Microphone-Parts.com - What happens when you put an RK-87 capsule into an AKG Perception 100/200/220/420? You basically get the sound of the U87 Ai, although with better 20k response. No more 12kHz
Suspension Anti Vibration Mic Shockproof Holder Microphone Stand Shock Mount For AKG Perception 100 200 400 P100 P200 P400 _ - AliExpress Mobile