SO.3 Lav Cardioid Microphone
SO.3 Lav Cardioid Microphone
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The SO.3 Lav microphone brings rich full-bodied natural directional sound to a small form factor lavalier design. The SO.3 Lav features the same acclaimed sound as its larger siblings, the SO.3 Cardioid Microphone & SO.103 Cardioid Microphone, in a significantly smaller and even more portable package.
The SO.3 Lav is a cardioid microphone with incredibly high sensitivity, a rich full-bodied sound, and a high end characterized by a natural and airy presence. All of this packaged in a small form factor designed to be compatible with all of the Sonorous Objects Standard Series accessories. When used in near field scenarios, the SO.3 Lav provides excellent environmental noise rejection allowing you to fully focus on your subject without distraction while hearing every micro nuance and detail presented to you in the process. In further field scenarios, the SO.3 Lav captures beautifully spacious and realistic sound fields.
Our favorite applications for the SO.3 Lav are Dialog, Sound Design & Effects, Foley, and Instrument & Musical Recording. The SO.3 Lav utilizes Primo’s recommended cardioid capsule, the Primo EM423 capsule, known by recordists and sound designers for its directionality, detail, and its effortlessly natural frequency response.
The SO.3 Lav Microphone enclosure is fabricated in-house and is assembled by hand in NYC.
What's Included
(1) SO.3 Lav Microphone
(1) SO Standard Microphone Clip
(1) SO.3 Standard Attachable Foam Windscreen
*above quantity amounts will be doubled when ordering a matched stereo pair.
Features
- Exceptionally low self noise
- Wide dynamic range and frequency response for accurate sound reproduction across the audio spectrum.
-Balanced, transformerless output for increased immunity to noise over long cable runs.
- Fantastic level of detail and clarity on-axis. High level of performance at rejecting rear sounds.
- Excels in studio and controlled environments. Ideal for Sound Design/Effects, Foley, and Instrument Recording. Performs well in the field with high level of wind protection. The SO.3 Lav is sensitive and prone to wind and plosives.
- Can be used individually or as a matched pair. Stereo miking techniques yield spacious and accurate stereo fields.
- Small Form Factor
- Frequency Response Graph and Data unique to the specific capsule used in the mic that you receive.
- Industry Standard High Quality Components and Parts used. Neutrik Gold Pin Connectors/Amhpenol 3.5mm plug, Mogami Shielded Cable.
- Fabricated in house by hand in NYC.
- Designed to be compatible with all of your favorite Sonorous Objects Standard Series microphone accessories.
Specifications
Capsule | Primo EM423
Polar Pattern | Cardioid
Frequency Response | 20hz - 20khz. (Spectrograms show extended range)
Signal to Noise Ratio | 76dB
Self Noise | 16dBA
Maximum Input SPL | 125dB
Dynamic Range | 109dB
Sensitivity | -32dB (+/- 3.0dB @ 1kHz) | Stereo Pairs are matched within 0.3dB @
1kHz
Operating Voltage | 48v Phantom Power (IEC61938 Standard) OR 3.5mm Plug In Power
Enclosure | Black PLA Plastic
Dimensions | 29mm Length x 18.6mm Diameter (widest)
Polarity | Positive pressure on the diaphragm produces positive voltage on XLR Pin 2. XLR Option only.
Operating Temperature Range | -10°C ~ +50°C
Storage Temperature Range | -20°C ~ +70°C
Cable | Hardwired. Shielded, Mogami, 6 ft length terminated with a three-pin industry standard XLR male connector, Gold Plated.* OR Amphenol Mono/Stereo 3.5mm connector
SO.3 Lav Microphone Product Manual PDF
Frequency Response

Audio Recordings
*all recordings made with the SO.3 plugged into a Sound Devices Mix Pre-6 II. The recordings contain no post-processing
*any subsequent modifications to the information above will be recorded on the SO.3 Microphone Change Log in the Sonorous Objects Resource Wiki.
Be sure to check out our resource wiki for additional information, contents and downloads.
Sonorous Objects Resource Wiki





FAQ
What is the difference between the SO Standard Series and SO.100 Series microphones?
The sonic performance between the SO Standard Series and the SO.100 series is the same as both microphone product lines use the same Primo capsules in them. The difference between the two pertains to the physical size of the mics and the included/compatible accessories.
The SO.100 series is 20mm in diameter and is likely to be more compatible with more third party accessories. The SO.100 series have a typical male XLR termination and can be used with any typical XLR cable. The SO.100 series does not include any accessories.
The SO Standard Series mics are much smaller (11mm in diameter), terminate in male mini XLR, use proprietary cables (mini XLR to XLR or 3.5mm) and include some accessories (foam windscreen, alligator clip, cable type of choice (XLR or 3.5mm) We’ve designed and offer a range of accessories to be used with the SO Standard Series - Magnetic Mounts, Stereo XY/ORTF/AB array mounts etc.. The length of the included XLR cable can be extended by connecting any typical XLR cable.
Do you ship worldwide?
Yes! We ship all of our products from NYC to anywhere in the world. We currently offer shipping through USPS, UPS, and DHL couriers.
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