Audio-Technica BP350ST-UL MS Stereo On-Camera Cardioid Condenser Boundary Microphone

Shotgun Condenser M-S Stereo Microphone with 6.3" Length, Selectable Stereo Modes, Camera Mount Clip, and Power Module

Engineered for professional broadcast, production and field recording, the BP350ST-UL camera-mount microphone is perfect for ENG and other on-the-move applications. The mic features a 16 cm (6.3") interference tube that rejects off-axis noise to focus on distant sounds. It is also equipped with independent line-cardioid and figure-of-eight elements configured in an MS (mid-side) arrangement with switch-selectable internal matrixing. The mic is designed to mount securely to video cameras or support rigs, delivering lifelike stereo sound capture in dynamic recording situations.

The BP350ST-UL mid-side capsule arrangement provides crisp, clear, well-balanced stereo response, even at high SPLs. A switch on the included AT8547 power module allows users to choose between left-right stereo output (wide or narrow) and discrete mid-side signals for later manipulation. Mid-side operation offers many advantages for postproduction editing, making it easier to place voices naturally in a mix, for example, and providing audio that won't lose its depth when stereo channels are combined into a mono track. The two-mics-in-one configuration also helps reduce common problems with stereo miking, such as time alignment and comb filtering.

The mic's permanently attached 30 cm (12") cable is terminated with a TA5F connector that plugs into the power module. The included AT8495 mount clip secures the mic to the power module, attaching at any angle to accommodate placement around other peripherals. The power module can be mounted into a camera's microphone mount or secured using third-party mounts. It comes with a 36 cm (14.2") TA5F to dual-XLR3-M stereo cable that's suitable for connecting to a camera's stereo inputs or to any traditional mic preamplifier with phantom power. A switch on the power module allows users to select an 80 Hz high-pass filter to suppress unwanted ambient noise.

Features

• Innovative small-format stereo microphone with MS (mid-side) capsule configuration engineered for broadcast, production and field recording
• 16 cm (6.3") camera-mount shotgun mic is perfect for professional journalists and vloggers who favor a run-and-gun style of filmmaking
• Independent line-cardioid and figure-of-eight condenser elements
• Excellent channel separation and a natural response, even at high SPLs
• Switch-selectable internally matrixed stereo modes (wide and narrow) and mid-side mode
• Compact lightweight design
• In-line AT8547 power module is equipped with a switchable 80 Hz high-pass filter
• Includes a 36 cm (14.2") TA5F to dual-XLR3-M stereo output cable, AT8495 mount clip, AT8180 foam windscreen, and protective carrying case
• Compatible with most ATM350a mounts and mounting systems (available separately)

Specifications

• Microphones
• Element: Fixed-charge back plate, permanently polarized condenser
• Polar Pattern: Line + gradient, Figure-of-eight
• Frequency Response: 40 to 20,000 Hz
• Low Frequency Roll Off: 80 Hz, 18 dB/octave
• Open Circuit Sensitivity:
  MID: -29.5 dB (33.5 mV) (0 dB=1 V/Pa, 1 kHz)
  SIDE: -35 dB (17.8 mV) (0 dB=1 V/Pa, 1 kHz)
  L/R: -36 dB (15.9 mV) (0 dB=1 V/Pa, 1 kHz)
• Impedance: 50 ohms
• Maximum Input Sound Level:
  MID: 144 dB SPL (1 kHz at 1% THD)
  SIDE: 149.5 dB SPL (1 kHz at 1% THD)
• Dynamic Range:
  MID: 126 dB (1 kHz at Max SPL)
  SIDE: 125.5 dB (1 kHz at Max SPL)
• Signal-to-Noise Ratio:
  MID: 76 dB (1 kHz at 1 Pa, A-weighted)
  SIDE: 70 dB (1 kHz at 1 Pa, A-weighted)
  L/R: 72 dB (1 kHz at 1 Pa, A-weighted)
• Phantom Power Requirements: 48 V DC, 8.2 mA (both channels total)
• Switches: Stereo mode selection (MS, LR-W, LR-N), Flat, Low cut
  Mounted on a power module (AT8547).
• Operation Temperature Range: -10°C (14°F) to 60°C (140°F)
• Storage Temperature Range: -20°C (-4°F) to 60°C (140°F), 10% to 90% RH (without condensation)
• Weight:
  Microphone: 43 g (1.5 oz)
  Power module: 49 g (1.7 oz)
• Cable:
  Main unit cable: 0.3 m (0.98')
  Microphone cable (included): 0.36 m (1.2')
• Dimensions:
  Microphone: 159.7 mm (6.3") long, 12.7 mm (0.50") maximum body diameter
  Power module: 125 mm (4.9") long, 21 mm (0.83") diameter, 28 mm (1.1") maximum width
• Output Connector:
  Power module: 5-pin mini XLR-M type
  Microphone: 5-pin mini XLR-F type
• Accessories Included:
  Power module (AT8547)
  Windscreen (AT8180)
  Mount clip (AT8495)
  O-ring x2
  0.36 m (1.2') microphone cable
  Hard shell carry case
• Notes:
  Characteristic values measured when connected to an AT8547 power module.
  1 Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL
  For product improvement, the product is subject to modification without notice.