Comparison of Focusrite CM25 and Gauge Microphones ECM-47

Attribute	Gauge Microphones ECM-47 ×	Focusrite CM25 ×
Diaphragm Gauge (micron)	6	-
Brand	Gauge Microphones	Focusrite
Includes Tube Power Supply	+	-
Sensitivity (mV/Pa)	16	15.8
Pickup Pattern	Bidirectional Cardioid Omnidirectional	Cardioid
Capsule Diameter (mm)	35	20
Range (Hz)	20 - 20,000	30 - 20,000
Sound Pressure Level (SPL) (dB)	135	130
Impedance (Ohm)	200	150
Self-Noise (dB)	18	18
SPL/Self-Noise Ratio	7.5	7.22
Interfaces	3-pin XLR male	3-pin XLR male
Requires Phantom Power	-	+
Name	Gauge Microphones ECM-47	Focusrite CM25