SKU: NTSF1 Categories: , , ,


Record Everything

The NT-SF1 records the entire spherical sound field – every sound from every direction – in perfect A-Format™ audio, which can be converted to B-Format™ audio and then manipulated infinitely using the ‘Soundfield by RØDE’ plug-in. Alter the mic directivity, position, and rotation after recording; create a full 7.1.4 surround mix; create a fully head-tracked 360° soundscape for immersive video. The possibilities are, quite literally, only limited by your imagination.

The SoundField Story

The SoundField legend starts in 1978 in the UK, with the first commercial SoundField microphone launched off the back of the pioneering work of Michael Gerzon. SoundField is now the global leader in high-end ambisonic microphones, installed in many of the world’s most iconic venues. SoundField became part of RØDE/Freedman Electronics in 2016, starting the next chapter in the story.

Endless Applications, Endless Creativity

The NT-SF1 is the perfect microphone for an extremely wide range of recording applications, from recording music to capturing three-dimensional soundscapes for virtual reality and immersive media. As productions increasingly require the use of surround or multi-channel spatial reproduction and the limits of creative recording continue to be pushed, the NT-SF1 should be the next addition to every sound recordist’s arsenal.


Acoustic & Electrical Specifications

Acoustic Principle
Externally Biased Condenser

Active Electronics
JFET impedance converter with bipolar output buffer

Polar Pattern

Frequency Range
20Hz – 20kHz

Output Impedance

Equivalent Noise Level (A-Weighted)
17 dB SPL (as per IEC651)

Maximum SPL
129 dB SPL

-30.4 dB re. 1 Volt/Pascal (30mV @ 94dB SPL, 1kHz)

Power Requirements
6.2mA @ 48V (Per Channel) Phantom Power

Frequency Range
30 Hz – 20 kHz ±3dB // 20 Hz – 20 kHz ±4dB

Signal-to-Noise Ratio
77 dB

Input SPL @ 1% THD
129 dB SPL (1kHz @ 1% THD, 600Ω load)

Mechanical Specifications



Weight (g)

Dimensions (mm)
Length: 192.3
Width: 45.7
Diameter: 25.1