Spectral DMC-10 All-Analog Preamp with Phono Stage, SkyFi Refurbished

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Freshly serviced Spectral DMC-10 ready for another 30 years of action.

Simple operation containing only the most critical adjustments like input volume and balance.  

This DMC-10 also includes the super desirable phono section, which is quite capable and great for simplifying your system.

Cartridge loading is selected via some internally mounted switches for ultimate flexibility in cartridge selection. 

The pictured external power supply makes the DMC-10 a no-compromise design

Built to the highest standard like all Spectral gear. Just look inside, it's an absolute work of art and our favorite brand to work on.

SkyFi Service Notes:
The DMC-10 design does not feature a power switch. The unit underwent a full electrolytic recap including the phono stage, line stage, and power supply. Quality Nichicon and Panasonic parts were selected. All four voltage regulator ICs have also been replaced.

Spectral DMC-10 - Owner's Manual

Click below to add our recommended matching cables from Kimber Kable, all brand new as SkyFi is an official Kimber dealer.

Kimber Kable - RCA Interconnects

Kimber Kable - XLR Interconnects

Kimber Kable - Power Cords

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.