For Sale: Acorn Masterkey 49 USB MIDI Controller

Looking for a streamlined, no-nonsense controller to drive your virtual instruments? The Acorn Masterkey 49 is a fantastic, lightweight 49-note keyboard that fits perfectly on a studio desk or in a mobile rig. It’s class-compliant (plug-and-play), meaning you don't need to hunt for drivers—just plug it into your Mac or PC and start producing.

The Highlights:

• Velocity-Sensitive Keys: 49 full-size keys that respond well to your playing dynamics.
• Hands-on Control: Features an assignable volume fader and four real-time control knobs for tweaking synth parameters or mixer settings on the fly.
• Expression & Pitch: Dedicated pitch bend and modulation wheels, plus Octave Up/Down buttons to access the full keyboard range.
• Simple Connectivity: USB powered. It also has a 1/4" sustain pedal input on the back.
• Condition: Solid used condition. It shows some light surface wear and minor discoloration on a few keys from normal studio use, but it’s fully functional and ready to rock.

Measurements & Weight:

I’ve verified these dimensions with a tape measure to ensure it fits your workspace:

• Length: ~31.5 inches
• Width: ~7.5 inches
• Height: ~3 inches at the highest point
• Weight: ~4.5 lbs (Super lightweight and easy to carry)

Why this controller?

The Masterkey 49 is known for its slim profile. If you have limited desk real estate but need more than two octaves to play two-handed parts, this is one of the most space-efficient 49-key controllers ever made.