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SMX-15 Powered Shotgun Video Microphone

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Feature

The SMX-15 Powered Shotgun Video Microphone was engineered to produce excellent sound quality for video recorded by DSLR and other compact cameras. The microphone element is the same used by Azden’s professional shotgun microphones, the SGM-250 an SGM-250P, and is capable of capturing broadcast quality sound. The acoustically tuned slots of the shotgun barrel give the SMX-15 it’s super-cardioid polar pattern which allows you to focus on sound in front of the camera, while reducing capture of extraneous noise from the rest of the environment.

Gain Control
The audio controls on DSLR cameras are limited, if they exist at all. And DSLRs are notoriously known to have low-quality microphone preamps that add noise to the video soundtrack when the gain is turned up. That’s why Azden designed the SMX-15 with a +20dB gain booster; so you can get a strong, clean audio signal into your camera, minimizing the need to turn up the noisy preamp. Also included is a -10dB pad to protect against distortion when recording in loud environments such as live concerts and motorsport events.

Frequency Response
The SMX-15 has a wide frequency response ranging from 40Hz to 20kHz, so the audio you capture will sound full and natural. Additionally, a low-cut filter switch is included for reducing the level of low frequencies below 120Hz, which is especially useful for mitigating noise caused by air conditioners, wind and traffic.

Power
The SMX-15 is powered by two AA batteries; a lower cost option than the 9V battery that is used in some competitor microphones. The SMX-15 can achieve 24 hours of operation with a single set of batteries with absolutely no degradation of sound quality. The battery indicator LED light lets you know when it’s time to change batteries with up to a 1 hour warning.

Maximize battery life by using the unique “Auto” power setting. When set to Auto, the SMX-15 can detect when a camera is on and will automatically power on and off with the camera (requires a mic input that provides plug-in power). Ever leave your microphone on by accident to discover that the batteries are dead the next time you try to use it? Eliminate that possibility by always leaving the SMX-15 in “Auto” mode.

Integrated Shock Absorbing Shoe Mount
Integrated into the design of the SMX-15 is a custom made, shock absorbing shoe mount to isolate the microphone from camera motor and handling noise. The mount is designed to fit the standard camera shoe and comes with a ¼”-20 thread at the bottom for mounting to boom poles and other camera accessories.

Specification

Polar Pattern Super-Cardioid
Freq Resp 40Hz - 20kHz
Sensitivity -36dB @ 1kHz
Dyn Range 118dB
S/N Ratio 82dB, 1kHz@1Pa
Max Input Level 128dB SPL (1kHz@ 1% T.H.D.)
Max Output Level +6.2dBu
Output Imp 50Ω
Power Req AA batteries x2
Output Conn 3.5mm Stereo mini plug
Power Switch Off, Battery, Auto
Gain Control -10dB, 0dB, +20dB
LCF 120Hz, 3dB/octave
Dims 47mm x 98mm x 145mm
Weight 135g (approx.)
In The Box ・SMX-15 adapted shock mount mic holder
・Windscreen
・Azden sticker
・Pouch
・Manual

Technical Data