Features: Convert the high-levels signals from the power amplifier's speakers output port into a line output or microphone-levels signals. It uses a permalloy isolation transform internally, which delivers excellent frequency response and antiinterference performances. The converted low-levels line output signals can be connecting to the line input interfaces of active subwoofers, mixers, power amplifiers, or other music devices. The converted low-levels microphone output signals can be connecting to the microphone input interfaces of mixers, sound cards, or other devices. durability metal housing encases professional isolation components that maintain 40Hz-20kHz frequency response while preventing ground loop hums and electrical noise distortion. Specifications: Component:Metal Size:Approx.72x70x25mm/2.83x2.76x0.98inch Input Interfaces: Screw plug-in terminals block Line Output Interfaces: phono interfaces Microphone Output Interfaces: 3.5mm Frequency response: 40HZ-20KHZ Input signals voltages ranges: 4Ω/1W, 8Ω/0.5W (2V) to 4Ω/100W, 8Ω/50W (20V) Line Output: Adjustable from -7dB to -33dB Microphone Output: Adjustable from -28dB to -43dB Microphone Output: Adjustable from -28dB to -43dB Package Includes: 1pc speakers levels signals to phono Converter note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.