Cable Matters 990ft Audio over Ethernet Extender with DAC

Cable Matters 990ft Audio Over Ethernet Adapter Kit lets you transmit digital optical (Toslink) or analog L/R RCA audio up to 990 feet over Cat5e/Cat6 with a built-in DAC for analog outputs.

Move audio signals across long distances without running bulky coax or optical runs. This two-piece kit includes a transmitter and receiver that convert and carry audio over standard Ethernet cable, supporting LPCM, Dolby Digital and 5.1 formats while offering a digital-to-analog converter so you can feed analog speakers or legacy amplifiers directly. The units are metal-housed and plug-and-play, designed to bridge modern TVs, projectors, soundbars, AVR systems and older stereo equipment when sources and listening zones are far apart.

How does the extender send audio nearly 1,000 feet without delay?

The kit converts the source audio into signals that travel across Cat5e/Cat6 cable, preserving timing and channel integrity so you don’t experience lip sync drift or audible lag. Using Ethernet as the transport medium provides a low-loss path compared with long optical or RCA runs.

• Supports up to 990 ft (300 m) over a single Cat5e/Cat6 cable
• Maintains synchronous playback—no added latency for most setups
• Metal enclosures reduce interference and improve signal stability

Which audio formats and outputs are supported?

The adapter passes both digital optical (Toslink) and analog stereo (L/R RCA). On the receiving side a built-in digital-to-analog converter (DAC) allows digital sources to drive analog inputs without a separate converter box, while still preserving multichannel digital where supported.

• Digital: Toslink optical for LPCM, Dolby Digital and 5.1 surround
• Analog: L/R RCA outputs via the integrated DAC for speakers or amps
• Auto-detects common format handshakes between source and sink

How easy is installation and what hardware do I need?

Setup is plug-and-play: attach the transmitter to the audio source, run a Cat5e/Cat6 cable to the receiver, and connect the receiver to your display or speakers. No software or network configuration is required because the devices use a point-to-point link rather than your local network.

• Requires two power adapters (included) and one Cat5e/Cat6 cable
• No router, switch, or IP configuration necessary
• Simple LED indicators show power and link status for troubleshooting

What environments benefit most from this extender?

This kit is ideal when the audio source and listening area are separated by walls, long hallways or different rooms where running long optical or RCA cables would be impractical. It’s also useful for retrofit projects where you want to reuse existing Ethernet runs to carry audio.

• Home theaters where the AVR or media player sits far from the display
• Conference rooms, classrooms or auditoriums needing remote audio feed
• Renovations: use existing in-wall Cat5e/Cat6 cabling to avoid new conduits

Who is this for: The Cable Matters 990ft Audio Over Ethernet Adapter Kit is for homeowners, AV installers and small venue operators who need a reliable, low-latency way to carry optical or analog audio across long distances without major rewiring. Choose this if you want a compact, metal-enclosed transmitter/receiver pair that supports modern digital formats and provides analog outputs via an integrated DAC, enabling compatibility with both current and legacy audio equipment.