Audio-Technica BP28L 22" Shotgun Line + Gradient Microphone

The Audio-Technica BP28L is a professional large-diaphragm line and gradient microphone designed for high-performance audio capture in demanding environments. This 22.4-inch shotgun microphone integrates a 28 mm diameter body with a large-diaphragm condenser element to deliver exceptional low-noise performance for broadcast, film, television, and theater applications.

Advanced Acoustic Design

The BP28L features a patented acoustic port design that ensures consistent directionality across the entire frequency spectrum. This design allows the microphone to maintain an extremely narrow, highly directional pickup pattern, making it especially suitable for long-distance miking in outdoor recording or theater sound reinforcement. The rugged housing consists of lightweight, structural-grade aluminum alloy to ensure durability during field use.

Superior Audio Performance

Equipped with transformer-coupled outputs, the BP28L produces a smooth sonic character ideal for professional film and television production. It provides a flat frequency response for accurate sound reproduction and features an exceptionally low noise floor of 3 dB. The microphone delivers extremely high sensitivity of -23 dBV, ensuring clear signal acquisition even when capturing distant sound sources.

Technical Versatility

To manage various recording scenarios, the BP28L includes integrated controls for signal optimization. A switchable 80 Hz high-pass filter reduces unwanted low-frequency noise, while a 10 dB pad allows the microphone to handle high-pressure sound sources without distortion.

Key Performance Metrics

• 135 dB Dynamic Range: Captures a wide range of sound intensities with clarity.
• 138 dB High-SPL Capability: Supports recording in loud environments without signal degradation.
• 22.4" Overall Length: Provides the necessary physical dimensions for high-gradient interference tube performance.
• 28 mm Body Diameter: Houses the large-diaphragm element to maximize sensitivity and minimize internal noise.