Precision Audio and AV Interface Products

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ST-MX3 3 Channel Audio Mixer - Line input and output

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

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 ground-referenced floating or bipolar dc power.

For installations with microphone level inputs, use the ST-UMX3 Universal Audio Mixer.

Videos

Applications

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)
Ambient Operating Environment:
0° C to 55° C
Power Requirement:
GROUND-REFERENCED or FLOATING, 24 Vdc @ 55 mA
Package Type:
Cardboard Box
Package Dimensions:
2 x 2 x 4 in.
Shipping Weight:
0.17 lbs.
WEEE weight:
0.12 lbs.
Tariff code:
8543.70.9860

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

Since RDL first originated application-specific modules, STICK-ONs have led the industry in economical, high-performance and cost-effective long life solutions in system designs. Multiple STICK-ON modules can be interconnected to form all or part of an A/V system. A single STICK-ON module may be mounted right where its function is needed, often to add an input, output, or gain adjustment to existing equipment. STICK-ON modules allow customizing an A/V system to precisely match users’ needs. Adding STICK-ONs to an existing system can extend system life by adding updated features, resulting in considerable cost savings. A complete range of backboard and rack mounting options is available for systems comprised of multiple STICK-ON modules.

The technology used in STICK-ON modules has been regularly updated over the years to insure industry-leading performance. Functions and features provided by STICK-ONs, since their introduction, are still available today. This continuity in product offering and support makes STICK-ON modules the preferred long-term resource for system design solutions. STICK-ON SERIES modules are designed and manufactured in the U.S.A.

ST-MX3 ST-MX3