Keith McMillen Instruments

Keith McMillen Instruments

KMI products provide innovative hardware and software technologies that allow musicians to interface with computers in exciting new ways.


The K737 K-Mix is a portable, programmable mixer, and high-quality USB audio interface, with an advanced touch sensitive control surface complete with on board digital effects. K-Mix is an unbreakable, 8-in/10-out programmable mixer and audio interface. K-Mix features 2 ultra-accurate, high-efficiency low noise µPre preamps, and a precision opto-tactile control surface that was designed from the ground up for an unprecedented level of control. We've made super clean audio more accessible, so you can focus on the music. K-Mix is a go-anywhere, fully-programmable, audio multi-tool that can meet all your needs as an artist, whether you're in the studio or on the road. With no moving parts, K-Mix can be transported in a backpack without the fear of snapping off a fader or knob, while still giving you unrivaled audio quality, mixer functionality, and control. The software editor and windows driver for the K-Mix areavailable for download athttps://pearl-electronics-support.com/

K-Board Controller

A deeply expressive, durable, plug and play USB MIDI keyboard with gesture control designed for computers, tablets and mobile devices. K-Board is your key to quick and easy music production, at home or on the go. K-Board works with all of your music software out of the box, connecting to your tablet or computer instantly, while also offering you room to grow - as your skills advance you can explore the touch sensitive keys to add effects and expression to your music. K-Board is designed to be accessible to musicians of all ages and expertise. K-Board is a plug and play USB MIDI keyboard that is affordable, durable, and deeply expressive. Its brain matches its brawn - tough enough to take whatever abuse you can throw it’s way, yet smart enough to sense even the most subtle gestural controls. K-Board can unleash your creativity while keeping up with your on-the-go lifestyle. The software editor for the K-Board is available athttps://pearl-electronics-support.com/


Extremely powerful ultra-wide dynamic range USB Smart Fabric 10” drum pad with programmable zones, velocity, bend, pressure and location CCs. The BopPad allows you to bring a new range of sonic possibility to your drum set, trigger samples, sound effects, pads and chords. BopPad gives you accurate hit detection (with latency under 3ms!), velocity, continuous radius and pressure. Four independently programmable zones output MIDI notes, velocity, pitch bend, pressure and location CCs. The BopPad is the ultimate drum pad controller. Whether you play with hands, sticks, or mallets it will provide you with a thrilling amount of control and flexibility. Connects to 5-Pin MIDI with the optional MIDI Expander. The software editor for the BopPad is available athttps://pearl-electronics-support.com/

QuNeo Controller

More than a pad controller, a revolutionary precision control device with dynamic playability that senses pressure, finger position, and velocity while providing LED feedback. QuNeo is a different species of pad controller for electronic musicians, DJs, VJs and DIYers. While it covers all of the functionality of other pad controllers, QuNeo adds the power of touch recognition in other dimensions. Each of the 27 pads, sliders and rotary sensors are pressure, velocity, and location sensitive. Even the 17 switches respond to how hard you press. 16 square pads provide 127 levels of velocity response, X-Y location, and continuous pressure. Two rotary sensors allow you to scrub, trigger, stretch, pinch and play phrases and sound files, manipulate continuous controllers and more. Each rotary sensor measures angle, pressure and distance from the center. Nine touch sensitive sliders can be mapped to fader and effects controls. LEDs within each slider act as VU meters or remind you where you were. Multi-touch lets you select a length between two fingers to set stereo locations or filter resonances. Tapping a slider can mute or toggle any track or function. Switches are located in smart groupings to select samples, fader banks, and transport controls. Each of the switches can scan up and down through files at speeds variable with your touch. QuNeo is the size of an iPad and can fit in iPad accessories such as mic clips, stands and more. QuNeo works with USB, MIDI or OSC and will communicate with your favorite music software environments right out of the box. More advanced users and programmers can use the development kit and API to create their own code to respond to QuNeo's sensor data. KMI MIDI Expander (sold separately) allows connection to MIDI hardware via 5-pin connection. The software editor for QuNeo is available athttps://pearl-electronics-support.com/

