The Earthworks DK7 Drum Microphone Kit includes a user guides for all the microphones in the kit.
Features:
SR25 Specs:
Frequency Response: 20Hz-25kHz
Polar Pattern: Cardioid
Sensitivity: 10mV/Pa (-40dBV/Pa)
Power Requirements: 24-48V Phantom, 10mA
Max Acoustic Input: 145dB SPL
Output: XLR (pin 2+)
Output Impedance: 65Ω balanced (between pins 2 & 3)
Min Output Load: 600 Ω between pins 2 & 3
Noise: 20dB SPL equaivalent (A weighted)
Dimensions (LxD): 6.5 x 0.860 inches (165mm x 22mm)
Weight: 0.35 lb (160g)
SR20LS Specs:
Frequency Response: 20Hz-25kHz
Polar Pattern: Cardioid
Sensitivity: 3mV/Pa (-50dBV/Pa)
Power Requirements: 24-48V Phantom, 10mA
Max Acoustic Input: 150dB SPL
Signal-to-Noise Ratio: 74dB A-weighted
Output: XLR (pin 2+)
Output Impedance: 200Ω balanced (between pins 2 & 3)
Min Output Load: 1000 Ω between pins 2 & 3
Noise: 20dB SPL equaivalent (A weighted)
Dimensions (LxD): 7.57 x 0.860 inches (192mm x 22mm)
Weight: 0.36 lb (164g)
DM20 Specs:
Frequency Response: 20Hz-25kHz
Polar Pattern: Cardioid
Sensitivity: 8mV/Pa (-42dBV/Pa)
Power Requirements: 24-48V Phantom, 10mA
Max Acoustic Input: 150dB SPL
Signal-to-Noise Ratio: 74dB A-weighted
Output: XLR (pin 2+)
Output Impedance: 200Ω balanced (between pins 2 & 3)
Min Output Load: 1000 Ω between pins 2 & 3
Noise: 20dB SPL equivalent (A weighted)
Dimensions (LxD): 11.12 x 0.860 inches (282mm x 22mm)
Gooseneck Length: 4.75 inches (121mm)
Weight: 0.55 lb (0.25kg)