The RDL D SERIES-PA3 is a compact Class D audio amplifier designed for commercial and professional installations where space is limited. Delivering 3.5 watts RMS into 8 ohms or 6.5 watts RMS into 4 ohms, the PA3 provides a convenient solution for driving small low-impedance speakers in offices, classrooms, retail stores, restaurants, fitness facilities, and other installed audio environments.
The PA3 accepts both balanced line-level audio and consumer audio sources through its front-panel stereo mini-jack. Automatic input switching makes it easy to connect a permanent professional audio source while also providing convenient access to a local consumer device.
Its wall-mounted, ultra-compact design allows the amplifier to be installed close to the loudspeaker or audio source without taking up valuable rack space. High-efficiency Class D amplification minimizes heat generation, while built-in thermal and short-circuit protection helps provide dependable operation in commercial installations.
Compact Amplification for Installed Audio Systems
The RDL PA3 is designed for applications that require a small, efficient amplifier without the size of a traditional rack-mounted amplifier. Its compact enclosure can be installed in or near a wall box, making it well suited for distributed audio systems where equipment needs to remain discreet.
The amplifier provides 3.5W RMS at 8Ω or 6.5W RMS at 4Ω, making it appropriate for powering small commercial loudspeakers used for background music, announcements, speech reinforcement, and other low-power audio applications.
Flexible Audio Inputs
The PA3 provides two convenient input options. A balanced line-level input on the rear panel accommodates professional audio equipment, while a 3.5mm stereo mini-jack on the front panel allows connection of computers, mobile devices, or other consumer audio sources.
An automatic input selection circuit simplifies operation by switching between the available sources. Rear-panel input sensitivity adjustment and a front-panel gain control provide additional flexibility when setting system levels.
Efficient Class D Amplifier Design
The Class D amplifier design provides efficient operation with low heat generation, making the PA3 well suited for continuous operation in compact installations. Built-in thermal and short-circuit protection helps protect the amplifier and connected loudspeaker during demanding operating conditions.
Speaker connections are made through a detachable rear-panel terminal block, providing a clean and secure connection during installation.
RDL D SERIES-PA3 Key Features
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Compact wall-mounted audio amplifier for commercial installations
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High-efficiency Class D amplifier design
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3.5W RMS output into 8Ω
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6.5W RMS output into 4Ω
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Balanced rear-panel line-level audio input
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Front-panel 3.5mm stereo mini-jack input
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Automatic switching between audio inputs
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Adjustable rear-panel input sensitivity
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Front-panel gain control
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Thermal protection
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Short-circuit protection
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Detachable terminal block speaker output
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Ultra-compact all-metal enclosure
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Designed for discreet installation where rack space is limited
Ideal Applications
The RDL D SERIES-PA3 is a practical amplifier solution for:
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Classrooms and educational facilities
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Corporate offices and conference rooms
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Retail stores
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Restaurants and cafés
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Fitness centers
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Small commercial audio systems
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Background music systems
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Voice and announcement systems
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Small 4Ω and 8Ω loudspeaker installations
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Distributed audio systems
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Wall-mounted AV installations
RDL D SERIES-PA3 Specifications
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Product Type
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Compact Class D audio amplifier
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Output Power
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3.5W RMS @ 8Ω / 6.5W RMS @ 4Ω
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Amplifier Class
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Class D
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Main Input
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Balanced line-level
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Front Input
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3.5mm stereo mini-jack
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Input Switching
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Automatic
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Gain Control
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Front panel
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Input Sensitivity
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Adjustable
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Speaker Output
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Detachable terminal block
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Protection
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Thermal and short-circuit
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Mounting
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Wall-mounted
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Construction
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Metal enclosure
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Why Choose the RDL D SERIES-PA3?
The RDL D SERIES-PA3 provides a simple way to add local amplification to a commercial audio installation without requiring a full-size rack amplifier. Its combination of compact wall-mounted construction, Class D efficiency, automatic input switching, balanced audio input, and 4Ω/8Ω speaker compatibility makes it especially useful for small distributed audio systems.
For installations that need reliable low-power amplification in a discreet form factor, the PA3 offers a space-saving alternative to conventional commercial amplifiers.
