3-Zigma SD-C Cardioid Capsule

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The CHI system is designed to be an extremely flexible platform offering a variety of capsules for the demanding engineer.

The cardioid capsule is a very typical small diaphragm capsule, probably the one used most often. Straight cardioids pattern with nice, flat frequency response with only minimal treble peak, giving a very true and neutral sound with just enough reach and directionality for most jobs. The proximity effect is totally predictable.

Below you will find the specs for this capsule when paired with a 3-Zigma head-amp.


SpecsHA-TL-II Transformerless Head AmpHA-FX Transformer-Coupled Head Amp
Acoustical operating principle: 17mm diaphragm pressure gradient transducer
Directional Pattern: Cardioid
Frequency range: 20Hz~20kHz
Sensitivity: -36dB (16mV/Pa) -38dB (12.6mV/Pa)
Output impedance: 100 ohms 200 ohms
Equivalent noise A-weighted: 13 dBA 15 dBA
S/N ratio (A-weighted, rel 1Pa): 81 dBA 79 dBA
Maximum SPL @ THD 0.5%: 140 dBA 138/146/154dB (pad on 0/-8/-16dB)
Maximum output voltage: 12 dBu 8 dBu
Dynamic range (A-weighted, THD 0.5%): 127 dB 123 dB
Supply voltage: 48 volts (P48)
Current consumption: approx. 4mA
Diameter: 22mm
Length: 19mm
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