(1). Application: Using to connect power amplifier and loudspeaker equipment, broadcast system to transmit audio frequency signal, which is magnified by power amplifier. (2). Characteristic: It can be matched with sound equipment of over high frequency and over low frequency to reach a perfect sound effect, keeping stable for the leaving rhyme and strength of diapason and music. It’s fine and diversified in form. (3). Instructions: a) Multiple strands of copper line twisted as conductor b) Transparent PVC insulation / Red and Black PVC Insulation / Black PVC Insulation) c) Rated voltage: Uo/U is 300/300V d) Keeping working temperature under 70°C for long-range operation http://www.permantcable.com