BP350ST-UB

Mid-Side Stereo Capture
Independent cardioid and figure-of-eight elements provide natural stereo imaging and clear channel separation.

Selectable Output Modes
Choose wide stereo, narrow stereo or discrete mid-side output to suit recording and postproduction needs.

High-SPL Performance
Maintains a crisp, balanced response when recording loud sound sources.

Flexible Placement
The included boundary housing, gooseneck and universal clip-on mount support discreet positioning in varied locations.

Secure Boundary Mounting
A magnetic base and screw-mounting holes provide dependable installation on compatible surfaces.

Ambient Noise Control
A switchable high-pass filter helps suppress low-frequency background noise.

Broad Mount Compatibility
Works with ATM350a mounts and mounting systems for additional placement options.

Professional Connectivity
The included stereo output cable connects the power module to conventional phantom-powered microphone preamplifiers.

Compact Construction
The lightweight microphone body supports close placement without obstructing the recording area.

Interchangeable Pickup Options
Optional elements support more directional pickup patterns for specialized applications.

General Specifications
Device Type: MS stereo condenser microphone
Element: Fixed-charge back plate, permanently polarized condenser
Polar Patterns: Cardioid, figure-of-eight
Frequency Response: 40 Hz to 20,000 Hz
Impedance: 50 ohms

Filter and Controls
Low-Frequency Roll-Off: 80 Hz, 18 dB/octave
Stereo Modes: MS, LR-W, LR-N
Filter Settings: Flat, low cut
Control Location: AT8547 power module

Sensitivity
Mid Sensitivity: -33.5 dB, 21.1 mV, 0 dB = 1 V/Pa at 1 kHz
Side Sensitivity: -35 dB, 17.8 mV, 0 dB = 1 V/Pa at 1 kHz
Left/Right Sensitivity: -39.5 dB, 10.6 mV, 0 dB = 1 V/Pa at 1 kHz

Acoustic Performance
Maximum Input Level, Mid: 148 dB SPL at 1 kHz, 1% THD
Maximum Input Level, Side: 149.5 dB SPL at 1 kHz, 1% THD
Dynamic Range, Mid: 126 dB at 1 kHz and maximum SPL
Dynamic Range, Side: 125.5 dB at 1 kHz and maximum SPL
Signal-to-Noise Ratio, Mid: 72 dB at 1 kHz, 1 Pa, A-weighted
Signal-to-Noise Ratio, Side: 70 dB at 1 kHz, 1 Pa, A-weighted
Signal-to-Noise Ratio, Left/Right: 69 dB at 1 kHz, 1 Pa, A-weighted

Power Requirements
Phantom Power: 48 V DC
Current Consumption: 8.2 mA, both channels total

Environmental
Operating Temperature: -10°C to 60°C (14°F to 140°F)
Storage Temperature: -20°C to 60°C (-4°F to 140°F)
Storage Humidity: 10% to 90% RH, non-condensing

Dimensions and Weight
Microphone Length: 37.8 mm (1.5 in)
Microphone Body Diameter: 12.7 mm (0.50 in) maximum
Microphone Weight: 17 g (0.60 oz)
Power Module Length: 125 mm (4.9 in)
Power Module Diameter: 21 mm (0.83 in)
Power Module Maximum Width: 28 mm (1.1 in)
Power Module Weight: 49 g (1.7 oz)
Boundary Housing Weight: 87 g (3.1 oz)
Gooseneck Length: 127 mm (5 in)

Cables and Connections
Attached Microphone Cable: 7.6 m (25 ft)
Stereo Output Cable: 0.36 m (1.2 ft)
Microphone Connector: 5-pin mini XLR-F
Power Module Connector: 5-pin mini XLR-M
Stereo Output Connectors: Dual XLR3-M
Universal Mount Thread: 1/4-20

Optional Elements
Hypercardioid Element: UE-H
Line and Gradient Element: UE-UL
Compatible Windscreen for UE-UL: AT8180
Mount Compatibility: ATM350a mounts and mounting systems

Included Accessories
Power Module: AT8547
Boundary Housing: AT8494
Gooseneck: AT8490
Universal Clip-On Mount: AT8491UC
Foam Windscreen: AT8418
Stereo Output Cable: TA5F to dual XLR3-M
Carrying Case: Hard shell