AK-370 power amplifier, featuring RCA input and speaker output, is compact and high-performance. I purchased this but am selling it because I'm buying another amplifier. It worked when I checked it. Includes power supply, box, and instruction manual (English). Please make sure to firmly insert the audio cables into the back ⚠️. I'm selling this to someone who isn't particular about sound quality. - Model: AK-370 - Type: Power Amplifier - Input Terminals: RCA terminals - Output Terminals: Speaker terminals - Power Adapter: Included Thank you for looking.