Integral 80 Hz HPF switch and 10 dB pad
The BP4025 is intended for use in professional applications where remote power is available. It requires 11V to 52V DC
phantom power, which may be provided by an audio mixer, or by a separate, in-line source such as the Audio-Technica AT8801 single-channel or AT8506 four-channel phantom power supplies.
Output for each stereo channel is low impedance (Lo-Z) balanced. The balanced signals appear across Pins 2 and 3
for the left channel, Pins 4 and 5 for the right channel. Pin 1 is ground (shield) for both channels. Output is “Pins 2 and 4 hot” - positive acoustic pressure produces positive voltage at Pins 2 and 4.
Locating the BP4025 nearer the sound source enhances the width of the stereo image, while decreasing room ambience.
Conversely, as the mic position moves away from the sound source, a narrower left/right stereo image results and more of the “room sound” is noted.
An integral 80 Hz high-pass filter provides easy switching from a flat frequency response to a low-end roll-off. The roll-off position reduces the pickup of low-frequency ambient noise (such as traffic, air-handling systems, etc.), room reverberation and mechanically coupled vibrations.
The BP4025 is also equipped with a switchable 10 dB pad that lowers the microphone's sensitivity, thus providing higher SPL capability for flexible use for a wide range of speakers/performers and system configurations.
The microphone is RoHS compliant–free from all substances specified in the EU directive on hazardous substances.
