Rockford Fosgate RFIS Female RCA Coupler Pair

The Rockford Fosgate RFIS is a female-to-female RCA coupler set designed to join two RCA audio cables with male ends. It provides a straightforward way to extend an existing RCA signal run in a car audio installation without replacing the full cable. The RFIS is intended for low-level RCA audio connections between compatible source units, processors, and amplifiers.

This coupler pair is useful for installers and system builders who need to bridge a gap between two male-ended RCA interconnect cables. Rather than functioning as a signal-splitting Y-adapter, each RFIS coupler creates a direct female-to-female connection. It is a practical accessory for routing or extending left/right RCA signal paths where compatible cables are already in place.

Because the RFIS is a passive connection accessory, it does not add amplification, equalization, or audio processing. Its role is to maintain a physical RCA connection between two male connectors. System sound character and output remain dependent on the connected source, signal cables, and audio equipment.

Rockford Fosgate equips the RFIS with platinum-plated RCA connection ends to help resist corrosion. The couplers also use high-quality PVC molded ends for a finished, durable connection point. This construction is suited to clean, serviceable audio-cable extensions in vehicle installations.

The RFIS comes as a pair for two-channel RCA use, making it appropriate for stereo left/right interconnect runs. It can be used with compatible RCA cables in car audio and other audio/video signal applications. For installations that need to divide one signal into multiple inputs, use a purpose-built RCA Y-adapter instead.

Key Features

• Female RCA Couplers: Joins two RCA cables with male ends.
• Two-Channel Pair: Supports typical left and right RCA runs.
• Platinum-Plated Connections: Helps provide corrosion-resistant RCA contact surfaces.
• PVC Molded Ends: Provides a finished, durable connector housing.
• Passive Signal Connection: Adds no amplification or audio processing.
• Universal RCA Use: Works with compatible male-ended RCA interconnect cables.

Design & Installation

The RFIS uses compact barrel-style female RCA connections with platinum-plated contact ends and PVC molded housings. Its simple inline design is made to join compatible male RCA plugs without adding a long cable section. The pair format suits standard stereo signal wiring with separate left and right channels.

Connect one male RCA plug from each cable to opposite ends of an RFIS coupler, using one coupler per channel. Confirm that the cables use standard RCA male connectors and keep left/right channels matched throughout the run. This product extends or joins RCA cables; it is not a one-to-two splitter and does not convert speaker-level wiring to RCA.