Excellent choice for stereo applications
Keep in mind that a stereo mic is specialized equipment. Use it for what it was designed for and you will be very happy with this mic. I personally would NOT use this for drum OH. The capsules are fixed and for drum OH, I want the ability to position each mic individually.
OK – let me start off with the bad. For a large condenser, it has that mid-line AudioTechnia rather flat, almost "canned" tonality. Also, the way the capsules are spaced, you need to be a 3 or more feet back from the mic to capture a stereo image. Really, you should expect that on any single point stereo mic.
The Good: It’s small and it’s lightweight – light enough to use on a fishpole for video. Extremely low self noise (especially at this price). The included stereo cable is long (almost too long for film use) and if you need longer, just use a couple XLR cables as extensions.
Excellent (as in truly excellent) stereo field – when listening to the playback through my Grados, more than once I looked over my shoulder to see who was in the room with me – there was no one there, it was someone walking around the room during the recording. Yeah, it sounds that real....I suppose that says it all. I was impressed.
For choirs, you will be amazed that a $600 mic does this good of a job. For film and video ambient (room tone) you will be equally impressed. If you want the convenience of a single point stereo mic for under a grand, the BP4025 is the ticket.
I didn’t give it 5 stars because the only mic that has “blown me away” in the last two years was a custom titanium capsule mounted in a $14,000 (not a typo) Telefunken.
Shock-mount is highly recommended.