The AEA KU4 has the unmistakable characteristics of a smooth ribbon sound, yet it is uniquely different. Like other ribbons, its lightly-tensioned, ultra low mass ribbon has a frequency response beyond 20 kHz, an accurate transient response, and no upper midrange resonances common to large condenser mics. Having a supercardioid instead of a figure-eight polar response pattern mics sets it apart from other ribbon mics. The AEA KU4's suppressed rear lobe reduces the pickup of room ambience and is especially useful when the rear of a figure-eight pattern would pick up undesirable sounds. The AEA KU4's reduced bass proximity effect facilitates closer miking, while its low-tuned ribbon does not exhibit bass distortion. These characteristics make the AEA KU4 well-suited for the modern studio. It is currently the only supercardioid ribbon microphone in commercial production.
AEA KU4 Specifications and Curves:
Level changes with angle, reduced HF response above and below 0° / 180° axis
Transducer element: Ribbon
Thickness: 1.8 microns ( .0000018 meter ) of pure aluminum
Ribbon Width: 0.082” (2.1 mm)
Ribbon Length: 1.25” (28.6 mm)
Custom storage/shipping case, stand adapter, manual and attached 1.5 meter microphone cable.
Weight with Cable: 4 lb 11 oz (2.15 kg)
Weight with case: 7 pounds (3.2 kg)
Height: 12.65” (32.4 cm)
Width: 4.62” (11.7 cm)
Depth: 3.75” (9.5 cm)