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Keith McMillen Instruments K-Mix Audio Interface


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Finance Available from £16.93 per month

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01925 582 420

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  • 8 in, 10 out audio interface and programmable mixing desk
  • Tough unit with no moving parts making it almost indestructible
  • Flexible routing and per-channel DSP
  • Ultra-sensitive touch controls for precision touch controls
  • Studio grade audio quality; USB bus powered
  • 2 ultra-accurate, high-efficiency low noise μPre preamps
  • Touch rotary controls with 16 LED's
  • Compatible with Mac and PC
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Delivery & Returns

Delivery to UK mainland addresses* is FREE on orders over £75 and up to 30kg. (As a guide, a standard electric guitar weighs approx. 3-5kg).

Delivery on orders below £75 are charged at £4.45!

Delivery to Northern Ireland, the Scottish Highlands & Islands, Isle of Man, Isle of Wight, Channel Islands and the Republic of Ireland. is weight dependant and will be indicated at the checkout

Delivery above 30kg to ANY location will vary according to weight and will be indicated at the checkout

LocationPriceStandard Delivery
UK mainland*FREE on orders over £75 £4.45 on orders under £751-3 working days
Northern Ireland, Scottish Highlands & Islands Isle of Man Isle of Wight Channel Islands Republic of Ireland£12.95 – any order value up to 30kg Over 30kg - please call1-3 working days
OverseasPlease call for detailsPlease call

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Giving you a near-indestructible music production tool with incredible power and innovation throughout, the Keith McMillen Instruments K-Mix is an 8-in/10-out audio interface and programmable mixer rolled into a tough unit that can be thrown in a bag and taken anywhere without fear of damaging any parts. If you need quality mixing on the go, the K-Mix is definitely for you.

Master of all trades

The Keith McMillen K-Mix can be used for many different set-ups. Using it as a pro-quality USB audio interface you can take advantage of the µPre pre-amps to achieve world class recordings either at home, in thee studio or on the stage.

The K-Mix can also be used as a fully programmable mixer complete with per-channel DSP effects, flexible routing and you don't need a computer for it to function. If you do use a DAW, then the K-,ix can help you here too thanks to its ability to be used as a precision, opto-tactile control surface (compatible with Mac and PC).

LED power

All adjustable controls of the Keith McMillen K-Mix are touch sensitive, sealed pads that are ultra-sensitive for precision adjustment. Ideal for operation in dark studio's or on dark stages, the ability to change levels, trigger built in effects, control your computer and more are laid out clearly so you can concentrate on your music.

The Keith McMillen K-Mix is USB bus powered with an expand option to chain out to power another unit. Other connections include 2 TRS Jack/XLR combo inputs, 6 1/4" jack inputs and 8 1/4" jack outputs making the K-Mix incredibly flexible when it comes to fitting into an existing rig.

The Keith McMillen K-Mix was built because there is no other device in existence that can lend itself to so many different scenarios and does it with an emphasis on on both durability and quality. Once you start to use the K-Mix, you'll wonder how you ever made music without it.

ManufacturerKeith McMillen Instruments
Model NameK-Mix Audio Interface
Input Channels 8 Balanced Inputs
Signals up to +28dBu
Output Channels 10 Outputs (8 balanced)
Bit Depth 24-bit AKM Converters
Analog Inputs 2 XLR/TRS combo jacks: XLR Mic/Line Inputs (balanced), Hi-Z Inst/Line 1/4” TRS Inputs (balanced)
6 1/4” TRS Connectors (line level, balanced)
Analog Outputs 8 1/4” TRS Connectors (balanced)
Digital 1 Micro-USB (Audio I/O, MIDI I/O, Power)
1 Mini-USB (MIDI I/O via KMI Expander, Power)
Faders 8 channel faders (75mm)
12 LED indicators per channel fader
1 master fader with 24 LEDs
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 2 ultra low-noise µPre mic pre's
Phantom Power +48V phantom power
Gain +60db additional gain
THD + Noise -107.6 dBu @ 0dB gain, 20Hz–20kHz (unweighted)
-120.5 dBu @ 0dB gain, 20Hz–20kHz (A weighted)
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 2 ultra low-noise µPre mic pre's
Mic Preamps Quadraphonic, 5.1, 7.1, and Octophonic surround output
Each channel assignable to one of four surround panners
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