Marantz Professional Rack Mix 12 | Slim 12-Channel Line Audio Mixer with Priority Control

Lightweight, slim 1U rack-mountable 12 channel mixer
6 HDHQ combination inputs with MIC, Phantom and Line selector switches; 6 mono (3 stereo) RCA Inputs
Balanced XLR line outputs; mic monitor 1/4″ output; mono 1/4″ line output

The Marantz Skilled Rack Mix 12 is a light-weight, ultra-slender 1U rack-mountable 12-channel mixer with 6 HDHQ mic/phantom/line combination inputs and 6 additional line inputs.

It has balanced XLR outputs, a 1/4-inch mono output that can be utilized to hook up with a remote mixer, a couple of RCA stereo outputs to hook up with a remote recording device, and 1/4-inch mic monitoring port that can be utilized to privately monitor the mics’ signals.

The Rack Mix 12 supplies individual level Keep watch over for all inputs along with level Keep watch over for the mono output port and a master level Keep watch over. It has a three-level equalizer and a controlled priority for Mic/Line 1.

Technical Specifications

Microphone Input: 6 Balanced XLR Connectors (Channels 1–6)

  • Frequency Response: 20 Hz – 22,000 Hz
  • THD+N: < 0.03% @ 1 kHz
  • Sensitivity: -40 dBu
  • Maximum Input: -19 dBu
  • Maximum Voltage Gain:
    • 60 dB (Mic Input to Line Out, Mic Out & Mono Out)
    • 50 dB (Mic Input to Rec Out)
  • Signal-to-Noise Ratio: > 103 dB
  • Phantom Power: 18–21 V, switch control

Line Inputs: 6 Balanced XLR Connectors (Channels 1–6)

  • Frequency Response: 20 Hz – 22,000 Hz
  • THD+N: < 0.03% @ 1 kHz
  • Sensitivity: 0 dBu
  • Maximum Input: +21 dBu
  • Maximum Voltage Gain:
    • 20 dB (Mic Input to Line Out, Mic Out & Mono Out)
    • 10 dB (Mic Input to Rec Out)
  • Signal-to-Noise Ratio: > 103 dB

Line Inputs: Stereo Balanced RCA Connectors (Channels 7/8-11/12)

  • Frequency Response: 20 Hz – 22,000 Hz
  • THD+N: < 0.03% @ 1 kHz
  • Sensitivity: +10 dBu
  • Maximum Input: +21 dBu
  • Maximum Voltage Gain:
    • 10 dB (Line Input to Line Out)
    • 0 dB (Line Input to Rec Out)
    • 4 dB (Line Input to Mono Out)
  • Signal-to-Noise Ratio: > 103 dB

Impedance:

  • Mic/Line Input: 1.4 kΩ
  • Line Input: > 10 kΩ
  • All Outputs: 120 Ω

Equalizer:

  • High: +15 dB @ 12 kHz
  • Mid: +12 dB @ 2.5 kHz
  • Low: +15 dB @ 80 Hz

Crosstalk:

  • Adjacent Inputs:
    • < -70 dB @ 1 kHz (Channels 1–6)
    • < -68 dB @ 1 kHz (Channels 7/8–11/12)
  • Input to Output:
    • < -82 dB @ 1 kHz

Main Mix:

  • Line Output: 0 dBu (+2 dBu), balanced
  • Mic Output, Mono Output: 0 dBu (+2 dBu), unbalanced
  • Maximum Output: +21 dBu balanced/unbalanced, 1/4” (6.35 mm) jacks
  • Noise (Bus): < -83 dB @ 20 Hz – 22,000 Hz

Power:

  • Connection: IEC
  • Input Voltage: 100V~, 110-120V~, 50/60Hz; 220-240V~, 50/60Hz or DC24V

Dimensions: (width x depth x height): 19.0” x 7.7” x 1.7” (483 x 195 x 44 mm)

Weight: 6.4 lbs, 2.9 kg

Box Contents

  • Rack Mix 12
  • Rack Ears
  • (6) Rack Ear Screws Power Cable
  • User Guide
  • Safety & Warranty Manual

Lightweight, slender 1U rack-mountable 12 channel mixer
6 HDHQ combination inputs with MIC, Phantom and Line selector switches; 6 mono (3 stereo) RCA Inputs
Balanced XLR line outputs; mic monitor 1/4″ output; mono 1/4″ line output
Mic 1 Priority Keep watch over, Master and Individual level controls
AC or 24V DC power inputs

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