is indispensable. In conclusion, I would recommend the A-300 (or 500/800), it possesses impeccable amount of controls and superior build quality. By comparison, in addition to using the PCR series, I have also used controllers from M-Audio, Alesis, and Korg ( with the Korg Kontrol49 being one of my favourites of all time).
Music background: Musician 30+ Years, Synthesis / Sampling Emphasis
See also: Controller Keyboards, Roland, Roland MIDI Controllers