4 x 25 Watt Trunk Mount Amplifier (120-1976) Features Faxback Doc. # 16983 Your Radio Shack 4 X 25 Watt Trunk Mount Amplifier is designed to produce a total of 100 watts to give added punch and power to your vehicle's existing stereo system. The amplifier produces up to 25 watts per channel of clean, powerful sound at all audio frequencies with minimum distortion. And, you can connect line-level as well as speaker outputs to the amplifier. Its features include: 14k Gold-Plated Noise-Isolated - let you connect low-level (pre-amplifier) Line-Level Input Jacks signal inputs to match your autosound system's output for the best high-fidelity performance. 14k Gold-Plated Speaker - designed for low impedance, high Terminals conductivity, and minimum corrosion to provide the highest signal transfer and lowest sound distortion. Input Level Control - lets you adjust the level (high or low) of the audio signals that enter the amplifier. Automatic Power Switching - automatically turns on/off the amplifier when you turn on/off your autosound system. Short Circuit Protection - distorts sound if any output channel shorts to protect the amplifier from damage. Power Indicator - lights when power is on. NOTE: If the connectors from your autosound system are not compatible with the amplifier's connectors, your local Radio Shack store sells adapter harnesses for many vehicles.