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Acorn Instruments Masterkey 25 USB MIDI Controller

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Product Description

• Get a grip
The pitch bend / modulation wheels and the fader cap have a rubberized coating that provides additional grip, minimizing the chance of performers losing their grip. They look great and feel great on the fingertips too.

• Real-time functions
By default two buttons below the LED display operate as octave shift buttons -/+ extending the range of the keyboard 4 octaves up and 3 octaves down. The buttons can in addition be assigned to control Transpose, Program Change or MIDI Channel providing a total of 4 options. Press the two buttons at the same time, then scroll through the options using the - or + button until you have found the one you want.    

• Connnectivity

Masterkey 25 is easy to connect. One USB cable handles data transfer to your computer and also provides the power. It's also USB class compliant, so driver installation is not needed. All you have to do is switch the power button to On! An input jack is also available for an optional sustain pedal. Masterkey 25 automatically detects the polarity of the footswitch you connect, so any standard pedal can be used. If you don't have a pedal, check out the FP-1 and FP-2 pedals at the bottom of this page.
• Assigning Controllers and Edit
Masterkey 25 would not be a controller keyboard without its real-time controls and the ability to assign MIDI CC's to each of them. Thanks to the LED display it's easy too. Once in Edit mode, pressing the black keys will show the various menu options. No need to refer to the manual or a keyboard chart, it's all there in the display. Select the key for assigning MIDI CC's and type in the number. It's that easy.

Studio One™ Artist Software Features:

• Elegant single-window work environment
• Powerful drag-and-drop functionality
• Unlimited audio tracks, MIDI tracks, virtual instruments, buses, and FX channels
• Content browser with convenient sort options and preview player
• Most intuitive MIDI-mapping system available
• Real-time audio time-stretching and re-sampling
• Automatic delay compensation
• Advanced automation
• Instantly configures to PreSonus audio interfaces
• Compatible with ASIO-, Windows Audio-, and Core Audio-compliant audio interfaces
• 25 Native Effects™ 32-bit effects and virtual instrument plug-ins
• 4+ GB of third-party software, loops, and instruments


• System Requirements:
• Mac

PowerPC G4 1.25GHz, Intel Core Solo 1.5GHz processor (PowerPC G5, Intel Core Duo, Intel Xeon processor or better recommended)
1GB RAM (2GB RAM recommended)
DVD-ROM drive
1024 x 768 minimum display resolution
Internet connection (for software authorization)

• PC

Intel Pentium 4 1.6GHz or AMD Athlon 64 (Turion) processor (Intel Pentium 4 2.8GHz EM64T or better, AMD Athlon 64 3000+ or better recommended)
Windows XP, Vista, or Windows 7
1GB RAM (2GB RAM recommended)
Low latency audio sound card
DVD-ROM drive
1024 x 768 minimum display resolution
Internet connection (for software authorization)

• Power Requirements: USB Bus Powered
• Dimensions (WxDxH): 18.5 x 7.5 x 2.3" (470 x 191 x 57mm)
• Weight: 4.2 lb (2kg)

Other Details

Acorn Instruments
Manufacturer's Suggested Retail Price:
Number of Keys:
25 Key
Built in Speakers:

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