KENWOOD STEREO September 5, 2020 by mercury VINTAGE KENWOOD RACK SYSTEM. KENWOOD KM- 209 Stereo Power Amplifier, 155 Watt’s/Channel @ 8ohm ,T.H.D. – 0.015%, Wide Dynamic Range( 5hz-200khz),S.N.R.-120db.KC-209 Stereo control amplifier, built in …