U841R – Omnidirectional Condenser Boundary Microphone

The U841R delivers exceptionally intelligible audio reproduction in a super-compact, low-profile design. Equipped with UniGuard RFI-shielding technology, this omnidirectional condenser boundary microphone is designed for clear, highly intelligible sound quality in surface-mount applications. The phantom-powered U841R is equipped with self-contained electronics, eliminating the need for an external power module.

Features

• Designed for surface-mount applications where highly intelligible sound quality is required
• Small-diameter omnidirectional capsule near boundary eliminates phase distortion and delivers clear, high-output performance
• Superior off-axis rejection for maximum gain before feedback
• UniGuard RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
• Self-contained electronics eliminate need for external power module
• Heavy die-cast case and non-slip silicon foam bottom pads minimize coupling of surface vibration to the microphone
• Low-profile design with low-reflectance finish for minimum visibility

ELEMENT- Fixed-charge back plate, permanently polarized condenser
POLAR PATTERN- Omnidirectional in hemisphere above mounting surface
FREQUENCY RESPONSE- 40-20,000 Hz
LOW FREQUENCY ROLL-OFF- 80 Hz, 18 dB/octave
OPEN CIRCUIT SENSITIVITY -35 dB (17.7 mV) re 1V at 1 Pa
IMPEDANCE- 200 ohms
MAXIMUM INPUT SOUND LEVEL- 130 dB, 1 kHz at 1% T.H.D.
DYNAMIC RANGE- (typical) 105 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO- 69 dB, 1 kHz at 1 Pa
PHANTOM POWER REQUIREMENTS- 11-52V DC, 2 mA typical
WEIGHT (MICROPHONE)- 84 g (3.0 oz)
DIMENSIONS (MICROPHONE)- 65.0 mm (2.56″) diameter,
15.1 mm (0.59″) maximum height
OUTPUT CONNECTOR- TB3M-type
CABLE- 7.6 m (25.0′) long, 3.2 mm (0.13″) diameter, 2-conductor, shielded cable with TA3F-type and XLRM-type connectors
ACCESSORY FURNISHED- Soft protective pouch