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Radial Engineering
MC3 Studio Monitor Controller

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Item: N13-1979

Availability: Out of stock

MC3 Studio Monitor Controller
MC3 Studio Monitor Controller MC3 Studio Monitor Controller MC3 Studio Monitor Controller MC3 Studio Monitor Controller


Compare your mix on multiple sources without any coloration or distortion.

The Radial MC3 monitor controller is a studio tool that enables you to quickly select between reference monitors, sub woofer or headphones and compare how the mix translates via various playback systems. Unique to the MC3 is the ability to quickly sum mono for AM radio compatibility

And while most monitor switchers are active the MC3 is 100% passive. This means that unlike active switchers that introduce a buffered electronic circuit in between your recording system and monitors, the MC3 delivers straight wire performance. This eliminates coloration and distortion for more accurate monitoring.

The MC3 features an easy access level control that lets you quickly set playback levels on all speakers.

Each output is equipped with a top-mount 'set & forget' dial to fine tune outputs for the ideal balance. The sub is augmented with a 180 degree polarity reverse to help deal with room modes that may cause a frequency bump in the mix position. A separate Dim switch is also adjustable to enable the engineer to temporarily drop the playback level without affecting the mix level settings. To address the ever-increasing popularity of ear buds, the Radial MC3 is equipped with a built-in headphone amplifier with stereo 3.5mm (1/8" TRS) output along with two standard 1/4" headphone phone outs to share. The MC3 may be configured for either balanced or unbalanced setups.


    •  Passive studio monitor switcher with headphone amp
    •  Control two sets of monitors and sub woofer
    •  Mono sum for AM radio compatibility and phase check
    •  Individual 'set & forget' controls to fine-tune levels


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  • Audio circuit type: Passive stereo signal path with active sub & HP
  • Frequency response: DC ~ 20kHz (+0dB/-1dB)
  • Common mode rejection ratio: -51dB @ 55Hz
  • Dynamic range: 114dB
  • Noise floor: Stereo: -108dBu; Sub: -95dBu; Headphone: -87dBu
  • Maximum input: +14dBu
  • Total harmonic distortion: 0.001% @ 1kHz/0dBu output
  • Inter-modulation distortion: 0.001% @ 1kHz/0dB output
  • Input impedance: 4.4k Ohms Ohms balanced / 2.2k Ohms unbalanced
  • Output impedance: Varies with level adjustment
  • TRS input: Balanced/unbalanced line-level input
  • DIM: Variable attenuation up to -72dB
  • Mute: Mutes all outputs
  • Trim: Level control for DIM, Mon-A, Mon-B and Sub outputs
  • Sub output: Full-range unbalanced output with phase reverse
  • Power: +15VDC/400mA adapter included
  • Construction: 14 gauge steel chassis & outer shell, baked enamel finish
  • Size: 3.3" x 5.0" x 2" (84 x 127 x 48mm)
  • Weight: 1.32lb (600g)
  • Shipping Size: 4.75" x 2.5" x 10.75" ( 121 x 64 x 273mm)
  • Shipping Weight: 3lb (1.3kg)
  • Warranty: Radial 3-year, transferable

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