QuNexus Controller

A super compact, extremely durable, versatile and highly programmable 25 note keyboard controller designed to be deeply expressive and connect through USB, CD Gate and 5-Pin MIDI. QuNexus is a vividly illuminated keyboard controller that is both fun for beginners and a must have for professionals. 25 touch-sensitive keys detect finger pressure, velocity, and tilt, giving you unprecedented musical control. Blue and white LED illumination with 16 levels of brightness give the user valuable feedback. Use the toggle/hold mode to create your own step sequencer or arpeggiator with LED feedback. QuNexus is the first keyboard controller to unite four generations of synthesis control: MIDI, Control Voltage, OSC and USB. MIDI Expander required for 5-pin MIDI connection (sold separately). The software editor for QuNexus is available athttps://pearl-electronics-support.com/

SoftStep 2 Controller

Softstep 2 is the world’s most powerful USB MIDI foot controller with gesture-sensitive pads registering pressure and position. Perfect for controlling Ableton Live, guitar processors and virtually anything that accepts MIDI control while providing LED feedback. SoftStep 2 is the world's most powerful MIDI foot controller. SoftStep 2 is USB powered and compatible with any music software. Each pad detects foot pressure and directional movements, for a myriad of control possibilities. SoftStep 2 is fully customizable with the Editor software and is capable of sending Notes, CCs, Program Change, MMC, and OSC messages per pad. SoftStep 2 will also control 5-pin MIDI hardware without a computer, using the KMI MIDI Expander (sold separately). The software editor for SoftStep 2 is available at www.pearl-electronics-support.com. The software editor for SoftStep 2 is available atwww.pearl-electronics-support.com

12 Step Controller

A road-proof, brilliantly backlit pressure and tilt sensitive chromatic MIDI foot controller that allows triggering of notes, chords, clips, tracks, and parameters such as pitch bends, volume and MIDI functions. 12 Step opens up another dimension in performance by giving your feet unprecedented control over expressive gestures. Play and control your soft-synths, keyboards or sound modules via USB or MIDI. Latch notes or chords, toggle them on/off or play legato. Foot Pressure and Key Tilt supports Channel Pressure and Polyphonic Aftertouch for highly expressive performance gestures. 12 Step is easy to see on stage thanks to the backlit keys and display. Use it with your iPad and iOS devices - just plug and play! Optional MIDI Expander is required to connect to MIDI hardware. The software editor for 12 Step is available athttp://www.pearl-electronics-support.com/

MIDI Expander

The MIDI Expander is a 5-pin MIDI In andOut box that enables communication from KMI products which are USB MIDI to traditional 5-pin MIDIhardware devices.

BopPad Mount

BopPad Mount connects to a cymbal stand providing a convenient way to incorporate BopPad into your drum kit. Its anodized aluminum frame ensures it is both lightweight and rugged and the M8 thread is compatible with most cymbal stands available today!

QuNexus CVKit

The QuNexus CV Cable Kit is an optional add on, which makes it easy to gather the cables and adapters needed to convert MIDI to CV and vice versa using QuNexus.One of each of the following cables/adapters is included in the CV Cable Kit!


Pearl and Keith McMillen Instruments have announced their entry into the MPE (Midi Polyphonic Expression) keyboard controller market with the K-Board Pro 4. The K-Board Pro 4 is a four-octave Midi keyboard controller based on the traditional look of a piano with multiple levels of touch sensitivity in each key. It sends attach velocity, release velocity, continuous pressure, horizontal position and vertical position data to offer the deepest level of musical expression. This unique function is achieved by sending control messages to multiple midi channels, allowing the commands to be transmitted separately rather than the conventional method where the controls function globally and the effects are unison. K-Board Pro 4 features KMI's patented Smart Sensor Technology that is the core of all the KMI control surfaces. K-Board Pro 4 is USB powered and class compliant to ensure both portability and compatibility with MacOS, Windows iOS, Android as well as MIDI capable hardware.