The RDL D-J3 is a passive wall-mounted audio interface designed to connect microphone-level and consumer line-level audio sources to professional balanced audio systems. It combines an XLR microphone input with stereo RCA inputs in a single, compact panel, providing a convenient solution for commercial AV and installed sound applications.
The D-J3 accepts a professional microphone through its XLR input or a consumer audio source through the stereo RCA inputs. The left and right line-level signals are combined into a balanced mono output for connection to professional audio equipment.
Transformer isolation helps reduce hum, ground-loop noise, and interference when connecting consumer equipment to a professional audio system. The D-J3 is completely passive and requires no external power.
Its rugged metal construction and single-gang mounting format make it well suited for classrooms, conference rooms, offices, restaurants, retail spaces, fitness facilities, and other commercial audio installations.
RDL D-J3 Key Features
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XLR microphone input for professional microphone sources
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Stereo RCA inputs for consumer-level audio equipment
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Supports microphone and line-level sources from one wall panel
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Transformer-isolated line inputs help reduce hum and interference
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Combines left and right stereo inputs into a balanced mono output
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Rear terminal block for balanced audio connection
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Passive operation requires no external power
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Rugged metal enclosure for commercial installations
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Fits standard US single-gang electrical boxes
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Compatible with RDL WB-1U back boxes
Connect Microphones or Consumer Audio Sources
One of the advantages of the RDL D-J3 is its flexibility. The panel can be used with a microphone connected to the XLR input or with a consumer audio source connected through the RCA inputs.
This makes the D-J3 useful when different types of audio equipment need to connect to the same professional sound system without adding a separate collection of adapters and interfaces.
Typical sources include:
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Professional microphones
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Computers
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CD players
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Media players
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Consumer audio equipment
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Other unbalanced line-level sources
Transformer-Isolated Audio Integration
The D-J3 uses transformer isolation on its line-level inputs to help minimize unwanted hum and interference that can occur when consumer audio equipment is connected to professional sound systems.
The stereo RCA inputs are combined into a mono signal and delivered through a balanced output, making the D-J3 particularly useful for commercial sound systems where long cable runs or mixed audio equipment can create noise problems.
Simple Passive Installation
The D-J3 requires no external power supply, making installation straightforward.
The wall-mounted design fits a standard US single-gang electrical box or an RDL WB-1U back box. This allows the panel to be installed where users need convenient access to a microphone or consumer audio connection while keeping the rest of the audio equipment located in a rack or equipment room.
Typical Applications
The RDL D-J3 is well suited for:
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Conference rooms and boardrooms
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Classrooms and training rooms
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Office AV systems
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Restaurants and retail spaces
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Fitness centers
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Commercial sound systems
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Presentation systems
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Permanent and portable AV installations
D-J3 vs. D-J2
If you're deciding between the two RDL wall panels:
D-J2: Consumer stereo RCA input → balanced output
D-J3: Microphone XLR input plus consumer stereo RCA inputs → balanced mono output
So, if the installation needs the flexibility to connect either a microphone or a consumer audio source, the D-J3 is the better choice.
Why Choose the RDL D-J3?
The D-J3 provides a simple way to bring different audio sources into a professional sound system without requiring an active interface or external power supply. Its combination of XLR microphone input, stereo RCA inputs, transformer isolation, and balanced output makes it a flexible solution for commercial AV installations.
Why Buy from Audio Supply?
Audio Supply can help you select the appropriate RDL audio interface, isolation module, and installation accessories for your system. If you're unsure whether the D-J2, D-J3, or another RDL interface is the right fit, our team can help you determine the best option for your application.
