WORKING CONDITION: Excellent. All pads and faders illuminate properly, and the connections are quick and accurate, using a Mac USB port. The faders and pads have a nice, tactile feel and respond instantly to touch. 

PHYSICAL CONDITION: Good. Note that this item had the issue where the surface becomes tacking from the aging rubber-like finish. This was cleaned off with alcohol wipes but in the process it also removed some of the lettering and faded the graphics. The surface in now clean and smooth to the touch. 


INVENTORY #59264

BRAND: Keith McMillen Instruments

MODEL: K-MIX

FUNCTION: Programmable Mixer USB Audio Interface

PRODUCT DESCRIPTION: This listing is for a Keith McMillen Instruments K-MIX Programmable Mixer USB Audio Interface. 

SPECS:

• Serial # 737-000413
• Three Core Functions
  • Standalone Mixer: Operates completely free of a computer with onboard processing, custom internal routing, and up to 12 recallable presets.
  • Audio Interface: Delivers 24-bit/96kHz class-compliant audio across an 8-input and 10-output configuration, working seamlessly with Mac, Windows, and iOS.
  • DAW Control Surface: Maps its touch-sensitive sliders and rotaries to command major software setups like Ableton Live through three distinct MIDI banks.
• Hardware Specifications
  • Audio Inputs: Includes 2 upgraded µPre microphone preamps with +48V phantom power on XLR/TRS combo jacks, alongside 6 balanced line-level 1/4" TRS jacks.
  • Audio Outputs: Features 8 balanced 1/4" TRS line outputs alongside a separate 3.5mm stereo headphone monitoring jack.
  • Internal Processing: Driven by a 32-bit floating-point DSP signal path supporting a 3-band semi-parametric EQ, compressor/limiter, noise gate per channel, and an onboard master reverb.
  • Surround Sound: Fully hardware-capable of complex multi-channel formats including Quadraphonic, 5.1, 7.1, and Octophonic mixing.
  • Physical Build: Measures roughly 23.5 x 16.8 cm, weighs under 800 grams, and features a rubberized opto-tactile interface heavily backlit by red and blue diagnostic LEDs.

ACCESSORIES INCLUDED: This item comes as seen in photos and includes a USB 2.0 Micro B cable

UNPACKAGED WEIGHT: 3 lbs.

UNPACKAGED DIMENSIONS: 10" x 2" x 7"