The SCM820 has a cooling fan. Please provide operational details and noise measurements.
The SCM820 fan only activates when the internal air temperature reaches 65 degrees C, or roughly 40 degrees C ambient air temperature. The fan activates at "Start" speed when the low temperature set-point is reached for one second before backing off to the "Minimum" speed. Installing the SCM820 in a well-ventilated rack will typically keep the internal temperature below 65 degrees C.
Note: High fan speed will occur only at temperature extremes. Under normal operating conditions, the fan will remain idle.
Measurement mic on-axis with the cooling fan:
|Total Noise 20-20k dBA SPL|