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Description:

The SP-SPSM-21 is a high sensitivity omnidirectional stereo microphone that can be plugged directly into the powered microphone input jack of your device. The microphone is very small - measuring approximately 1 3/8" square. The mic elements are mounted on either side of the housing for good stereo separation. The cable length is one meter (39 inches). Extension cables are also available.

For loud recordings, there are several microphone power supplies designed for this microphone that will give this microphone increased dynamic range and the ability to record higher sound levels. More info on battery modules is located here.

Specifications:

- Dynamic Range: 81dB without battery module, 95dB with battery module - Signal To Noise Ratio: >62 dB, 1 kHz at 1 Pa - Frequency Response: 20 - 20,000 Hz +/- 1dB - Open Circuit Sensitivity: -35 dB (5.6 mV) re 1V at 1 Pa - Maximum Input Sound Level: 98 dB SPL, 1 kHz at 1% T.H.D. (113dB with battery module)

Features:

- Flat frequency response - Can be powered by recorder that has "plug-in-power" or a microphone power supply - Provides excellent performance Vs cost  

General Information:

The Sound Professionals single point stereo microphones are small, stereo microphones that can be plugged into any recorder (DAT, MiniDisc or analog) that supplies a bias voltage of between 1.5 and 10 Volts DC at the microphone input jack, commonly known as "plug in power". Many of the recorders on the market today include this feature.

When connected to your recorder in this manner, these microphones are perfect for recording lectures, business meetings, and musical performances when an easy to setup and use microphone is required. For situations that do require wider stereo separation, we recommend the Mini Binaurals or Mini Cardioids.

Battery modules (microphone power supplies)
In certain recording situations, you may need a separate power source for your microphones. Visit our Battery Module FAQ for more info on why you would want to use a battery module. All of the single point stereo microphones are compatible with any of our battery power modules. See the battery module page for more details.

Sound Quality
The Sound Professionals microphone systems have an extended frequency response and a very natural and accurate sound, providing deep, solid bass, smooth midrange and clean highs. They have a very wide dynamic range, and will handle very high sound pressure levels without distortion or clipping. (See details above for more info). When combined with one of the battery modules, they are designed to operate into a nominal impedance of 10K Ohms.