$ 400.00 -13%
$ 349.99


  • Quick and easy mid/side recording without a mixer
  • Three ultra-quiet built-in mic preamps
  • Pre-mixed stereo outputs
  • Line level operation for use with pre-recorded tracks

The Radial Decoder is a microphone preamp and mid/side stereo matrix that allows the user to easily create M/S recordings without having to re-configure a recording console. Featuring built-in mic pre's with phantom power and independent level control, the Decoder automatically combines the signals to a stereo output using the sum-difference method for spectacular stereo imaging that translates well to mono for broadcast.

The Decoder begins with three ultra-quiet microphone preamps. The mic/line input-1 is assigned to the MID or direct microphone, while mic/line input-2a is assigned to the SIDE microphone. A link button automatically duplicates and pans the signal and flips the phase for a traditional M/S stereo image when used with figure-8 microphones. Mic/line input-2b allows the Decoder to be used with a pair of cardioid microphones rather than a figure-8. This opens up the door for a variety of microphones and different spacing techniques to be employed for ultimate convenience and creativity. The Decoder can also be switched to +4dBu line level for Reamping™ pre-recorded material during mix-down. Simply record a SIDE microphone while tracking and bounce to a stereo M/S image later.

As the Decoder is intended for use in the studio or in the field, the chassis is built out of heavy duty 14-gauge steel. The internal I-beam frame and book-end construction prevents premature damage to internal circuitry and protects knobs and switches from impact. A full bottom no-slip pad provides electrical insulation and mechanical isolation to reduce mishap. The chassis can also be rack- mounted on its own or with other Radial products using an optional rack kit.

The Decoder… mid/side recording has never been so easy!

Audio circuit type:  High grade Mic Preamp & Op-amp based M-S Matrix
Frequency response:  20Hz to 20kHz
Total harmonic distortion:  <0.005%
Dynamic range:  96dB
Input impedance:  10K
Mic input gain: +65dB
Line input gain: +25dB
Max output: +17dBu
Ouput impedance: 300 Ω
Equivalent input noise (EIN): <-115dBu
Noise floor: -80dBu @ 40dB of gain
Intermodulation distortion: <0.01%
Controls:  Mic/Line Gain 1, 2a & 2b
Switches:  Mic ON, HPF, Phantom Power,2a to 2b link, 2b phase invert
High pass filter:  100Hz, -12dB / octave
Construction:  14-gauge steel chassis & outer shell
Finish: Durable powder coat
Size: (W x H x D) 4.5 x 2 x 6" (114 x 57 x 147mm)
Weight:  2.8lbs (1.3Kg)
Shipping size: (L x W x D): 4.75 x 2.5 x 10.75" (121 x 64 x 273mm)
Shipping weight: 3.05lbs (1.4Kg)
Power:  15V 400mA Power Adapter 
Conditions: For use in dry locations only between 5°C and 40°C
Warranty:  Radial 3-year, transferable
Specifications are subject to change without notice.


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