X-M Specification

X-M omnidirectional condenser microphone

The X-M was discontinued in March 2011.

The X-M is an electret condenser microphone that uses a 6mm omnidirectional capsule. Due to the small size of the capsule, the X-M has an accurate sound that excels at applications such as amplified concert recording and drum overheads.

The X-M is a pressure microphone with a nearly flat frequency response on-axis. The X-M has a rising high-frequency response above 10kHz and a flat high-frequency response off-axis. The 90 degree off-axis response of the X-M is approximately 4dB less than the on-axis response at 20kHz. The X-M exhibits practically no off-axis rolloff below 10kHz.

The X-M is excellent for stereo recording. Pairs of X-Ms are matched to within 0.3dB A-weighted sensitivity and very close frequency response as well. The X-M is also designed for use as a measurement microphone. Individually purchased X-M microphones are supplied with a calibration in 1/3 octave intervals from 20Hz to 20kHz.

The X-M is designed to work with low voltage and low current power supplies as well as standard phantom power. The X-M requires a phantom power supply of +9V to +48V.

X-M Specification

Type: 6mm omnidirectional electret condenser microphone
Phantom Power: +9V to +48V (+15V minimum required for maximum SPL handling)
Current: 1.2mA
Output Impedance: 150Ω
Recommended Input Impedance: 600Ω minimum
Sensitivity, 1kHz @ 94dBSPL: -30dBV/Pa
Total Harmonic Distortion, 1kHz @ 94dBSPL: 0.1% typical
Maximum Level, 1kHz @ 1% THD: 126dBSPL
Frequency Response: 20Hz to 20kHz
Polar Response, 180°: -3dB @ 10kHz to -7dB @ 20kHz
Self-Noise: 22dBA
Weight: 2.6oz (73g)
Dimensions: 4 5/8″ x 3/4″ø (117mm x 19mmø)

X-M frequency response curve