Neumann BCM 705 Dynamic Broadcast Microphone


Core Features & Design

  • Hypercardioid pattern provides excellent off‑axis rejection, minimizing background noise. Additionally, internal elastic suspension and pop-screen dampening reduce rumble and plosives.
  • Built-in pop filter plus a removable bayonet‑mount head grille makes cleaning and maintaining hygiene easy—great for shared studio environments.
  • Gentle low‑shelf roll‑off (around 150–250 Hz) reduces proximity bass buildup, while a mid‑to‑high presence boost (2 kHz to 9 kHz) enhances speech clarity without sounding harsh.
  • ~1.7 mV/Pa (–55.4 dB ±1 dB), with a rated impedance of 200 Ω (requires a strong clean preamp)
  • Equivalent noise level ~18 dB‑A; SNR around 76 dB‑A. Capable of handling SPLs up to 150 dB without distortion.
  • Measures approximately 85 mm in length, 64 mm in diameter, and weighs ≈500 g; height including suspension around 110 mm.

 200,000

The Neumann BCM 705 is a high-end, professional dynamic microphone specifically designed for broadcast, podcasting, and voiceover applications. It is part of Neumann’s broadcast microphone series and is known for its exceptional build quality, classic design, and tailored sound profile.

 

Key Features and Highlights:

  • Dynamic Capsule: Unlike condenser microphones, the BCM 705 uses a dynamic capsule. This means it doesn’t require phantom power to operate and is highly durable, making it ideal for the demanding environment of a radio or podcast studio. Dynamic microphones are also less sensitive to room acoustics and background noise.
  • Hypercardioid Polar Pattern: The BCM 705 has a very tight hypercardioid pickup pattern. This is a critical feature for broadcast use as it focuses on the speaker’s voice while effectively rejecting off-axis sounds, like noise from co-hosts, air conditioning, or computers.
  • Tailored Frequency Response: The microphone’s frequency response is specifically voiced for the human voice. It has a gentle presence boost above 2 kHz to enhance speech intelligibility and a soft bass roll-off to compensate for the “proximity effect,” which is the unnatural build-up of bass when speaking close to the mic.
  • Integrated Protection: The BCM 705 has a built-in pop filter and an elastic capsule suspension. The pop filter helps to prevent plosive sounds (“p,” “b,” “t”) from distorting the audio, while the internal suspension isolates the capsule from structure-borne noise and vibrations from the mic arm or desk.
  • Distinctive Design: The microphone has the same iconic, streamlined design as its condenser counterpart, the BCM 104. The head grille can be easily removed for cleaning, and individual grilles can be used for different speakers to maintain hygiene in a shared studio environment.
  • High SPL Handling: As a dynamic microphone, the BCM 705 can handle very high sound pressure levels (SPLs) without distortion, making it suitable for loud vocals or even certain instruments, although its primary purpose is for speech.
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