Audio cable Procab CLA711/20 3.5 mm stereo jack (male) to 2×RCA, 20 m

Procab CLA711/20 is a 20‑metre audio cable with a 3.5 mm stereo male jack to two RCA connectors designed to transmit stereo line‑level signals between portable devices and professional or consumer audio equipment. The cable provides an unbalanced analog connection suitable for linking smartphones, tablets or laptops to amplifiers, mixers, audio interfaces or powered speakers with RCA inputs. Its length is intended for stage, studio and domestic setups where extended reach is required without relying on adapters or multiple short leads.

Advantages

The cable combines a compact 3.5 mm stereo plug with twin RCA terminations to support left/right stereo channels. Its 20 m length enables flexible placement of source devices and equipment across larger rooms or performance areas. The construction is optimized for reliable signal transfer at line level, with connectors that fit standard RCA sockets and a 3.5 mm plug compatible with most portable audio outputs. The single continuous run reduces the need for junctions that can introduce noise or connection issues.

Suitable for

• Connecting laptops, phones or tablets to stereo amplifiers and powered speakers
• Feeding mixers or audio interfaces from portable audio sources
• Stage and studio setups requiring long analog runs
• Home audio systems where an extended, simple stereo connection is needed

Key specifications

• Cable length: 20 metres
• Input connector: 3.5 mm stereo male jack (TRS)
• Output connectors: 2 × RCA (male), stereo L/R
• Signal type: Unbalanced analog line‑level stereo
• Typical use: Audio interconnect between portable devices and RCA‑equipped equipment

How to use

Insert the 3.5 mm stereo plug into the headphone or line output of the source device, ensuring a firm connection. Plug the RCA connectors into the corresponding left and right RCA inputs on the amplifier, mixer or audio interface, matching channel colours where present. Route the cable to avoid tight bends and reduce exposure to high‑power electrical equipment to minimise potential interference. For best results set source and destination devices to appropriate line‑level output and input settings.

Usage recommendations

Use this cable for short‑to‑long fixed analogue connections rather than temporary patching; avoid running it parallel to mains power cables for long distances to limit hum. When coiling for storage, use loose loops to prevent kinks and preserve cable life.