Check the listing for details. 6-Channel HIGH To Low Level Converter with summing function HIGH SOUND QUALITY. Color: Black, Condition: New. Listed at 99.24 USD. The signal converters from HiFonics impress with their absolutely brilliant sound properties. The result is no coincidence, so the developers attached great importance to excellent technical data right from the conception phase. And they can really be seen and heard: sensationally high signal-to-noise ratios of 115-121 dB with very low distortion factors of 0.001% at the same time. They are designed for the connection to conventional car radios that deliver up to 50 watts RMS per channel into 2 ohms. As a further special feature, the multi-channel converters have a summing function on board. This circuit is a "must have" for many new vehicles if the music signal cannot be tapped "in one go", but the frequency ranges for the factory-installed speakers have been electrically separated. A con.