AEA KU5A

AEA KU5A is an active ribbon microphone with a supercardioid polar pattern, designed for studio and live applications where high rejection and classic ribbon tonality are essential. It allows singers and instrumentalists to perform up close, thanks to its durable ribbon element and active electronics making it compatible with a wide range of preamps.

The KU5A features a front-address design, active circuitry powered by 48 V phantom, 92 Ω output impedance, and a switchable high-pass filter at 283 Hz to reduce proximity effect. With frequency response extending below 20 Hz up to >20 kHz, and a maximum SPL of 135 dB+, it handles loud sources with ease. The internal design prioritizes rejection of off-axis sound (up to about 135° null-point) and is built for rugged duty in both studio and stage environments.

KEY FEATURES

• Active ribbon microphone with supercardioid polar pattern
• Front-address design suited for close-up vocals, guitar amps, drums
• Durable ribbon element and active electronics — robust for live use
• Switchable 6 dB/octave high-pass filter at 283 Hz
• Frequency range: < 20 Hz to >20 kHz — extended lows and smooth highs
• Maximum SPL: ~135 dB (1 kHz, 1% THD)
• Output impedance: 92 Ω; Requires 48 V phantom power
• Excellent off-axis rejection for reduced bleed and ambient noise

TECHNICAL SPECIFICATIONS

• Operating principle: Pressure-gradient transducer (ribbon)
• Polar pattern: Supercardioid (end-address)
• Frequency response: < 20 Hz – >20 kHz
• Maximum SPL: 135 dB SPL or higher
• Sensitivity: −43 dBV (at 1 kHz, no load)
• Output impedance: 92 Ω broadband
• Load impedance recommended: ≥ 1 kΩ
• Phantom power: 48 V, 7 mA
• High-pass filter: 283 Hz, 6 dB/octave (switchable)
• Dimensions: approx. 20.3 cm height × 7.6 cm diameter; Weight: approx. 1.19 kg