Philmore 86-1056 Stereo Power Amplifier, 4 A Output, 17 -Pin

Originally designed for hi-end automotive stereo applications, this is a top quality product for any hi-fidelity use. The case is a 17 lead single in-line (every other pin bent to DIL) plastic power package. The circuit contains four 11 W single-ended or two 22 W bridge amplifiers. It features low harmonic distortion, excellent ripple rejection and no plop with power on/off. Among the many extras are Mute facility, ESD protection, reverse polarity safe and thermal overload shut down. The operation range is from six to eighteen volts but typical is 14.4 VDC. The circuit requires very few external components. Use with four ohm speakers is recommended, circuit diagram included.