Luxman M-300 Vintage Solid State Amplifier - Serviced Plus Refinished Cabinet - Gorgeous!

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This is the vintage Luxman M-300 "DC Stereo Power Amplifier" produced from 1981 through 1982. The cabinet is in simply amazing condition, even with refinishing, considering it's nearly 40 years old.

And the M-300 is, literally, two amplifiers in one.

With the flick of a switch, you can listen to the ultra-low distortion of a pure class A amplifier with 40 watts per channel.

Or, if you require more dynamic headroom, the M-300 can be operated in Class AB with 150 Watts per channel.

Please see our photos for full specifications.

The SkyFi Testing Process for Amplifiers (Solid State):

We start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale sings of bulging or leaking, resistors are checked for signs of overheating or cracking, and transistors are checked for signs of stress or damage.

We then power up the unit carefully and run a simple 1k sine wave while monitoring the output on an oscilloscope for signs of distortion or noise. Finally, we run the amplifier to its full rated power into the appropriate resistive load provided by our Sencore amplifier tester. If there is an issue, it will usually be noticeable at this point. If everything reads clean, we will often test for THD (Total Harmonic Distortion) measured by our Keithley distortion meter, and compare it against the original manufacturers specifications. The amplifier then remains powered on to "burn in" on our test bench for a few hours to make sure there are no heat related issues. If there are balanced inputs available they will be also be tested.

Final testing involves pushing actual music thorough the amplifier. We've learned over time that some issues are only noticeable to a trained ear while listening to familiar source material. Our test bench has reference vintage KEF speakers that we're very familiar with which quickly reveal any discrepancies. Some amplifiers will then move into our listening room where they are tested with our in-house reference speakers of choice.

Please click here for detailed specifics regarding our specialized packing process that separates us from the rest.