IR Blasters & Repeaters
Extending IR range, distributing signals through walls, and controlling devices in other rooms.
IR Repeaters
IR repeaters are the simplest solution for extending IR control. A small sensor picks up IR signals from your remote, and the repeater retransmits them via a wire (typically Cat5/Cat6) to an IR emitter placed in front of the target device.
This is commonly used when AV equipment is hidden in a closet or cabinet — you place the IR sensor somewhere visible (like near your TV), run a cable to the equipment closet, and place emitters in front of each device. The remote appears to work normally even though the equipment is out of sight.
IR Blasters
IR blasters are higher-power IR transmitters designed to flood a room with IR signals. Unlike a repeater which targets a specific device, a blaster bounces IR signals off walls and ceilings to reach devices anywhere in the room.
Many modern TVs and set-top boxes include built-in IR blaster functionality. Samsung, LG, and Sony TVs can learn IR codes from your existing remotes and retransmit them through a built-in blaster, allowing you to control a soundbar or Blu-ray player with the TV remote.
Network IR Blasters
The most powerful IR distribution systems use network-connected blasters. Products from Global Cache, BitWise, and others accept commands over Ethernet/WiFi and translate them into IR signals. This enables:
- Control of IR devices from smartphones and tablets
- Integration with home automation systems (Home Assistant, Control4, Crestron)
- Multi-room IR distribution without running dedicated cables
- Cloud-based remote access to home AV equipment
How to Set Up IR Distribution
- Single room, hidden equipment: Use a simple IR repeater kit ($20-50)
- Multi-room: Use IR-over-coax or network-based IR blasters ($100-300)
- Whole-home automation: Use a professional system with network IR ($300-1000+)
- Smart home DIY: Use a Global Cache or Broadlink IR blaster with Home Assistant