STAX SRM-D50

The STAX SRM-D50 is STAX's desktop all-in-one electrostatic DAC and driver, taking the concept of the portable SRM-D10 and expanding it into a full desktop unit with USB, optical, and coaxial digital inputs, a built-in DAC supporting PCM 32-bit/384kHz and DSD5.6MHz, a 400V maximum output, and the distinctive VU meter that gives it a warm visual character alongside its technical capability.

Type and Technology

Desktop electrostatic DAC and driver. Built-in DAC supporting PCM 32-bit/384kHz and DSD5.6MHz. Digital inputs: USB Type-B, TOSLINK optical, coaxial RCA. Analog RCA input. STAX PRO bias output x1. 400V RMS maximum output (1130Vp-p). 59dB gain. VU meter for real-time input level monitoring. R-core power transformer with lower leakage flux for reduced interference. 4mm thick non-magnetic aluminum cover. 35W power consumption.

Sound Character

The SRM-D50 brings a natural, smooth, and well-extended electrostatic presentation for listeners who want a single box solution for desktop STAX listening. The R-core power transformer and non-magnetic aluminum construction contribute to a quieter background than typical switching-supply-based all-in-one devices, and the 400V maximum output is sufficient to drive the Lambda series well.

Build and Finish

Compact at 192 x 67 x 268mm and 4.5kg. Non-magnetic aluminum construction. VU meters on the front panel. Analog RCA input for use without a separate DAC.

Best For

Desktop listeners who want a clean, simple all-in-one STAX system without a separate DAC, connecting directly from a computer or streaming device to the STAX earspeakers in one unit.

Specifications