The 3506A Stereo Kit with 4006A Omnidirectional Microphones from DPA is designed for the crucial capturing of instruments or vocals in recording and live sound reinforcement applications. The kit includes two frequency matched 4006A omnidirectional microphones, two 30mm ball acoustic pressure equalizers, two 40mm ball acoustic pressure equalizers, two 50mm ball acoustic pressure equalizers, two free-field grids, two close-miking grids, two diffuse-field grids, two nose cones, two foam windscreens, two microphone clips, and one stereo boom without holders. The 4006A microphones are matched within ± 0.5 dB on frequency range, sensitivity, and self-noise. A high sensitivity, low noise-floor, and linear frequency response allow for use of the microphone with professional A-B stereo recordings.