Superlux FMX22D 2-ch.Microphone Mixer

The Superlux FMX22D is a professional 2-channel field microphone mixer designed for video, film, and broadcast applications. It serves as a portable interface to provide high-quality preamplification and control before sending audio to a camera or recorder.

Key Features
Dual Microphones Preamps: Features two transformer-balanced XLR inputs with independent gain/level controls.
Phantom Power: Switchable +15V or +48V phantom power for each channel to support condenser microphones.
Advanced Audio Controls:
Low-Cut Filter: User-selectable (off, 80 Hz, or 160 Hz) to remove wind noise or proximity effect.
Limiter: Switchable two-stage limiter with adjustable thresholds to prevent signal distortion.
Panning: L/C/R panning controls for each input.
Calibration Tools: Includes a built-in 1 kHz test tone generator and a slate microphone for marking takes and calibrating levels with external recorders.
Monitoring: A 1/4" (6.3 mm) TRS headphone output with a dedicated volume knob and a "Tape Return" switch for monitoring the audio coming back from the camera.

Technical Specifications

Frequency Response 20 Hz – 30,000 Hz
Inputs 2 x XLR (Balanced)
Outputs 2 x XLR (Balanced), 3.5 mm Stereo Tape Out (Unbalanced)
Power Source 2 x AA batteries or external 5–17V DC power
Weight Approx. 950g (33.4 oz)
Dimensions 43 x 94 x 140 mm (1.7 x 3.7 x 5.5 inches)
Practical Usage
The FMX22D is often used by boom operators and videographers because it can be easily mounted to a flat surface or carried with the included strap. Its dual 7-segment LED meters have adjustable brightness, making them readable in bright sunlight while saving battery power in darker environments.