Menu Close

MS-BOUNDARY-OMNI-PRO – Ultra high-gain Boundary microphone

Brand: Master Series by Sound Professionals


Professional Omnidirectional boundary microphone with ultra-high sensitivity, ultra-high gain, low-noise mic element and premium double-shielded cable, 10 foot cable length.

SP-SPSC-9-72 - 3.5mm extension cable - 72" long

Mono/Stereo/TRRS gold plated right angle 3.5mm (1/8 inch) extension cable - 72 inches long

SP-SPSC-11-12 - 3.5mm extension cable – 12 feet long

Mono/Stereo gold plated 3.5mm (1/8 inch) extension cable - 12 feet long

SP-SPSC-11-25 - 3.5mm extension cable – 25 feet long

Mono/Stereo gold plated 3.5mm (1/8 inch) extension cable - 25 feet long

SP-SPSC-11-50 - 3.5mm shielded cable – 50 feet long

Mono/Stereo gold plated 3.5mm (1/8 inch) extension cable - 50 feet long


The Sound Professionals Boundary microphone is our very best microphone for Courtrooms, Depositions, Meetings and Lecture recordings and is hand-crafted in the USA. This ultra-high sensitivity microphone offers premium sound quality. This microphone will work with all Steno writers, Andrea USB soundcards and audio recorders that provide ‘plug in power’ between 2 and 12 Volts DC at the microphone input jack. Plugged into a USB microphone, it will extend the USB mic range and is perfect for picking up sidebar conferences, etc.

This microphone is also perfect for recording lectures, business meetings, interviews, etc. The microphone element is omnidirectional, so it picks up sound in all directions equally. This microphone has an ultra-high sensitivity mic element for recording sounds ranging from extremely quiet to moderately loud sounds. It has a S/N ratio of 80dB for super low noise (hiss) and -24dB ultra-high sensitivity. It has a range of approximately 125 feet (depending on conditions).

Sound Quality
The microphone has an extended frequency response and very natural and accurate sound, providing deep, solid bass, smooth midrange and clean highs.


  • Flat frequency response
  • Can be used directly with any device that provides 2-12vdc plug in power
  • Weighs only 2.5 ounces
  • Cable length 10 feet (extension cables are available)


  • Pickup Pattern: Omnidirectional
  • Frequency Range: 20 Hz – 20,000 Hz +/-1dB
  • Sensitivity: -24dB ±3dB @ 94dB SPL
  • S/N Ratio: 80dB
  • Maximum SPL at 12vdc: 120dB
  • Dynamic Range: 132dB, 1 kHz at Max SPL
  • Impedance: 2.2 kOhms
  • Voltage range – 2vdc – 12vdc (48v on XLR version)
  • Current draw: 500 µA
  • Cable length: 10 feet (extension cables are also available, if needed)
Weight 0.8 lbs


There are no reviews yet.

Be the first to review “MS-BOUNDARY-OMNI-PRO – Ultra high-gain Boundary microphone”
Wishlist 0
Continue Shopping