SAT's remarkable XD1 record-player system

Let’s begin by discussing what SAT’s XD1 Record Player System is not: It is not a Technics SP-10R in a sci-fi–inspired plinth—although the XD1’s engine does begin life as the SP-10R’s basic drive system, which is stripped down to a handful of essential components, reimagined, reengineered, and rebuilt to much higher mechanical standards.

- MICHAEL FREMER

Marc Gomez, SAT’s designer, holds a master’s degree in mechanical engineering and materials science. Before dedicating himself to creating the SAT tonearm—by far the finest sounding and performing arm I’ve yet encountered (as unanimously corroborated by Stereophile readers who bought this very expensive product unheard as a result of my review)—he was involved in a variety of projects for, among others, the European Space Agency and various European automobile manufacturers.

Even if it’s not broken, why not fix it?

The XD1 is a compact disc player, though not a player of compact discs.

Its sculpted, satiny beauty goes beyond skin deep. The XD1’s metalwork, and that of the SAT tonearms, is machined at a Swedish workshop that makes parts for Hasselblad cameras.

Gomez says that in designing the XD1, he focused on four main areas: isolation from external disturbances, speed stability, rigidity, and vacuum hold-down.

When Mr. Gomez began conceptualizing his design a decade ago, it was immediately clear to him, he says, that direct drive was the best way to spin a platter. His reasons were these: A direct-drive motor’s rotational speed is just 33.3, 45, or 78rpm compared to several hundred rpm’s required in the typical belt-drive design, and with direct drive the spindle is not laterally loaded as it is in belt-drive designs, so it receives only torque, not an off-center force. The amount of torque available means the ’table is less likely to drag during heavily modulated passages, something direct-drive advocates claim happens with most belt designs.