divider-line Line + Gradient Large Diaphragm Condenser Microphone


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Line + Gradient Large Diaphragm Condenser Microphone


Audio-Technica combines exceptionally low-noise large-diaphragm condenser elements with a shotgun design for extremely tight polar patterns, perfect for long-range sound recordings. With a length of 56.8 cm, the directional BP28L shotgun microphones have been specially designed to meet the needs of broadcast, film, television, recording outdoors and theater applications. Particularly suitable for long-distance sound recording in filmmaking or in theatre, the BP28L have a very low noise level (3 dB), and a transformer-coupled output results in a smooth sonic character. The microphone provide extremely high sensitivity (-23 dBV), wide dynamic range (135 dB) and high-SPL capability (138 dB). The patented acoustic port design maintains directionality across the entire frequency range.

  • Large-diaphragm condenser element and optimized circuitry deliver exceptional low-noise performance – ideal for film/TV production and broadcasting applications
  • Overall length of 567.9 mm with an extremely narrow, highly directional pickup pattern
  • Transformer-coupled output provides smooth sonic character
  • Extremely high sensitivity (-23 dBV), wide dynamic range (135 dB), and high-SPL capability (138 dB)
  • Flat frequency response for accurate sound reproduction
  • Rugged housing made of lightweight, structural-grade aluminum alloy
  • Switchable 80 Hz high-pass filter and 10 dB pad
  • Patented acoustic port design maintains directionality across the entire frequency range


Element Fixed-charge back plate, permanently polarized condenser
Polair patroon Line directional
Frequentierespons 20-20,000 Hz
Lage frequentie roll-off 80 Hz, 18 dB/octave
Gevoeligheid open circuit -23 dB(70.8 mV) (0 dB=1 V/Pa, 1 kHz)
Maximaal geluidingangsniveau 138 dB SPL (1 kHz at 1% THD), 148 dB SPL (When pad is on.)
Ruis 3 dB SPL (A-weighted)
Dynamisch bereik 135 dB (1 kHz at Max SPL)
Signaal-ruisverhouding 91 dB (1 kHz at 1 Pa, A-weighted)
Vereisten fantoomvoeding 11- 52 V DC, 3.4 mA
Schakelaars Low cut: on/off, Pad: on/off
Gewicht 313 g
Afmetingen 567.9 mm long, 28.0 mm maximum body diameter
Uitgangsconnector Integral 3-pin XLR-M type
Meegeleverde accessoires Windscreen (AT8169), holder (AT8470), stand adapter (3/8”-5/8”), carry case
Audio-Technica casetype SG7