Opus DCL20 Under-Desk Hearing Loop Amplifier

The Opus DCL20 is a compact hearing loop amplifier designed for discreet mounting under a desk or counter in customer-facing environments. Built for fixed installation, it provides a practical assisted listening solution where clear communication and accessibility are essential, while keeping the system neatly out of sight.

This amplifier includes dedicated microphone and line inputs, onboard settings, and LED status indication for both power block presence and loop power. Designed to meet equal opportunity standards and comply with IEC-60118-4 requirements, the DCL20 is well suited for service counters, reception points, and workstations that require dependable hearing loop performance in a compact format.

Key Features of the Opus DCL20

• Discreet Under-Desk Installation: Designed to mount neatly under a desk or counter for a clean, low-profile assisted listening setup.
• Hearing Loop Amplifier Design: Built for hearing loop applications where reliable audio support and accessibility compliance are important.
• Dual Audio Inputs: Includes one microphone input and one line input for flexible source connection.
• Status LED Indicators: Features an LED that indicates the presence of the power block and loop power.
• Standards Compliance: Meets equal opportunity standards and complies with IEC-60118-4 standard requirements.
• Integrated Audio Processing: Includes adjustable compression, fast attack timing, and automatic lowering behavior for controlled signal handling.
• Protection Features: Includes thermal, short circuit, and start protection for dependable operation.
• Compact Form Factor: Small footprint makes it easy to install in space-limited counters and desks.

Technical Specifications

• Brand: Opus
• Model: DCL20
• Product Type: Under-desk hearing loop amplifier
• Audio Input: 1 x microphone + 1 x line input
• Connector Type: 1 x 3.5 mm micro jack + Phoenix
• Phantom Supply: 4.5 V, 1 mA
• Power Supply Characteristics: 12 V DC / 1.5 A
• Power Supply Type: Separated power block
• Input Voltage: 230 V, 50-60 Hz
• Power Consumption: Less than 20 W
• Fuse: Thermal
• Compression: From 1:1 to 20:1
• Attack Time: 10 mS
• Lowering: Auto 500 mS or 1,500 mS
• Bandwidth: 80 Hz to 8 kHz at -3 dB
• Dynamic: Greater than 0 dB
• THD: THD+N less than 0.5% at 1 kHz
• Output Type: Current
• Loop Impedance: From 0.5 to 1.0 Ohm
• Peak Current: 4 A
• RMS Current: 2 A at 1 kHz
• Protection: Thermal, short circuit and start
• Dimensions: 3.94 x 1.97 x 0.79 inches
• Net Weight: 83 g
• Packaging: Cardboard