RDL D-J3 Mic/Line Input Assembly-XLR, RCA, Terminal Block

Install clean, professional mic and line inputs at the point of use with the Radio Design Labs D-J3 Mic/Line Input Assembly. This faceplate module streamlines audio wiring for AV, security and surveillance installations by offering a front-panel female XLR for microphone-level sources and two gold-plated phono (RCA) jacks for mono or stereo consumer line inputs. Left and right phono inputs are combined and balanced through transformer isolation to reject hum and deliver a noise-resistant, balanced mono output to downstream amplifiers or monitoring equipment with 10 kΩ or higher input impedance.

Built into a clearly labeled metal enclosure, the D-J3 mounts directly into RDL back boxes, standard US single-gang electrical boxes, or cabinets for fast, repeatable installations. The rear-panel terminal block simplifies connections to amplifiers, matrix switchers and paging systems while gold contacts ensure long-term reliability. Whether you’re configuring audio for a surveillance control room, paging in a security facility, or integrating inputs in an AV system, the RDL D-J3 provides professional-grade audio conditioning and flexible connectivity. Add the D-J3 to your next security or monitoring installation to reduce noise, speed deployment, and improve audio clarity.

• Simplifies field wiring with a single metal faceplate that mounts in standard US single-gang or cabinet back boxes, reducing installation time and labor
• Provides reliable, low-noise audio with transformer isolation and hum rejection for RCA/unbalanced sources, delivering clear signals to amplifiers and monitoring systems
• Accepts both mic and consumer line sources via a female XLR and dual phono (RCA) jacks for flexible connectivity in AV and security setups
• Balanced mono line output on a rear terminal block ensures compatibility with 10 kΩ+ inputs and long cable runs without degradation
• Rugged metal enclosure and gold-plated contacts enhance durability and long-term signal integrity in commercial installations
• Ideal for security, surveillance, paging and conferencing systems that require clean microphone and line-level inputs