Free Shipping!!!

The 512 headset microphone consists of the popular SM10A microphone element mounted on a lightweight headband with a single earphone. The Model 512 mic combines an efficient "open-air" headphone with a close-talking dynamic microphone. The unit is unobtrusive, durable, comfortable, and provides a wide frequency range.

Features:

• Ideal for voice recognition or communication in production environments
• Cardioid dynamic
• Frequency response: 50 to 15,000 Hz

Specifications:

• Type: Dynamic, close-talking
• Frequency Response (at 8 mm 5/16 in.): 50 to 15,000 Hz
• Polar Pattern: Cardioid (unidirectional) response ­ uniform with frequency, symmetrical about axis
• Impedance: Microphone rating impedance is 150 Ohms (200 Ohms actual) for connection to microphone inputs rated at 19 to 300 Ohms
• Output Level (closed-talked at 1,000 Hz): Open-circuit voltage: -47.0 dB (4.5 mV), 0 dB=1 volt per 100 microbars, Power Level: -66.0 dB, 0 dB=1 milliwatt per 10 microbars
• Hum Sensitivity (typical): 38.4 dB equivalent SPL in 1 millioersted field
• Polarity: Positive pressure on diaphragm produces positive voltage on red lead and pin 2 of connector

Headphone

• Type: Dynamic, open-air, left side only
• Frequency Response: 100 to 10,000 Hz, tailored for voice intelligibility (see Figure 3).
• Impedance: 300 Ohms at 1,000 Hz
• Polarity: Positive voltage on cable conductor produces positive pressure.
• Output Level (at 1,000 Hz): 94 dB SPL at ear with 1 mW input

Material

• Cable: 2.1 m (7 ft.) attached cables: one 2-conductor shielded with black 3-pin XLR connector (microphone) and one single-conductor shielded with 2-circuit phone plug (headphones).
• Headset: Stainless steel and thermoplastic with foam earpads
• Net Weight: 186 grams (6.5 oz.) including connectors