RDL STD-150 Passive Audio Divider/Combiner, 150 Ohms

Deliver clean, reliable audio routing for security, surveillance and pro monitoring systems with the Radio Design Labs STD-150 passive audio divider/combiner. Designed for installers and AV professionals, the STD-150 provides flexible 4-channel splitting and combining so you can convert stereo to mono, split a single feed to multiple inputs, or combine microphone sources without powering gear. With a 150 ohm resistive branching network, balanced inputs and outputs, and RF filtering on each channel, it maintains signal fidelity and reduces noise in critical monitoring paths. Any channel (A–D) can be used as an input or output, enabling fast reconfiguration and simplified wiring during installations. Because it’s passive, there’s no power to install or maintain—ideal for remote racks, security control rooms, and broadcast monitoring stations. The compact 3" width and rugged Radio Design Labs construction make it easy to mount in panels or equipment racks. For dependable audio distribution in surveillance, monitoring and live-sound applications, choose the RDL STD-150 — add it to your system or contact your RDL distributor to optimize audio routing today.

• Flexible 4-channel splitting and combining that simplifies stereo-to-mono routing and multi-input distribution without any power required
• Preserves signal integrity with balanced 150 ohm inputs/outputs and RF filtering on every channel
• Passive resistive network isolates equipment, preventing interference and protecting mixers, amps and mics during combines
• Any channel (A–D) can act as an input or an output for fast, intuitive system reconfiguration in the field
• Compact, rugged US-made design integrates easily into pro audio, security and surveillance installations