audio-technica BP28 / BP28L Line plus Gradient Large Diaphragm Condenser Microphone User Guide
- June 3, 2024
- Audio-Technica
Table of Contents
audio-technica BP28 / BP28L Line plus Gradient Large Diaphragm Condenser
Microphone
Thank you for purchasing this product. Before using the product, read through the user manual to ensure that you will use the product correctly.
Please keep this manual for future reference.
Features
- Large-diaphragm condenser element and optimized circuitry deliver exceptional low-noise performance – ideal for film/TV production and broadcasting applications
- Overall length of 354.9 mm with a highly directional pickup pattern (BP28)
- Overall length of 567.9 mm with an extremely narrow, highly directional pickup pattern (BP28L)
- Transformer-coupled output provides smooth sonic character
- Extremely high sensitivity (BP28: -28 dBV / BP28L: -23 dBV), wide dynamic range (135 dB), and high-SPL capability (BP28: 143 dB / BP28L: 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
Notes on use
The BP28 and BP28L require 11V to 52V phantom power for operation, which may
be provided by a mixer or console, or by a separate, in-line source such as
the
Audio-Technica AT8801 single-channel or AT8506 four-channel phantom power
supplies.
Avoid leaving the microphone in the open sun or in areas where temperatures
exceed 43°C for extended periods. Extremely high humidity should also be
avoided.
Safety precaution
Although this product was designed to be used safely, failing to use it correctly may result in an accident. To ensure safety, observe all warnings and cautions while using the product.
Cautions for the product
- Do not subject the product to strong impact to avoid malfunction.
- Do not disassemble, modify or attempt to repair the product.
- Do not handle the product with wet hands to avoid electric shock or injury.
- Do not store the product under direct sunlight, near heating devices or in a hot, humid or dusty place.
Connection procedure
Connect the output terminals of the microphone to a device that has a
microphone input (balanced input) compatible with a phantom power supply. The
output connector is an XLRM-type with polarity as shown in the figure below
.
Specifications
ï 1 Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL
For product improvement, the product is sublect to modification without notice.
Polar pattern
Frequency response
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