AEA KU4

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AEA KU4

AEA

KU4

5 Expert Rating

Product Info

Article Number: 565628
Brand: AEA
Model: KU4
Price: $7,698.90

* Prices may vary. Check retailer for current pricing and availability.

The KU4 is a truly special ribbon mic—it's got a refined, airy quality that's fantastic on vocals, especially for singers needing to cut through a dense mix. The supercardioid pickup pattern makes it a beast for isolating instruments in tricky rooms, but you'll need a preamp that can handle its output impedance. This is for serious engineers and vocalists wanting top-tier performance.

Product Description

  • AEA KU4
  • Passive Ribbon Microphone
  • Ideal for vocals and instrument miking
  • Polar pattern: supercardioid
  • 1.8 µm thin folded aluminium ribbon (2.1 x 28.6 mm)
  • Reduced proximity effect
  • Frequency range: 30 to 20
  • 000 Hz
  • Maximum sound pressure level: 140 dB SPL (above 200 Hz for 1 % THD)
  • Sensitivity: -52 dBV (2.5 mV/Pa) at 1 kHz
  • Output impedance: 300 Ohm
  • Dimensions (H x W x D): 320 x 116 x 94 mm
  • Weight: 2.23 kg
  • Handmade in USA
  • Incl. microphone holder
  • protective cover and a high-quality carrying case
PROS
  • • Exceptional transient response thanks to the folded ribbon design.
  • • Remarkably natural vocal reproduction, minimizing harshness.
  • • Supercardioid pattern excels in isolation, crucial for modern tracking.
  • • Robust build quality; clearly built to withstand studio and stage use.
CONS
  • • High output impedance demands a high-quality, impedance-matched preamp.
  • • Supercardioid pattern can be tricky to manage in less-than-ideal acoustic spaces.
  • • Premium-priced, representing a significant investment for most studios.

Product Video

Key Features

Mic Type Passive Ribbon Microphone
Polar Pattern Supercardioid
Frequency Range 30 Hz to 20,000 Hz
Max SPL 140 dB SPL (above 200 Hz for 1 % THD)
Sensitivity -52 dBV (2.5 mV/Pa) at 1 kHz
Connector XLR
Weight 2.23 kg

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Frequently Asked Questions

The KU4 is brighter and more detailed than the R84, with a quicker response, while the R84 retains a warmer, more vintage character.
While a tube preamp will often enhance the KU4's warmth, a clean, high-quality solid-state preamp with ample gain and a suitable impedance can also deliver excellent results.
It *can* be used live, but requires careful mic placement and monitoring to avoid feedback and maintain consistent sound; best suited for controlled stage environments.

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