Audix M1250BO - Miniature Omnidirectional Condenser Microphone (Black)
The Audix M1250BO represents the pinnacle of miniaturization in professional audio without compromising sound quality. Part of the acclaimed "The Micros" series, this device is not just a microphone, but an extremely discreet, high-fidelity audio capture system. Unlike other microphones in its class that rely on bulky external power modules, the M1250BO features a preamplifier fully integrated into its tiny machined metal chassis, making it incredibly easy to set up and operate on complex stages and in studios.
This specific version, indicated by the "O" designation, is equipped with an omnidirectional polar pattern capsule. This gives it a unique ability to capture sound naturally and transparently from all directions, eliminating the "proximity effect" (the artificial bass boost when approaching the source) typical of directional microphones. The result is a faithful, airy, and spacious sonic reproduction, ideal for situations where preserving room acoustics or capturing instrument and vocal groups with striking realism is desired.
In addition to its acoustic excellence, the M1250BO is designed for the modern environment. It incorporates patented RF immunity technology, which shields the signal against electromagnetic and radio frequency interference caused by mobile phones, GSM devices, and wireless networks, ensuring clean, noise-free transmission during critical conferences or live recordings.
Main features
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Integrated Preamplifier Technology: All electronic circuitry is housed within the microphone body, eliminating the need for external power adapters in the cable.
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High Sensitivity Omnidirectional Capsule: Designed to capture the environment and sound source with a flat and natural response from 50 Hz to 19 kHz.
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RF Shielding (CommShield): Total protection against interference from wireless and cellular devices, essential for corporate events and broadcasting.
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Ultra-Miniature Design: At only 54 mm in length and a featherweight 16 grams, it is virtually invisible to cameras or the public.
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Detachable Cable: Includes a high-quality cable with a mini-XLR to standard XLR connector, making it easy to replace or install in tight cable passages.
Benefits for the user
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Clean Stage Aesthetics: Its low profile and matte black finish allow the microphone to visually disappear, keeping attention on the artist or speaker.
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Natural and "Airy" Sound: Being omnidirectional, it does not color the sound when the source moves slightly, offering a consistent and very realistic capture.
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Ease of Assembly: Thanks to its lightness, it can be hung from high ceilings for choirs or mounted on light stands without risk of sagging.
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Professional Versatility: Works equally well as an ambient microphone in a recording studio as it does as a ceiling microphone for a high-level boardroom.
Use cases
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Choir and Orchestra Capture: Placed as overhead, it captures the natural mix of the ensemble and the reverberation of the room.
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Acoustic Instruments: Ideal for piano, acoustic guitar or orchestral percussion where you want to capture the full sound of the instrument and not just a specific point.
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Room Mic: Perfect for adding depth and realism to drum or general studio recordings.
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Conferences and Round Tables: By capturing in 360 degrees, a single microphone can cover several speakers seated around a small table.
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Theater and Broadcast: Its RF immunity makes it safe for live television where multiple wireless signals are active.
Frequently Asked Questions
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Does the Audix M1250BO require phantom power?
Yes, due to its capacitor design and integrated preamplifier, it requires 18 to 52 Volt Phantom Power to function properly.
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What does it mean for it to be omnidirectional?
This means the microphone picks up sound equally from all directions (360 degrees). It's ideal for capturing the natural ambience of a room or multiple sound sources simultaneously, and it doesn't have the bass boost effect when you get very close, resulting in a very pure sound.
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Can I change the microphone capsule?
Although the M1250BO comes with the omnidirectional capsule installed from the factory, the Micros series theoretically allows for the interchange of capsules (cardioid, hypercardioid, shotgun) if purchased separately, increasing its versatility.
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What type of cable does it use?
The microphone has a 3-pin male mini-XLR connector at its base. The product typically includes a 7.6-meter (25-foot) cable that terminates in a standard male XLR connector for connecting to any mixing console or audio interface.
Project description
Miniature profile pre-polarized condenser microphone with an omnidirectional polar pattern and a preamplifier fully integrated into the chassis. Frequency response of 50 Hz to 19 kHz, output impedance of 150 ohms, and sensitivity of 11 mV/Pa @ 1kΩ. Sound pressure level (SPL) handling capacity up to 140 dB. Features radio frequency interference (RFI) and GSM immunity technology. Machined brass body with a black finish and a 3-pin mini-XLR connector. Dimensions: 12 mm in diameter by 54 mm in length, and weight of 16 grams. Requires 18-52V DC phantom power.
