The SRM-D50 is a high-performance electrostatic driver and Digital-to-Analog Converter, inspired by the battery-powered SRM-D10. With an elegant all-in-one design, the D50 creates a simple solution for any music lovers to experience the legendary sound of Stax earspeakers.

• Supports various digital inputs such as USB, optical, and coaxial digital input

• Built-in DAC supports high resolution up to PCM 32/384 KHz or DSD 5.6

• VU meter displays input strength

• 4 mm thick nonmagnetic aluminum cover.

• R core power transformer with less leakage flux

• Frequency response: 20Hz - 40kHz (+/-3dB)

• Rated Input Level: 130mV r.m.s

• Maximum Input Level: 30V/ RCA, at minimum volume

• Maximum Output Voltage: 400V RMS (1130Vp-p)

• Gain: 59 dB

• Harmonic distortion: 0.025% or less/1kHz-10kHz /When use with SR-L series

• Input Impedance: 20kΩ (RCA)

• Bias Voltage: DC 580V

• Digital Input：USB (type B) ×1、TOSLINK Optical ×1、COAX RCA ×1

• Analog input：RCA ×1

• Mains voltage: AC 110V / 60Hz

• Power Consumption: 35W

• Operating temperature: 0 to 35 degrees (Celsius) (less than 90% humidity, non condensing)

• Dimension: 7.55(W) x 2.63(H) x 10.55(D) inches, 192(W)×67(H)×268(D) mm

• Weight: 9.9 lbs / 4.5 kgWoo Audio is an authorized reseller

• [Blemish] STAX SRM-D50 Amplifier x 1

• Owner's manual