Stax SRM-D50

Stax SRM-D10 Headphone Amplifier Features
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

Specification
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 kg