RDL DB‑SH1M Premium Stereo Headphone Amplifier 

The RDL DB‑SH1M Premium Stereo Headphone Amplifier brings professional-grade audio control neatly hidden behind a Decora-style panel. Once mounted and powered, the DB‑SH1M transforms any 24 Vdc source into a clean, controlled listening experience with more than 50 mW available for either high-impedance or low-impedance headphones.

Inside each unit, dual balanced (or unbalanced) left/right inputs accept levels from –20 dBV up to +20 dBu, and let you flip a switch for input sensitivity or even mono operation, ideal for gallery audio guides or language interpretation booths. On the surface, the long-life VCA potentiometer adjusts volume smoothly without introducing hiss because the signal bypasses the control circuitry.

The DB‑SH1M amplifier fits effortlessly into any wall plate or mounting accessory, thanks to its compact Decora panel size and sleek black finish. Setup takes minutes, but the solid metal build and noise-free operation ensure it performs reliably for years. Explore more from our Video & Audio collections to find the perfect companion for your setup.

Key Features:

• Dual-channel headphone amplifier with 50 mW into 100 Ω, suitable for any impedance
• Balanced/unbalanced inputs accept –20 dBV to +20 dBu; recessed switches for sensitivity and mono/stereo mode
• Front-panel VCA-controlled volume knob ensures noise-free adjustment over the long term
• Compact Decora panel form factor, mounts in wall boxes or accessories; durable metal/black finish
• Powerful output adaptable to professional headphones; THD <0.5%, frequency response 30 Hz–20 kHz
• Powered by 24 Vdc supply (gateways for 12 Vdc usage with reduced output)