This analog audio extender transmits stereo RCA and 3.5mm signals over a single Cat5e or Cat6 Ethernet cable, reaching distances up to 1640 feet (500 meters) without requiring an external power source. The device converts analog audio inputs into a balanced signal suitable for long‑haul transmission through standard network cabling. Constructed with a compact metal housing, the unit offers sturdy build quality and reliable shielding against electromagnetic interference. The input section features both RCA left/right jacks and a 3.5mm stereo auxiliary jack, allowing connection of various audio sources such as CD players, smartphones, or mixing consoles. On the receiving end, the same jack types are provided for direct connection to amplifiers, powered speakers, or home theater systems. The extraneous power design draws a minimal electrical load from the source device, making it a passive solution that eliminates the need for wall adapters or battery replacements. This engineering choice enhances portability and simplifies installation in settings where power outlets are scarce. The unit’s operating stability is maintained across a wide temperature range, and its low‑profile enclosure fits easily behind equipment racks or in tight wall‑mount enclosures. Practical applications include distributing audio from a central source to multiple zones in a home theater, transmitting music from a church soundboard to a distant amplifier, or connecting audio gear across a large commercial space. The maximum cable length of 1640 feet is achieved with standard Cat5e/6 cabling, and the signal remains clear without noticeable degradation when using properly terminated cables. The device does not support digital audio formats like HDMI or optical, but for analog stereo signals it provides a cost‑effective and reliable extension method.

This audio extender delivers solid performance for its intended use case, with durable materials, straightforward connectivity, and a passive design that keeps operational expenses low. The affordable price point makes it an accessible choice for budget‑conscious installations requiring long‑distance analog audio transmission.