Description: Used for host computers without a low frequency (RCA) output (such as cassette reader/card reader/CD/VCD/DVD, etc.) to convert the horn high frequency output to a low frequency (RCA) output to a car power amplifier or subwoofer. Convert high-frequency output to low-frequency output, the true channel separation. The input sensitivity is adjustable. 2-ch Hi/Lo level converter level adjustment controlled Ground loop isolation?Signal noise elimination Specification: Max input :30watts Output adjustment:50% Attenuation/ch : 10-80dB Dimension:99(D)x46(w)x27(H)mm Package Includes: 1 Piece high to lever Converter