Keith McMillen K-Mix BLUE Programmable Mixer and MIDI Controller

High Performance – The Keith McMillen K-Mix BLUE Programmable Mixer and MIDI Controller

K-Mix BLUE is a performance upgrade of the K-Mix high-quality 8 × 10 digital mixer, USB audio interface, and advanced touch-sensitive MIDI/DAW control surface.

• Upgraded, ultra-accurate and low noise µPre preamps
• New ultra-durable ABS-Polycarbonate finish
• Full Ableton Live 11 control surface integration

Digital Mixer

• High Pass Filter, three band EQ, gate, and compressor on every channel
• On-board reverb with dedicated send/return bus
• Flexible routing to four stereo output buses and USB
• Headphone monitoring of channels, busses, or a dedicated mix
• Standalone Quad, 5.1, 7.1 and Octo Surround Mixer
• Onboard preset storage
• No computer required

Audio Interface

• USB bus powered
• Ultra-low noise µpre preamps
• High-end AKM converters
• 32-bit floating point signal path
• 8-in/10-out audio

Control Surface

• Ultra-sensitive precision rotaries and faders
• User Assignable MIDI Controls in Three Banks
• Light weight and portable
• Rugged construction, no moving parts

SPECIFICATIONS

Audio

• Input Channels: 8 balanced inputs, signals up to +28 dBu
• Output Channels: 10 Outputs (8 balanced)
• Bit Depth: 24-bit AKM converters, 110 dB dynamic range
• Sample Rate: 44.1 kHz, 48kHz, 88.2 kHz, 96 kHz
• Internal Latency
• ~2.5 ms at 69 kHz
• ~2.75 ms at 88.2 kHz
• ~5 ms at 48 kHz
• ~5.5 ms at 44.1 kHz

Connections

• Analog Inputs
• 2 XLR/TRS combo jacks: XLR Mic/Line Inputs (balanced), Hi-Z Inst/Line 1/4” TRS Inputs (balanced)
• 6 1/4 inch TRS Connectors (line/phono, balanced)
• Analog Outputs
• 8 1/4 inch TRS Connectors (balanced)
• 1 stereo 3.5 mm TRS headphone output
• Less than 50 Ohms output impedance
• + 2.6 dBV max output level
• Digital: 1 micro-USH (Audio I/O, MIDI I/0, Power), 1 mini-USB (power, Expander MIDI)

Controls

• Faders
• 8 channel faders (75 mm)
• 12 LED indicators per channel fader
• 1 master fader with 24 LED
• MIDI position CC output on all faders
• Rotaries
• 4 rotary controls (360°)
• 16 LEDs per rotary
• MIDI position CC output on all rotaries
• Buttons
• 9 Channel Select Buttons
• 4 Bank Select Buttons
• 17 Function Buttons
• MIDI note output on all buttons

Mic Preamps

• Number: 2 µPre mic pres
• Phantom Power: + 4 8V or + 12 V phantom power
• Gain: + 60 db additional gain
• THD + Noise: -105.12 dBu at 0 dB gain, 20Hz–20kHz (unweighted); -116.49 dBu at 0 dB gain, 20Hz–20kHz (A weighted)
• EIN: -127.0 dBu, 150ohms at 20 Hz–20 kHz max gain (unweighted)
• Frequency Response: ± 0.03dB at 20Hz–20kHz (44.1kHz, unweighted); ± 0.15dB @ 20Hz–40kHz (96kHz, unweighted)

Processing

• Equalization: 3-band semi-parametric EQ, ±18dB cut/boost
• Compressor: Compressor/Limiter on each channel, adjustable threshold, attack, release, and makeup gain
• Gate: Noise gate on each channel, adjustable threshold, attack, release, and gain reduction
• Reverb: Master reverb with individual sends per channel
• Surround: Quadraphonic, 5.1, 7.1, and Octophonic surround output, each channel assignable to one of four surround panners, optional bass management crossover

We are Chuck Levin's Washington Music Center

Since 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.

Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.