WH20TQG Cardioid Headworn Dynamic Microphone with 4-Pin Mini Connector (TA4F), Shure

Shure WH20TQG Cardioid Headworn Dynamic Microphone with 4-Pin Mini Connector (TA4F)

The Shure Model WH20 is a rugged, lightweight, dynamic headset microphone that provides high-quality voice pickup. It fits securely for active microphone users, such as aerobics instructors and musicians, with low visibility for stage appearances. The WH20 is suitable for any voice communications application where comfort and reliability are required.

The WH20 has a cardioid (unidirectional) pickup pattern. This provides greater gain-before-feedback and isolation from ambient noise and other unwanted sound sources, such as air-conditioning, musical instruments and loudspeakers. A carefully shaped frequency response includes a voice-frequency presence peak and a low-frequency rolloff to compensate for the proximity effect inherent in cardioid microphones during close-talk operation.

An integrated elastic CROAKIES headband secures the headset comfortably. The headband, wireframe,and gooseneck are adjustable to accommodate any head size or shape. The WH20 is supplied with a foam windscreen and clothing clip.

WH20TQG Specifications
Type: Dynamic, Close-Talking

Frequency Response (at 8 mm [5/16 in.]): 50 to 15,000 Hz (see Figure 2)

Polar Pattern: Cardioid (unidirectional) response�uniform with frequency, symmetrical about axis (see Figure 3)

Impedance: Microphone rating impedance is 150 ohms (200 ohms actual)

Output Level (close-talked* at 1,000 Hz)

Open Circuit Voltage �67.0 db/Pa (0.45 mV) (1 Pa = 94 dB SPL)

At 12.5 mm (1/2 inch).
Hum Sensitivity: 38.4 dB equivalent SPL in a 1 millioersted field

Polarity: WH20QTR as a wired microphone: Positive sound pressure on diaphragm produces positive voltage on tip with respect to sleeve (ground) of microphone output phone plug connector.

WH20QTR, WH20TQG used with Shure Wireless Systems:
1/4-inch Phone Jack Receiver Outputs: Positive sound pressure on diaphragm produces positive voltage on tip of receiver output connector.

Environmental Conditions
Operating Temperatures: �18� to 60�C (0� to 140�F)
Storage Temperatures: �29� to 74�C (�20� to 165�F)
Humidity: 0 to 95%
Cable: Attached 1.22 m (4 ft), small-diameter, shielded, PVC-jacketed, two-conductor.
Cable Connector: WH20TQG: Female Switchcraft Tini �QG� (TA4F)

Construction
Black thermoplastic housing; stainless steel grille; black TEFLON-coated stainless steel wireframe; flexible plastic-clad monel gooseneck; rubber/nylon elastic headband
Net Weight (including connector)
WH20TQG: 64 g (2.2 oz)