The Sennheiser MKH 418S professional stereo shotgun microphone incorporates the Mid / Side (M/S) technique, yielding a high degree of directivity and focus while reproducing signals with extreme accuracy to their perspective placement, within the Left / Right Stereo field.
The MKH 418S features 2 independent acoustic systems for generating the mid and side signals. The mid (M), or mono signal is generated using an internal shotgun microphone. The shotgun accurately reproduces audio with extreme focus, emphasizing pick up of signals at the direct-axis section (front). The shotgun also rejects signal at the off-axis sections (sides) of the microphone, minimizing noise and further strengthening the pick up area. The Side (S), or stereo signal is generated using a separate, internal microphone system that features a figure-of-eight polar pattern. This system is responsible for reproducing the spacial character needed for accurate placement of signal within the stereo field.
The output features a 5-pin XLR male connection, capable of sending the separate signals of each internal microphone system to discrete channels of a console, field mixer, recorder or matrixing system. Each internal microphone requires +48V phantom power, supplied via two Sennheiser MZA 14 P48 battery power supply units, or any mixer capable of supplying at least 2 discrete channels of phantom power.
Transducer
M: Pressure gradient / interference tube receiver
S: Pressure gradient receiver
Polar Pattern
M: Super-cardioid / lobar
S: Figure-of-eight
Frequency Response
40Hz to 20kHz
Dynamic Range (Typical)
not specified by manufacturer
Signal-to-Noise Ratio
Equivalent Noise Level
M: 14dB-A / 26dB-CCIR S: 22dB-A / 34dB-CCIR
Maximum Input Sound Level
130dB SPL (63 Pa)
Power Requirements
+48V +/- 4V / 2 x 2.3 mA
Output Impedance
< 25 ohms (@ 1000 Hz)
Min. Load Impedance: 1k Ohms
Output Connectors
5-pin XLR, male
Pad
No
Low Frequency Roll-Off
No
Dimensions
280 x 19mm (11.02 x .75") (Length x Diameter)
Weight
.77 oz (220 g)
Sennheiser MKH418-S Stereo Shotgun Microphone
1 MKH 418 S
