Rare Vintage McIntosh Ma 230 Tube Integrated Amplifier - Fully Serviced. Rare vintage McIntosh MA 230 tube integrated amplifier - fully serviced, working great. See photos for more details.Specifications: Power output: 30 watts per channel into 8 (stereo) Frequency response: 15Hz to 70kHz Total harmonic distortion: 0.5% Damping factor: 10 Input sensitivity: 1.5mV (MM), 250mV (line) Signal to noise ratio: 60dB (MM), 75dB (line) Speaker load impedance: 4 to 16 Semiconductors: 8 x 2N2926, 4 x 11BQ101 Valve complement: 4 x 7591, 2 x 12AU7, 1 x 12AX7 Dimensions: 16 x 5-7/16 x 14-1/2 inches Weight: 43lbs Finish: anodized gold and black front panel Year: 1963. The item "Rare Vintage McIntosh Ma 230 Tube Integrated Amplifier Fully Serviced" is in sale since Monday, August 5, 2019. This item is in the category "Consumer Electronics\TV, Video & Home Audio\Home Audio\Receivers & Amplifiers\Amplifiers & Preamps". The seller is "8ten1944" and is located in Cass City, Michigan. This item can be shipped to United States.