For day-to-day surveillance, Azden SMX-15II is a battery-powered supercardioid shotgun microphone engineered to produce pro-quality sound for DSLRs and other space-efficient cameras. Featuring the same microphone element as Azden's professional shotguns (SGM-250 & SGM-250P), the SMX-15 is capable of capturing broadcast-quality sound, and makes possible you to focus on sound in front of the camera while reducing the capture of extraneous noise from the rest of the setting.
The SMX-15's built-in +20 dB boost feeds the camera a strong, clean signal without relying heavily on typically noisy DSLR preamps. For loud sources such as motorsport events or live concerts, a -10 dB pad helps prevent distortion.
Furthermore, the microphone has a wide frequency response of 40 Hz to 20 kHz and has a full, natural sound. There is a low-cut filter switch for reducing low frequencies below 120 Hz, which is useful for mitigating noise caused by air conditioners, wind, and traffic noise.
Powered by two AA batteries, you operates the microphone for approximately 24 hours with no degradation of sound quality. The battery-indicator LED light lets you know whenever it's time to change batteries, delivering up to a 1-hour warning beforehand.
Finally, a built-in shock-absorbing shoe mount isolates the microphone from camera-motor- and handling noise. The mount is developed to fit the standard camera shoe and comes with 1/4"-20 threads at the bottom for mounting to boom poles and other camera accessories.

Azden SMX-15II capabilities


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 footage soundtrack whenever the gain is turned up. Azden's SMX-15 has a +20 dB gain booster so you can get a strong, clean audio signal into your camera, minimizing the need to turn up the noisy preamp
Frequency Response
The SMX-15 has a wide frequency response ranging from 40 Hz to 20 kHz, so the audio you capture will sound full and natural
Power
Powered by two AA batteries, which is a lower-cost option than the 9V battery used in some competitor microphones, the SMX-15 is able to reach 24 hours of operation with a single set of batteries with absolutely no degradation of sound quality
Maximize Battery Life
Maximize battery life by through the unique "Auto" power setting. Whenever set to Auto, the SMX-15 can detect whenever a camera is on and will automatically power on and off with the camera (requires a mic source that makes available 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" setting
Integrated Shock-Absorbing Shoe Mount
Integrated into the configuration of the SMX-15 is a custom-made, shock-absorbing shoe mount to isolate the microphone from camera-motor- and handling noise
 
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Azden SMX-15II Specs

Polar Pattern Supercardioid
Frequency Response 40 Hz - 20 kHz
Sensitivity -36 dB @ 1 kHz (0 dB=1V/Pa)
Dynamic Range (Typical) 118 dB
Signal-to-Noise Ratio 82 dB, 1 kHz @ 1Pa
Maximum Input Level 128 dB SPL (1 kHz@ 1% T.H.D.)
Maximum Output Level +6.2 dB
Output Impedance 50 Ohms
Power Requirements 2 x AA batteries
Output Connectors 1/8" (3.5 mm) stereo mini plug
Power Switch Off, Battery, Auto
Gain Control -10, 0, +20 dB
Low Cut Filters Selectable @ 120 Hz, 3 dB/octave
Dimensions 1.9 x 3.9 x 5.7" (47 x 98 x 145 mm)
Weight 4.8 oz (135 g)

Key Features

  • Supercardioid Polar Pattern
  • -10, 0, and +20 dB Level Adjustment
  • 1/8" Stereo Mini-Jack Output
  • -10 dB Pad
  • Selectable @ 120 Hz Low-Cut Filter
  • Operates on Two AA Batteries
  • Low Noise & High Sensitivity
  • 40 Hz to 20 kHz Frequency Response
  • Includes Integrated Shock-Absorbing Shoe
  • Mounts to Boom Poles

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