RDL STD-10K STD Series 10 kohm Passive Audio Divider/Combiner Networks

For integrators who need reliable, interference-free audio routing in security, surveillance and pro AV systems, the Radio Design Labs STD-10K passive audio divider/combiner delivers a simple, maintenance-free solution. This STD series device uses a 10 kΩ resistive branching network with RF filtering on each of four balanced channels, so you can safely combine stereo into mono, split a mono feed to stereo inputs, or merge multiple mic feeds into a single amplifier input without powering the unit. All inputs and outputs are balanced to support long cable runs and reduce noise in monitoring applications. The flexible A–D channels may be used as either inputs or outputs, giving system designers freedom to reconfigure signal paths quickly on-site. Housed in RDL’s compact STICK-ON package and made in the U.S., the STD-10K is ideal for surveillance audio distribution, remote monitoring, and pro accessory racks where space is limited. Add the RDL STD-10K to your next project to streamline audio distribution and improve signal clarity—contact your supplier to specify it in your system.

• Combine or split balanced audio lines without power: mix stereo to mono or feed one mono source to multiple inputs for flexible system routing
• 10 kΩ resistive network with RF filtering on each channel preserves signal integrity and reduces interference in surveillance and monitoring systems
• Four independent balanced channels (A–D) can be used as inputs or outputs for versatile combining/branching in pro audio and security installations
• Compact RDL STICK-ON form factor for discreet mounting near cameras, amplifiers, or equipment racks—ideal for tight installations
• Allows safe passive combining of multiple microphones to a single amplifier input, preventing harmful loading or signal distortion