Sound Technology

ST-MX2

2 Channel Audio Mixer - Microphone or line input and output

The ST-MX2 is used in any application requiring mixing of two audio sources. A mic may be mixed with a line-level music source. Two mics may be mixed to feed the mic or line level input of a power amplifier. A mic or professional +4 dBu line-level mono sum is possible. It may be used to convert mono line-level signals from consumer to professional, or from professional to consumer format. It may also be used as a microphone preamplifier, or conversely to adapt unbalanced or balanced line-level signals into the microphone input of other equipment.
Ambient Operating Environment0° C to 55° C
CMRRMic: > 65 dB (50 Hz to 120 Hz)
Line> 45 dB (50 Hz to 120 Hz)
Noise (below +4 dBu)Mic: <-70 dB (150 Ω source, 50 dB gain), <-80 dB (200 Ω source, 50 dB gain)
Line< -90 dB (reference +4 dBu, unity gain)
IMD< 0.004%
THD+NMic: < 0.05% 25 to 20 kHz
Line< 0.005%
Outputs (2)MIC and LINE
Output Impedance150 Ω (mic or line)
Frequency ResponseMic: 25 Hz to 50 kHz (± 1 dB)
Line10 Hz to 30 kHz (± 0.25 dB)
Input or Output ConfigurationBalanced or unbalanced
Input ImpedanceMic: 200 Ω
Line20 kΩ bridging
Input Level for +4 dBu outputMic: -45 dBu to -65 dBu; Max input -28 dBu
Line-18 dBV to +10 dBu; Max input +22 dBu
Output LevelMic: -45 dBu
line+4 dBu
HeadroomMic Input: >22 dB (rel. -50 dBu), >32 dB (rel. -60 dBu)
Line Input>18 dB (rel. +4 dBu), Output: >20 dB (rel. +4 dBu)
Inputs (2)Selectable mic or line
Power RequirementGROUND-REFERENCED, 24 Vdc @ 60 mA
DimensionsHeight 0.7 in. (1.7 cm), Width: 3 in. (7.6 cm), Depth: 1.6 in (3.9 cm)
Package TypeCardboard Box
WEEE weight0.125 lbs.
Shipping Weight0.18 lbs.
Tariff code8543.70.9860
Package Dimensions2 x 2 x 4 in.
  • Two Input Audio Mixer
  • Selectable Mic or Line Level Inputs
  • Simultaneous Mic and Line Outputs
  • Add Additional Inputs to an Existing Mixer
  • Audio Output Dual-LED VU Metering
  • Balanced or Unbalanced Inputs and Outputs
  • Low-Noise and Low-Distortion Performance