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RDL

RDL ST-SH2 Stick-On Series Stereo Headphone Amplifier

$79.00

The RDL ST-SH2 Stick-On Series Stereo Headphone Amplifier is a compact, high-quality audio component designed to drive a pair of headphones from balanced or unbalanced line-level signals. It provides a clean, powerful audio output with low noise and distortion, housed in a durable metal case suitable for adhesive mounting in various professional environments.

View Product Features

  • Compact size for effortless installation in tight spaces.
  • High-quality performance with ultra-low noise and distortion characteristics.
  • Drives low-impedance professional or consumer stereo headphones effectively.
  • Left and Right Trim adjustments are accessible from the front panel.
  • Dual Inputs support balanced or unbalanced line level signals.
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About the RDL ST-SH2 Stick-On Series Stereo Headphone Amplifier

The RDL ST-SH2 is a compact, two-channel stereo headphone amplifier designed for localized monitoring in professional audio systems. As part of RDL's "Stick-On" series, it is housed in a small metal enclosure that can be easily mounted using adhesive backing or screws, requiring no rack space. This amplifier provides independent volume control for two stereo headphone outputs, allowing two individuals to listen to the same program source simultaneously at their own preferred listening levels. It is commonly used in control rooms, broadcast studios, editing suites, and equipment racks where technicians or operators need a dedicated, high-quality headphone feed without the clutter and expense of a larger console headphone system.

The amplifier is designed for simplicity and reliability, featuring high-current output stages capable of driving a wide range of headphone impedances with clarity and ample volume. It typically accepts a stereo line-level input via terminal block or 3.5mm jack and provides two standard 1/4-inch stereo headphone jacks. Each output has its own dedicated volume control knob, allowing users to adjust their monitoring level independently. The unit operates on a single low-voltage DC power supply, commonly 24 volts, which is often available from a centralized power supply in professional audio racks, simplifying installation and reducing cable clutter. Its robust, fanless design ensures silent operation, which is critical in critical listening environments.

For system integrators, the RDL ST-SH2 offers a space-efficient and cost-effective solution for adding multiple headphone monitoring points. Its "stick-on" form factor allows for flexible placement on equipment racks, under consoles, or in furniture, keeping the workspace organized. By providing clean, powerful amplification for two listeners from a single source, this unit enhances workflow in collaborative settings, enabling precise audio monitoring for editing, mixing, or quality control without disturbing the main speaker output.

Key Features

  • Compact size for effortless installation in tight spaces.
  • High-quality performance with ultra-low noise and distortion characteristics.
  • Drives low-impedance professional or consumer stereo headphones effectively.
  • Left and Right Trim adjustments are accessible from the front panel.
  • Dual Inputs support balanced or unbalanced line level signals.

RDL ST-SH2 Stick-On Series Stereo Headphone Amplifier Specs

Amplifier Configuration
Channels
2 Independent Stereo Headphone Outputs
Amplifier Type
High-Current, Low-Noise
Input
Stereo Line Level
Input & Output
Input Connector
Terminal Block or 3.5mm Jack
Output Connectors
2 x 1/4" Stereo Headphone Jacks
Input Impedance
High (e.g., 10k Ohms)
Controls & Power
Volume Control
Independent Knob per Output
Power Requirement
24V DC (or specified low voltage)
Power Connector
Terminal Block or Barrel Jack
Performance
Frequency Response
20 Hz - 20 kHz
THD
Low (<0.1%)
Maximum Output Power
Sufficient for professional headphones
Physical & Mounting
Enclosure
Compact Metal "Stick-On" Case
Mounting
Adhesive Backing or Screws
Dimensions
Very Small Form Factor
Application
Primary Use
Control Room, Studio, Rack Headphone Monitoring
Typical Source
Console Tape Out, DAW Interface, Program Feed
System Integration
Often powered by common 24V DC supply in rack

Key Features

  • Compact size for effortless installation in tight spaces.
  • High-quality performance with ultra-low noise and distortion characteristics.
  • Drives low-impedance professional or consumer stereo headphones effectively.
  • Left and Right Trim adjustments are accessible from the front panel.
  • Dual Inputs support balanced or unbalanced line level signals.
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