Rockford Fosgate RFI2SW Speaker Line To Male RCA Adapter

The Rockford Fosgate RFI2SW is a speaker-line-to-male-RCA adapter designed for integrating a factory radio with a compatible aftermarket amplifier. It provides a direct connection path from high-level speaker outputs to amplifier RCA inputs that accept high-level signals. This makes it a practical option when retaining an OEM source unit rather than replacing the radio.

This adapter is intended for systems where the amplifier is designed to receive speaker-level input through its RCA jacks. It is not a line output converter and does not reduce speaker-level signal to conventional low-level RCA preamp voltage. Confirm amplifier input capability before installation.

The RFI2SW uses a two-channel interface with male RCA connectors and four speaker-level leads. Its wiring arrangement supports left and right source-unit speaker outputs for a straightforward signal connection. Proper wiring is important to protect the source unit and amplifier.

Oxygen-free copper conductors and platinum-plated connector ends are used to support corrosion resistance. The male RCA plugs also use split center pins to help maintain a secure physical connection at the amplifier. These details are focused on reliable signal-interface hardware rather than adding sound processing.

The RFI2SW fits well into OEM-radio amplifier upgrades using compatible Rockford Fosgate PRIME, PUNCH, or POWER amplifiers with high-level RCA input capability. It can be used as part of a basic two-channel integration path, while additional adapters may be needed for multi-channel systems. Follow the product advisory wiring instructions, including the required chassis connection for the RCA shield leads.

Key Features

• High-Level Signal Interface: Connects factory speaker outputs to compatible amplifier RCA inputs.
• Male RCA Plugs: Connect directly to amplifier RCA input jacks.
• Two-Channel Design: Handles left and right speaker-level signal connections.
• OFC Conductors: Oxygen-free copper construction supports corrosion resistance.
• Platinum-Plated Ends: Connector ends are designed for corrosion resistance.
• Split Center Pins: Helps the RCA plugs maintain a secure connection.

Design & Installation

The RFI2SW is a compact signal-interface adapter built with male RCA ends, oxygen-free copper conductors, platinum-plated connector ends, and split center pins. Its construction is intended for a secure, corrosion-resistant connection between factory-radio speaker wiring and a compatible amplifier input. It is an adapter rather than an active signal processor or line output converter.

Connect the radio's positive speaker outputs to the solid-color leads, which correspond to the RCA center pins. The source-unit negative speaker outputs are not connected to the RCA shields; instead, the black-striped shield leads are connected to the source-unit chassis as directed in the product advisory. Use it only with an amplifier whose RCA inputs are designed to accept high-level speaker signal.