Iconic Unidyne�Vocal Microphone

The 55SH Series II microphone has a cardioid (unidirectional) polar pickup pattern that minimizes sound pickup from the rear of the microphone. This allows the Model 55SH Series II to be used in close proximity to loudspeakers without creating feedback problems, and it can perform under adverse acoustic conditions where omnidirectional microphones cannot.

The 55SH Series II has a low-impedance balanced output designed for connection to microphone inputs rated at 75 to 300 ohms. The microphone features a cartridge shock mount to reduce stand noise, an On/Off switch, and an attached, self-tensioning, 5/8"-27 thread swivel mount. This microphone is ideal for public address or theater-stage sound systems, as well as for broadcasting, recording, and other sound applications where a stand-mounted microphone with a classic look is desirable.

Type
Dynamic

Frequency Response
50 to 15,000 Hz

Polar Pattern
Cardioid (unidirectional), uniform with frequency, symmetrical about axis

Impedance
Microphone rating impedance is 150 ohms (270 ohms actual) for connection to microphone inputs rated at 75 to 300 ohms

Sensitivity (at 1,000 Hz)
Open Circuit Voltage: -58.0 dBV/Pa (1.3 mV)
1 Pascal=94 dB SPL Polarity
Positive pressure on the diaphragm produces positive voltage on pin 2 relative to pin 3 of the output connector

Switch
Built-in On/Off switch, integral part of swivel mount, connector Three pin professional type, designed to mate with Cannon XL series, Switchcraft A3 (Q.G.) series, or equivalent

Case
Chrome-plated die casting

Net Weight
624 grams (22 oz)