Audio Technica U853A Cardioid condenser hanging microphone

Maintaining the Audio-Technica tradition of clear and transparent sound quality, the U853A cardioid condenser hanging microphone is ideal for speech, theater, orchestra and choir sound reinforcement and recording. The microphone's fast transient response and low distortion characteristics allow every complex detail to be heard with all its impact-rich, vibrant qualities faithfully reproduced. Equipped with UniGuard® innovations that offer unsurpassed immunity from radio frequency interference, the U853A accepts interchangeable elements, available in cardioid, hypercardioid, omnidirectional and UniLine® line cardioid polar patterns. The battery- or phantom-powered microphone also offers an 80 Hz low-cut UniSteep® filter that reduces pickup of low-frequency ambient noise.

• Designed for suspension over choirs, instrumental groups and theater stages
• Superior off-axis rejection for maximum gain before feedback
• UniGuard® RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
• UniSteep® filter provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality
• Accepts interchangeable elements to permit angle of acceptance from 90° to 360°
• Low-profile design with low-reflectance finish for minimum visibility
• Available in two colors: black (U853A) and white (U853AW)
• Operates on battery or phantom power

• Element: Fixed-charge back plate, permanently polarized condenser
• Polar Pattern: Cardioid
• Frequency Response: 30-20,000 Hz
• Low Frequency Roll Off: 80 Hz, 18 dB/octave
• Open Circuit Sensitivity: Phantom: 42 dB (7.9 mV) re 1V at 1 Pa Battery: 43 dB (7.0 mV) re 1V at 1 Pa
• Impedance: Phantom: 200 ohms Battery: 270 ohms
• Maximum Input Sound Level: Phantom: 133 dB, 1 kHz at 1% T.H.D. Battery: 123 dB SPL, 1 kHz at 1% T.H.D.
• Dynamic Range: Phantom: 109 dB, 1 kHz at Max SPL Battery: 99 dB, 1 kHz at Max SPL
• Signal to Noise Ratio: 70 dB, 1 kHz at 1 Pa
• Phantom Power Requiremens: 11-52V DC, 2 mA typical
• Battery Type: 1.5V AA/UM3
• Battery Current Life: 0.4 mA / 1200 hours typical (alkaline)
• Switch: Off, on-flat, on-roll-off
• Cable: 25.0' (7.6 m) long (permanently attached to microphone), 0.13" (3.2 mm) diameter, 2-conductor, shielded cable with TA3F-type connector
• Accessories: AT8153 two-stage foam windscreen; AT8451 steel hanger; AT8531 power module; AT8438 5/8“-27 stand adapter; battery

• Cardioid polar pattern
• 10 m (33 ft.) cable
• 125° pickup angle
• Especially suited for choir recordings
• Integrated spring steel clamp for optimum alignment

The new CHM 99 Condenser Hanging Microphone provides both ease of use and a high level of functionality. There is hardly any more affordable and simpler solution for recording choirs at worship centers. Suspended from the ceiling or a beam, the hanging microphone is aligned and then fixed in the correct position. Now use the spring steel clamp to adjust the correct angle, and off you go!
The CHM 99 is available in white or black.

XY stereo recording

Using two CHM 99 hanging microphones in an XY configuration (coincident pair) is a good way to make stereo recordings, particularly of choirs. However, sound source locations are defined only by intensity differences. Adjusting the angle between the microphones determines the width and depth of the stereo image.

ORTF stereo recording

Developed by the French Broadcasting Authority, this technique differs from the XY technique by recording not only intensity differences, but also delay differences. The capsules are aligned at an angle of precisely 110° and 170 mm / 6.7 in. apart.

• Cardioid instrument microphone with miniature mounting bracket
• High mechanical-noise attenuation
• Including wireless direct adapter for easy use with AKG pocket transmitters
• Detachable microphone cable
• Ideal for miking up accordions and guitar, piano, keyboard, or organ amplifiers

Polar pattern    Cardioid
Frequency range    70 to 18,000 Hz
Max. SPL    125 dB (for 1% THD)
Equivalent noise level    73 dB
Impedance    =2,000 ohms
Supply voltage    9 to 52 V phantom power to IEC 61938 (DPA adapter integrated)
Powering   

• Miniature cardioid condenser clamp-on microphone with shock mounted capsule, ideal for miking drums and percussions plus brass
• For use with the B 29 L battery power supply, MPA V L phantom power adapter, or PT 40 or PT 400 transmitters (AKG WMS bodypack transmitters)
• Includes an AKG W 44 Windscreen, an AKG A 518 stabilizer knee, a 5-ft. (1.5-m) plug-in connecting cable with 3-pin mini XLR connector, an A 400 adapter for attaching a PT 40 or PT 400 bodypack transmitter and a protective case
• Integrated gooseneck
• Continuously adjustable vice type clamp
• Type: pre-polarized condenser microphone
• Polar pattern: Cardioid
• Frequency range: 60 Hz to 20,000 Hz
• Sensitivity at 1 kHz: 5 mV/Pa (-46 dBV re 1 V/Pa)
• Impedance: = 200 ohms
• Recommended load impedance: = 2000 ohms
• Max. SPL for 1%/3% THD: 130/132 dB SPL
• Equivalent noise level: 31 dB(A) to DIN 45412
• Cable length / Connector: 1.5 m (5 ft.) / 3-pin mini XLR
• Finish: Matte black
• Size (microphone only): length: 200 mm (7.9 in.), max. width: 47 mm (1.9 in.)
• Net weight (microphone and cable): C 518 M: 220 g (7.8 oz.), C 518 ML: 110 g (3.9 oz.)
• Shipping weight: C 518 M: 450 g (15.9 oz.), C 518 ML: 330 g (11.7 oz.)