Sennheiser-quality Japanese microphone manufacturer specializing in ultra-directional interference tube microphones. The CS-3e flagship isolates dialogue at 3m distance, dominant in Hollywood production for 25+ years.
Technical Details
Sanken microphones utilize line+gradient technology with interference tubes measuring between 416-600mm in length. The flagship CS-3e achieves a directional pattern of ±30° at 1kHz and features a frequency response of 50Hz-20kHz with ±2dB linearity. Its self-noise level is 15dB(A) SPL, with a maximum sound pressure level handling of 130dB SPL. Typical models like the CS-M1 (short, 280mm) or CS-1e (long, 550mm) operate with 48V phantom power and deliver 50mV/Pa sensitivity at 200Ω output impedance.
History & Development
In 1963, Sanken introduced the first professional shotgun microphone, the CS-1, which immediately impressed Hollywood studios with its extreme directivity. In 1987, the legendary CS-1e followed, featuring improved HF linearity. The breakthrough came in 1995 with the CS-3e, which improved side sound attenuation by 15dB through an asymmetrical slot arrangement. In 2019, Sanken launched the COS series with interchangeable interference tube modules for variable characteristics.
Practical Use in Film
The Sanken CS-3e has dominated Hollywood productions for 25 years, from "The Matrix" to "Dune," as it cleanly isolates dialogue even at a distance of 3m from the actor. Sound mixers use the CS-1e for tight interiors and the CS-M1 for discreet placement in vehicles. Its extreme side rejection allows for recording parallel to camera pans without monitoring feedback. Downsides: High wind sensitivity requires elaborate windshield systems; the proximity effect below 50cm boosts bass frequencies by 6dB.
Comparison & Alternatives
Sanken differs from the Sennheiser MKH series through its more aggressive directional pattern at lower robustness. The Schoeps CMIT series offers a more natural sound but less spatial separation. The Audio-Technica AT8035 costs 80% less but achieves only half the directivity. Modern alternatives like the Deity S-Mic 2S copy Sanken's geometry with digital signal processing but do not achieve the analog precision of the Japanese reference.