Radio Design Labs ST-MX3, 3 Line Input Mixer - Line Out
The ST-MX3 is a line-level mixer module in the STICK-ON Series of products. It provides audio mixing of three line-level inputs with individual input gain adjustments. The line-level output is capable of driving either high or low impedance, balanced or unbalanced loads.
The ST-MX3 operates from floating or bipolar dc power.
For installations with microphone level inputs, use the ST-UMX3 Universal Audio Mixer.
Inputs (3):
30 kΩ balanced or unbalanced bridging
Input Level:
-20 dBu to +18 dBu (for +4 dBu output) -24 dBu to +14 dBu (for 0 dBu output)
Output:
400 Ω to drive low or high impedance balanced or unbalanced lines
Output Level:
+4 dBu nominal, (adjustable; unbalanced output 6 dB below balanced line level)
THD+N:
< 0.03% (10 Hz to 20 kHz)
Frequency Response:
10 Hz to 20 kHz (+/- 0.5 dB)
Noise :
< -80 dB (all inputs @ 10 dB gain, referenced to +4 dBu)
Headroom:
18 dB
Gain (each input):
-14 dB to +24 dB (adjustable)
CMRR:
> 50 dB (50 to 120 Hz)
Power Requirement:
GROUND-REFERENCED or FLOATING, 24 to 33 Vdc @ 55 mA
Ambient Operating Environment:
0° C to 55° C
