Electro-Voice RE520-RC3 Supercardioid Condenser Microphone Headworn for Wireless Transmitters (1.25″-28 Thread, TA 3-Ring/3-Pin)

Electro-Voice RE520-RC3 Supercardioid Condenser Microphone Headworn for Wireless Transmitters (1.25″-28 Thread, TA 3-Ring/3-Pin)

The Electro-Voice RE520-RC3 is a threaded microphone head with a supercardioid pattern , condenser (autopol electret) capsule, designed to mount on handheld wireless transmitters using the 1.25″ diameter coupling convention , 28 UN-2A pitch, and 3-ring / 3-pin contacts. It delivers detailed, full, and clear sound with tight bass, present mids, and open highs, while effectively controlling off-axis sound to gain headroom before feedback.

It features a switchable high-pass filter (flat / HPF ~150 Hz ) to reduce handling, wind, and stage rumble, plus a multi-stage pop filter and internal suspension to minimize plosives and handling noise. Its aluminum and steel construction with a black polyurethane finish ensures durability at a low weight of 130 g . It is powered by the transmitter itself (bias 4–8 V DC ).

Main features

• Condenser capsule (autopol electret) with supercardioid pattern for greater acoustic isolation and feedback control.
• Standard 1.25″-28 UN-2A thread and 3-ring/3-pin contact : compatible with Electro-Voice handheld transmitters and others using this convention.
• Selectable high-pass filter (≈150 Hz) + multi-stage pop filter and internal damping against handling noise.
• Extended frequency response from 40 Hz to 20 kHz , sensitivity 5.6 mV/Pa and max SPL 139 dB (1% THD) .
• Adjustable sleeve design (floating ID collar) to align the mark with the transmitter body when tightened.

Product benefits

• Superior vocal clarity with a modern, articulate timbre typical of condenser capsules.
• Greater gain before feedback thanks to the supercardioid pattern and off-axis control.
• Versatility of integration into multiple transmitters compatible with the 1.25″-28 / 3-ring standard.
• Less unwanted noise thanks to its switchable HPF, pop filter and internal suspension.

Use cases

• Live lead vocals and backing vocals (pop, rock, gospel, musical theatre).
• Presenters and masters of ceremonies who require a handheld with high intelligibility.
• Corporate production and broadcasting in high sound pressure settings.

Frequently Asked Questions

• Is it dynamic? No. It is an electret condenser and receives bias ( 4–8 V DC ) from the handheld transmitter.
• What transmitters is it compatible with? Electro-Voice handhelds (e.g., RE3-HHT) and other models that use a 1.25″-28 thread with 3 rings/3 pins .
• What's the high-pass filter used for? It reduces bass from handling/rumble and improves voice clarity in noisy environments.

Description for projects

Threaded microphone head with supercardioid condenser capsule. Response 40 Hz–20 kHz ; sensitivity 5.6 mV/Pa (−45 dBV/Pa) ; max. SPL 139 dB (1 % THD); self-noise 22 dB SPL(A) ; dynamic range 117 dB ; SNR 72 dB ; impedance 1000 Ω ; power 4–8 V DC from transmitter. Coupling: 1.25″-28 UN-2A ; contact 3-ring/3-pin . Dimensions: 85.3 mm (length) × 49.6 mm (diameter). Weight: 130 g . Switchable high-pass filter (~150 Hz), multi-stage pop filter and internal suspension. Materials: aluminum and steel; black polyurethane finish.