The KU Series: KU4 vs KU5A
The KU Series of ribbon microphones, AEA’s collection of supercardioid ribbons, are some of the most flexible microphones in the entire line. These microphones break new ground in ribbon technology with their focused directionality that rejects room reflections, loud ambience, and bleed from other instruments in the studio or on the stage. The KU Series comprises the KU4 and KU5A and aside from their shared polar pattern, each microphone is itself unique in nearly every sense.
Both the KU4 and KU5A feature a supercardioid polar pattern which sets them apart from traditional figure-of-8 ribbons by providing superior rejection from the sides and the rear of the mic. This feature makes it easier to position these mics amidst multiple other sources in a live recording scenario, or on a live stage. The supercardioid polar pattern of KU Series microphones is achieved with an acoustical labyrinth that delays the sound that reaches the rear side of the ribbon.
Both mics feature a captive cable that is tethered to an integrated yoke mount. The yoke of the KU4 and KU5A allow for enhanced maneuverability when positioning the mics in tight spaces.