Mic typemulti-pattern condenser microphonepolar pattern(s)omnidirectional
cardioid
bidirectional
pricing & availabilitymsrpstreetavailabilitydiscontinuedphysical characteristicsweight500g / 17.64ozlength200mm / 7.87''diameter56mm / 2.20''interface(s)3-pin xlr male (1)
electrical characteristicsimpedance200 ωmax splself-noisetransducer characteristicstypecondensercapsule diameter34mmdiaphragm diam.26mmdiaph. thickness0 micronspads & filterspad-10db (via switch)filterhpf (via switch)
the u 87 was designed as a solid-state version of the u 67 tube microphone. it retained the k67-style capsule of the u67, but replaced the tube amplifier circuit with a fet/transformer design.
in short, the u87 was a tripolar fet condenser with a transformer-coupled output. a switch below the headbasket allowed selection of cardioid, omni, or figure-8 patterns.
the mic’s capsule, called the k87, was a center-terminated, dual-backplate, dual-diaphragm 34mm design, like the k67. it differed from the k67