RDL D-HA1A Format-A Stereo Headphone Amplifier, Mini Jack, RJ45, White

Deliver private, high-quality audio monitoring without complex wiring. The Radio Design Labs D-HA1A Format-A Stereo Headphone Amplifier is a compact, Decora-style receiver that accepts stereo audio and 24 Vdc power over a single RJ45 Format-A connection, then drives headphones through a front-panel 3.5 mm mini-jack with a user-accessible volume control. Designed for hotels, conferencing suites, security control rooms and surveillance monitoring stations, the D-HA1A offers superior common-mode rejection and low-noise amplification for clear, undistorted listening. Installers benefit from standard twisted-pair cabling and an RJ45 loop-thru for daisy-chaining additional receivers, cutting labor and material costs compared with shielded wiring. The unobtrusive white steel faceplate and absence of illuminated indicators make it suitable for guest-room or sensitive monitoring environments. Backed by a 3-year limited warranty and an automatic reset fuse for dependable operation, the D-HA1A is an economical, professional solution for distributed audio, monitoring and security applications. Order the Radio Design Labs D-HA1A today to streamline headphone monitoring installations.

• Simple, low-cost installation: receives stereo audio and 24 Vdc power over a single Format-A RJ45, reducing wiring time and material costs.
• High-fidelity, low-noise headphone output on a 3.5 mm mini-jack for clear monitoring in guest rooms, security stations, or control rooms.
• Front-panel volume control and no distracting LEDs—ideal for bedside or restroom listening in hospitality and sensitive surveillance areas.
• RJ45 loop-thru lets you daisy-chain additional Format-A receivers for flexible multi-room or multi-station deployments.
• Rugged Decora steel faceplate and compact wall/cabinet mount form factor for secure, professional installations with an auto-reset fuse for reliable operation.