Precision Audio and AV Interface Products

Radio Design Labs

ST-MX2 2 Channel Audio Mixer - Microphone or line input and output

  • 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
  • Overview
  • Specifications
  • Related Products
  • Accessories
  • Downloads
  • How to Buy
  • Product Series
  • Dimensions

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.

Videos

Applications

Inputs (2):
Selectable mic or line
Input Level for +4 dBu output:
Mic: -45 dBu to -65 dBu; Max input -28 dBu
Line: -18 dBV to +10 dBu; Max input +22 dBu
Input Impedance:
Mic: 200 Ω
Line: 20 kΩ bridging
Input or Output Configuration:
Balanced or unbalanced
Outputs (2):
MIC and LINE
Output Impedance:
150 Ω (mic or line)
Frequency Response:
Mic: 25 Hz to 50 kHz (± 1 dB)
Line: 10 Hz to 30 kHz (± 0.25 dB)
THD+N:
Mic: < 0.05% 25 to 20 kHz
Line: < 0.005%
IMD:
< 0.004%
Output Level:
Mic: -45 dBu
line: +4 dBu
Headroom:
Mic Input: >22 dB (rel. -50 dBu), >32 dB (rel. -60 dBu)
Line Input: >18 dB (rel. +4 dBu), Output: >20 dB (rel. +4 dBu)
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)
CMRR:
Mic: > 65 dB (50 Hz to 120 Hz)
Line: > 45 dB (50 Hz to 120 Hz)
Ambient Operating Environment:
0° C to 55° C
Power Requirement:
GROUND-REFERENCED, 24 Vdc @ 60 mA
Dimensions:
Height 0.7 in. (1.7 cm), Width: 3 in. (7.6 cm), Depth: 1.6 in (3.9 cm)
Package Type:
Cardboard Box
Package Dimensions:
2 x 2 x 4 in.
Shipping Weight:
0.18 lbs.
WEEE weight:
0.125 lbs.
Tariff code:
8543.70.9860

Documents:
Format
PDF
CAD Files:
Format
High Res Images:
Format
Declaration of Conformity:
Format
PDF
A&E Specifications:
Format

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STICK-ON SERIES

STICK-ONs are the original application-specific modules for the A/V, recording and broadcast industries. Module functions include signal detection, switching, pre-amplification, format conversion, line driving, power amplification, mixing, distribution, gain control, equalization, routing and more. Each STICK-ON is an ultra-compact module engineered to provide higher performance and longer life than other industry products. STICK-ON modules are solid encapsulated hybrid circuits in durable industrial black plastic enclosures (1.55", 3.94 cm x 3", 7.62 cm x 0.65", 1.65 cm) with clear bold white lettering for the terminal block connections, recessed trimming controls and switches.

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ST-MX2 ST-MX2