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AEA KU4 Supercardioid Ribbon Microphone

Unidirectional Ribbon Mic Constructed from Authentic New Old Stock RCA Ribbon Material
Write review Item ID: KU4
$5,999.00

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AEA KU4 Supercardioid Ribbon Microphone
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$5,999.00
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An Updated Version of a Classic!

Made from authentic new old stock RCA materials, the AEA KU4 is a modern revival of the legendary RCA unidirectional KU3A. This high-sensitivity ribbon microphone was originally designed for top-end Hollywood movie studios. Fewer than 600 KU3As were ever made, and those few engineers who were lucky enough to use them simply raved about their smooth sound, wide sweet spot, and minimal proximity effect. Now, the KU4 lets you experience this amazing mic in your own studio!

AEA KU4 Unidirectional Ribbon Mic Features:
  • Contemporary realization of the RCA KU3A classic
  • Supercardioid pattern for excellent rear rejection
  • Reduced proximity effect
  • Smooth, high-bandwidth frequency response
  • Authentic New Old Stock RCA ribbon material
  • High-quality anodized & nickel-plated finish
  • Custom AEA transformer, neodymium magnets
  • Consistent Quality
  • Field-tech replaceable ribbon assembly
  • Hand-crafted in Pasadena, California

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Tech Specs

  • Microphone Type: Ribbon
  • Ribbon Type: 1.8-micron Aluminum (2.1mm x 28.6mm)
  • Polar Pattern: Supercardioid
  • Frequency Response: 30Hz-20kHz
  • Max SPL: 140dB
  • Output Impedance: 300 ohms
  • Connector: XLR
  • Weight: 4.7 lbs.
  • Included Accessories: Stand Adapter, Case
  • Manufacturer Part Number: KU4

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