This is a modified vacuum tube amplifier. The pre-amplifier kit is removed. Only the power amplifier with pure vacuum tubes is retained. The power amplifier is almost the original state. A 12AU7 and a 12AX7 are believed to be original but can not provide a guarantee, the input end only retains a three-dimensional RCA input terminal, the output can be connected to 4, 8, 16 ohm speakers. The function of the amplifier is normal. The output transformer has a slight vibration sound but not through the speaker. The output sound is clean, sweet, and warm. Panel is cedar without polishing or paint. The item “McIntosh MA-230 (1963-1966) AWESOME Vintage Vacuum Tube Amplifier Read AS IS” is in sale since Sunday, April 5, 2020. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “jeff-il” and is located in Irvine, California. This item can be shipped to United States.

• Type: Tube Amplifier
• Brand: McIntosh

Up for sale is a vintage McIntosh amplifier. It came from an estate. Unfortunately it was disconnected from the speakers and receiver that were there. We do not have a way to test it fully so listed it under parts. It powers on and as we have a picture of the tubes lite. We invite you to examine it if you are in the local area. The item “McIntosh MA-230 Vintage Vacuum Tube Amplifier Amp” is in sale since Saturday, May 1, 2021. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “something-of-value” and is located in Downingtown, Pennsylvania. This item can be shipped to United States.

• Brand: McIntosh
• Type: Tube Amplifier
• Model: MA-230
• MPN: MA-230

Up for sale is a vintage McIntosh amplifier. It came from an estate. Unfortunately it was disconnected from the speakers and receiver that were there. We do not have a way to test it fully so listed it under parts. It powers on and as we have a picture of the tubes lite. We invite you to examine it if you are in the local area. The item “McIntosh MA-230 Vintage Vacuum Tube Amplifier Amp” is in sale since Sunday, April 11, 2021. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “something-of-value” and is located in Downingtown, Pennsylvania. This item can be shipped to United States.

• Brand: McIntosh
• Type: Tube Amplifier
• Model: MA-230
• MPN: MA-230

McIntosh MA230 Tube Amplifier. Unit is in excellent condition and perfect working order. Please be aware that internal components have been documented. Dimensions / Weight: 16 x 5-7/16 x 14-1/2 inches /. Power output: 30 watts per channel into 8 (stereo). Frequency response: 15Hz to 70kHz. Total harmonic distortion: 0.5%. 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. Package ships from Florida, US. Internal components have been documented. Please, contact me if you have any questions. The item “McIntosh MA-230 Vintage Tube Amplifier” is in sale since Tuesday, November 07, 2017. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “signal-to-noise” and is located in Miami, Florida. This item can be shipped to United States.

• Brand: McIntosh