AEA R84A Active Phantom Power Classic Big Ribbon Microphone

The AEA R84A is a pill-shaped, side-address, phantom powered ribbon microphone with a bidirectional pickup pattern. It is Designed to accommodate distant and medium miking duties.
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AEAR84A

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    The R84A is intimate, warm and detailed, yet never harsh. The R84A is a pill-shaped, side-address, ribbon microphones with a bidirectional pickup pattern. The R84A is assembled with the same Big Ribbon™ tuning (16.5 Hz) as the AEA/ RCA R44 and share many of the unique sound characteristics with their historic predecessor. Designed to accommodate distant and medium miking duties, they exhibit a flat frequency response when placed 3 feet (1 meter) away from the source. As a result, the mic performs well on a variety of recording applications including vocals, brass, strings, woodwinds, guitars, and drums. R84 series microphones continue to gain followers with their natural sound, articulate midrange and forgiving nature. Whether used on vocals or instruments, their performance is intimate, warm and detailed, yet never harsh.


    The R84A needs a standard 48V phantom-power source to operate, but ensure that phantom power is disengaged before plugging and unplugging the microphone. The loud 'pops' that occur when the microphone is plugged in with phantom power engaged can damage speakers, headphones, and ears. The phantom current draw for active AEA ribbon mics is 7 milliamps. IEC specifies P48 power which should be able to deliver 10 milliamps per input. Some USB and battery-powered audio interfaces will not deliver this. Please check the current values available on your unit to ensure the best performance.


    Note: The phantom-powered R84A was previously known as the A840


    AEA R84A Active Phantom Power Classic Big Ribbon Microphone Features:

    • Standard 48V phantom-power source to operate
    • Ribbon microphone with a bidirectional pickup pattern
    • Performs well on a variety of recording applications including vocals, brass, strings, woodwinds, guitars, and drums
    • Intimate, warm and detailed, yet never harsh
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    AEA R84A Active Phantom Power Classic Big Ribbon Microphone Specifications

    AEA R84A Active Phantom Power Classic Big Ribbon Microphone Specifications
    Product Specifications

    AEA R84A Active Phantom Power Classic Big Ribbon Microphone Specifications

    • Operating Principle: Pressure gradient transducer
    • Directional Pattern: Bidirectional
    • Frequency Range: <20 Hz to >20 kHz
    • Polarity: Pin 2 high for positive pressure on front of microphone
    • Polar Response: Native bidirectional, figure-of-8 pattern
    • Horizontal: Up to 90 dB rejection at right angles to the front/back axis.
    • Vertical: Level changes with angle of incidence, but frequency response is consistent.
    • Transducer Element Material: Pure aluminum corrugated ribbon
    • Thickness: 1.8 µm
    • Width: 0.185" (4.7 mm)
    • Length: 2.35" (59.7 mm)
    • Microphone Dimensions:
      • Height: 11.6" (29.5 cm)
      • width: 3.9" (9.9 cm)
      • Depth: 2.5" (6.4 cm)
    • Weight with cable: 3 lb (1.36 kg)
    • Shipping Weight: 4 lb (1.8 kg)
    • Connector: XLR-3M
    • Maximum SPL: 141 + dB SPL (1% third harmonic > 1 kHz)
    • Sensitivity: 6.3 mV/Pa (-44 dBv/Pa) into unloaded circuit
    • Output Impedance Recommended Load: 92 Ω broadband
    • Impedance: 1.0K Ω or greater
    • Phantom Power: P48 phantom power, 7 mA
    • Accessories Included: Softcase, user manual, captive 10” (3 meter) output cable with XLR-3M connector.
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