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The new BP28 14-inch (below) and BP28L 22.4-inch Line + Gradient microphones from Audio-Technica.

Audio-Technica Debuts BP28 and BP28L Line + Gradient Large-Diaphragm Condenser Microphones

Both models, developed primarily for film and broadcast applications, have a shotgun design and are stated to provide low-noise performance with tight polar patterns.

Audio-Technica has announed the launch of new BP28 14-inch (355.6 mm) and BP28L 22.4-inch (569 mm) Line + Gradient microphones, both combining a large-diaphragm condenser element with a 28 mm diameter shotgun design stated to provide low-noise performance with tight polar patterns and a patented acoustic port design that maintains directionality across the entire frequency range.

Particularly suitable for long-distance miking for audio acquisition in film and professional broadcast applications, the BP28 and BP28L are equipped with a highly directional pickup pattern, with the BP28L’s pattern in particular quite narrow. The rugged housing is made of lightweight, structural-grade aluminum alloy.

Overview & Specifications:
— Element: Fixed-charge back plate, permanently polarized condenser
— Polar Pattern: Line + gradient
— Frequency Response: BP28: 20-19,000 Hz; BP28L: 20-20,000 Hz
— Low Frequency Roll Off: 80 Hz, 18 dB/octave
— Pad: -10 dB
— Open Circuit Sensitivity: BP28: -28 dB (39.8 mV) (0 dB=1 V/Pa, 1 kHz); BP28L: -23 dB (70.8 mV) (0 dB=1 V/Pa, 1 kHz)
Impedance: 250 ohms
— Maximum Input Sound Level: BP28: 143 dB SPL (1 kHz at 1% THD), 153 dB SPL (When pad is on.); BP28L: 138 dB SPL (1 kHz at 1% THD), 148 dB SPL (When pad is on.)
— Noise: BP28: 8 dB SPL (A-weighted); BP28L: 3 dB SPL (A-weighted)
— Dynamic Range: 135 dB (1 kHz at Max SPL)
— Signal-to-Noise Ratio: BP28: 86 dB (1 kHz at 1 Pa, A-weighted); BP28L: 91 dB (1 kHz at 1 Pa, A-weighted)
— Phantom Power Requirements: 11-52 V DC, 3.4 mA
— Switches: Low cut: on/off; Pad: on/off
— Weight: BP28: 223 g (7.9 oz); BP28L: 313 g (11 oz)
— Dimensions: BP28: 354.9 mm (14 in) long, 28 mm (1.1 in) maximum body diameter; BP28L: 567.9 mm (22.4 in) long, 28 mm (1.1 in) maximum body diameter
— Output Connector: Integral 3-pin XLR-M type
— Audio-Technica Case Style: BP28: SG6; BP28L: SG7
— Included Accessories: Windscreen (BP28: AT8170, BP28L: AT8169), holder (AT8470), stand adapter (3/8-5/8 in), carrying case


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