Product Description
Audio-Technica BP28L Line + Gradient Large-Diaphragm Condenser Shotgun Microphone (22.4" Length)
Key Features
- For Broadcast, Theater, TV, and Film
- Extremely Directional, Very Low Noise
- 28mm Diameter, 22.4" Length
- Line + Gradient Polar Pattern
- Highly Sensitive with up to 148 dB SPL
- Flat Frequency Response
- Lightweight Aluminum Housing
- Switchable 80 Hz High-Pass Filter
- 10 dB Pad Switch
- Works with +48V Phantom Power
Overview
The BP28L from Audio-Technica is a 22.4" shotgun microphone that combines the directional characteristics of shotgun microphones with a highly sensitive, large-diaphragm condenser mic capsule that delivers accurate and natural sounding speech and dialog. The BP28L's very high directivity, low noise, and transparent audio reproduction make it well suited to broadcast, video, feature film, and theater applications.
The BP28L sports a 28mm diameter body to accommodate the large capsule and uses a lengthy interference tube to deliver extremely narrow audio capture focused on the subject at the end of the barrel. In addition, the mic incorporates a directional (gradient) element into the tube to further reduce pickup from the rear. Lightweight, yet durable, aluminum housing means the mic is still relatively easy to position and handle on a boom during active productions.
Features at a Glance
- Large-diaphragm microphone capsule provides extremely high sensitivity (-23 dBV), wide dynamic range (135 dB), and high-SPL capability (148 dB, with pad engaged) for studio-quality results and highly accurate, natural-sounding speech and vocals with a very low noise floor
- 22.4" length provides an extremely directional pickup pattern
- Patented acoustic port design maintains directionality across the entire frequency range
- Switchable 80 Hz high-pass filter & 10 dB pad
- Transformer-coupled output provides a smooth sonic character
- Rugged housing made of lightweight structural-grade aluminum alloy
Specifications
Primary Applications | Broadcast, Audio for Video, Location Sound |
Form Factor | Shotgun Mic / Stand/Boom Mount |
Intended Sound Sources | Vocals, Speech/Voice Over |
Sound Field | Mono |
Operating Principle | Line Gradient |
Capsule | Condenser |
Polar Pattern | Lobar, Supercardioid |
Orientation | End Address |
Circuitry | Solid-State |
Pad | -10 dB |
High-Pass Filter | 80 Hz, 18 dB/Octave |
Gain Adjustment | None |
Indicators | None |
On-Board Controls | High-Pass Filter, Pad |
Windscreen | Foam (Included) |
Frequency Range | 20 Hz to 20 kHz |
Maximum SPL | 138 dB SPL 148 dB SPL (with Pad) |
Impedance | 250 Ohms |
Sensitivity | -23 dB |
Dynamic Range | 135 dB |
Signal-to-Noise Ratio | 91 dB A-Weighted (1 kHz) |
Equivalent Noise Level | 3 dB A-Weighted |
THD | 1% |
Output Connectors (Analog) | 1 x XLR 3-Pin Male (on Mic) |
Headphone Connector | None |
Operating Voltage | 11 to 52 V |
Operating Current Consumption | 3.4 mA |