McIntosh MX110 Tube Tuner Preamp - Restored to Perfection

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One of the cleanest MX110's we've seen to date. Stunning to look at and great sounding too. 

Restored in-house and working as it should.

This example has a Z series serial number indicating it was the Improved later production model.

As shown in our photos it does have stickers on the back from the "McIntosh Performance Clinic" indicating the previous owner took pride in his equipment.

The chrome is as good as it gets with only the slightest sings of pitting.

A matching wood cabinet is available for extra $300.

Please see our photos or the manual linked below for full specifications.

McIntosh MX110 Manual

SkyFi Restoration Notes:
• Power supply completely rebuilt with modern components
• Chassis and Faceplate detailed and polished
• New lamps
• All controls serviced

And here's a walkthrough video from our YouTube channel from a previous MX110 listing 

The SkyFi Testing Process for Preamplifiers:

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. Special attention is paid to the power supply which is the most common source of failure for preamps. We then power up the unit and run a simple 1k sine wave while monitoring the low voltage output on an oscilloscope for signs of distortion or noise to get a baseline.

At this point we will lubricate and clean all switches and potentiometers (that are not sealed) with a high quality contact cleaner, and then re-test all functions for any signs of noise or scratching.

Final testing involves putting actual music through the preamplifier We have learned over time that some issues are only noticeable to a trained ear while listening to a familiar source material. Our test bench has reference vintage KEF speakers that we are super familiar with which will quickly reveal any discrepancies. Some preamps will then move into the listening room where they will be tested with our in-house reference system.

The SkyFi Testing Process for Tuners:

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 tubes are inspected for signs of stress overheating or cracking.

Then the tuner is thoroughly tested in our lab utilizing our professional Sencore SG80 FM Generator, which allows us to generate a reference FM signal of any frequency and amplitude, and then measure the resulting tuner output on our Sencore PR81 or oscilloscope. 

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