RCA 50 Ft. 18/2 Stranded Speaker Wire is an 18-gauge speaker wire designed to connect your speakers to amplifiers or receivers efficiently, making it for installing surround sound audio systems. Its insulated jacket ensures uninterrupted signal transfer, providing clear and consistent audio performance. The wire features polarity identification to correct speaker phasing, delivering high-quality sound from your home theater equipment with ease and reliability. Model Number: AH1850R1