Bias is set at a perfect. The 230 is has a Solid State preamp with a 7591 tube amp. All USA tubes, 7591 tubes are Sylvania brand and in excellent condition.
Comes with aftermarket wood cabinet. The cabinet looks like an original McIntosh but it is a very good reproduction.Glass is very good with one minor chip near the top rail above in the center above the M in the word McIntosh (see 3rd Photo) The chip is hard too see but I was able to capture it in the sun light. There are a few small bubbles in the glass, no cracks or breaks in the glass. The Chrome is very good with only a few inperfections. Front Red panel light works, No unwanted noises on any controls. All inputs work, Excellent cosmetic condition. I do not have the original McIntosh PanLocs for this cabinet. The 230 does not use panlocs, just a bracket that screws into the back of the chassis. Great price on an outstanding sounding and looking McIntosh!! Amp will be double boxed.
The item "1964 MCINTOSH MA 230 STEREO INTEGRATED TUBE AMP EXCELLENT" is in sale since Monday, February 17, 2020. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps". The seller is "torrmark" and is located in Torrance, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, South africa, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, New Zealand, Singapore, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Croatia, Malaysia, Barbados, Bermuda, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.