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3DIO Free Space XLR Binaural Microphone

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The 3Dio FS XLR Binaural Microphone is an upgraded version of the world’s most popular 3D microphone for ASMR, VR virtual reality, field recording and recording studios. Featuring two XLR outputs in addition to the 1/8" (3.5mm) stereo output, the XLR outputs are balanced to maintain a pristine audio signal for long cable runs as well and infinite use via phantom power supply. Used all over the world by hobbyists and professional recording engineers alike, 3Dio binaural microphones are a must-have for anyone looking for the best in 3D audio capturing.

What is Binaural?
Binaural is a recording technique that involves capturing sound using a stereo binaural microphone that is shaped and configured like two human ears. The 3Dio FS XLR binaural microphone is a special stereo microphone that contains two prosthetic, human-shaped ears with microphone capsules embedded inside each ear canal. Binaural microphones capture audio the same way your real ears hear sounds. Incoming sound waves are changed by the ear-shaped pinna of the microphone just like your ears would change the incoming sound waves. Our brains understand these changes as directional cues that allow us to pinpoint precise locations of any given sound. When you listen to binaural recordings using headphones, the result is a natural three-dimensional sound that gives the listener the sensation of being in the space where the audio was recorded.

How Does it work?
The FS XLR binaural microphone contains two matched, electret condenser microphone capsules embedded inside each ear canal and can be powered by the pre-installed 9V battery or phantom power via the XLR outputs. With the power switch in the ON position, the battery will last 300+ hours of continuous use (3.5mm output only). The microphone also contains a bass roll-off switch with a knee point of 160 hz (3.5mm output only).

XLR Phantom Power Output
The FS XLR includes two balanced stereo XLR outputs that require phantom power. Power the Free Space XLR using the 48V supply from your pre-amp, digital recorder or mixing console for infinite use. The Free Space XLR also includes an 1/8" (3.5 mm) stereo output that is powered by the internal 9V battery. The phantom power works regardless of the state of the 9V battery.

The Free Space XLR comes standard with a 5/8" microphone stand adapter installed in the base. The microphone stand adapter is removable. The base of the microphone has a 1/4"-20 female thread mounting hole that can be connected to a hot-shoe adapter or used to mount directly onto a tripod or grip handle.

The Free Space XLR contains a 9V alkaline battery within the chassis. The battery is used to power the microphone capsules for the 1/8" (3.5 mm) output only when the power switch is in the ON position. A brand new battery will provide 300+ hours of continuous use.

Microphone Capsules
The Free Space XLR uses matched hi-sensitivity capsules.

For more information, see the User Guide.

For examples, see our Examples Page.

Carrying Case
Every FS XLR microphone comes with a custom made, hard shell carrying case for easy transport and safe storage.

What's Included
Every Free Space XLR microphone ships with a 4.5 ft long (1.5 m) 3.5mm (1/8") TRS to dual 1/4" splitter cable. All Free Space XLR microphones include the silicone ears.

Shipping, Fulfillment & Delivery
We are a small company and strive to fulfill orders as quickly as possible. During busy times, please allow up to several business days for order fulfillment. International Shipments (delivery address outside the U.S.) may be subject to import duties, value added taxes (VAT), and long customs clearance times. Tariff rates vary from country to country. 3Dio does not collect VAT on behalf of the customer. 3Dio is not responsible for payment of import taxes. Please check with your local customs agency for rates and more information.

Dimensions: 7.5" x 4.5" x 4.5" | 190mm x 110mm x 110mm (WxHxD)
Weight: 1.66 lbs | 755g
Output: 3.5mm (1/8") stereo jack (mic level output)
Output: Two (2) 3-Pin XLR, Balanced Outputs

Mic Specifications
Directional Pattern Omnidirectional
Frequency range 60 Hz - 20kHz
Sensitivity -28±3dB at 1kHz (0dB=1V/Pa) Rl=3.9KΩ, Vcc=5V
S/N Ratio 80 dB at 1kHz
Max. SPL, peak before clipping 122 dB SPL (Typ.) at 1kHz Distortion level 3% max
Output impedance 2.4k Ω ± 30% at 1kHz (RL=3.9k Ω)
Operating Voltage 5V (3V~10V)
Microphone diameter 10 mm (0.39 in)

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