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Line Level Mixer


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. 24-Volt power supply required. (PS24A sold separately)

Main Features:
• Mix Line-Level Signals
• Three Individually Adjustable Inputs
• Add Additional Line Level Inputs to an Existing Mixer
• Combine Signals of Different Level, Impedance or Balanced /Unbalanced Configuration
• Isolation Between Input Signals
• Low-Noise and Low-Distortion Performance
• RDL SupplyFlex Power Input Configuration

• 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 Vdc @ 55 mA
• Ambient Operating Environment:0° C to 55° C

RDL ST-MX3 Figure 1

RDL ST-MX3 Figure 2

List Price: $195.55
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