Description
The AT897 is a fixed-charge condenser microphone with a line + gradient polar pattern. It is designed for video production, broadcast (ENG/EFP) audio acquisition, wildlife recording and high-quality sound reinforcement. The microphone requires 11V to 52V phantom power or a 1.5V AA battery for operation. A battery need not be in place for phantom power operation.
The microphone's highly directional polar pattern provides a narrow acceptance angle along with crisp, intelligible audio reproduction desirable for long-distance sound pickup. The output of the microphone is a 3-pin XLRM-type connector. A switch permits choice of flat response or low-frequency roll-off (via integral 80 Hz high-pass filter) to help control undesired ambient noise. The microphone is enclosed in a rugged housing. The included AT8405a stand clamp permits mounting on any microphone stand with 5/8"-27 threads. A windscreen, two o-rings, a battery and a protective carrying case are also included.
Features
- Designed for video production and broadcast (ENG/EFP) audio acquisition
- Short length ensures mic stays out of the shot – even when used with compact digital cameras
- Provides the narrow acceptance angle desirable for long-distance sound pickup
- Smooth, natural-sounding on-axis audio quality
- Offers the convenience of battery or phantom power operation
- Rugged design and construction for reliable performance
- Switchable 80 Hz high-pass filter minimizes pickup of undesired low-frequency sounds
Specifications
POLAR PATTERN Line + gradient
FREQUENCY RESPONSE 20-20,000 Hz
LOW FREQUENCY ROLL-OFF 80 Hz, 12 dB/octave
OPEN CIRCUIT SENSITIVITY
- Phantom: -40 dB (10.0 mV) re 1V at 1 Pa
- Battery: -41 dB (8.9 mV) re 1V at 1 Pa
IMPEDANCE
- Phantom: 200 ohms
- Battery: 300 ohms
MAXIMUM INPUT SOUND LEVEL
- Phantom: 129 dB SPL, 1 kHz at 1% T.H.D.
- Battery: 115 dB SPL, 1 kHz at 1% T.H.D.
DYNAMIC RANGE (typical)
- Phantom: 112 dB, 1 kHz at Max SPL
- Battery: 98 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO 77 dB, 1 kHz at 1 Pa
PHANTOM POWER REQUIREMENTS 11-52V DC, 2 mA typical
BATTERY TYPE 1.5V AA/UM3
BATTERY CURRENT / LIFE 0.4 mA / 1200 hours typical (alkaline)
SWITCH Flat, roll-off (recessed)
WEIGHT 5.1 oz (145 g)
DIMENSIONS 10.98" (279.0 mm) long, 0.83" (21.0 mm) diameter
OUTPUT CONNECTOR Integral 3-pin XLRM-type
ACCESSORIES FURNISHED AT8405a stand clamp for 5/8"-27 threaded stands; AT8134 windscreen; battery; 5/8"-27 to 3/8"-16 threaded adapter; protective carrying case
AUDIO-TECHNICA CASE STYLES G2