STAX SRM-D50 Desktop Energiser / DAC

£1,145.00 inc. VAT

Trade-in available

SRM-D50 by STAX Audio is a high-performance electrostatic driver and DAC (digital-to-analog converter), inspired by the smaller battery-powered SRM-D10 model.

With an elegant all-in-one design, the SRM-D50 creates a simple solution for any music lovers wishing to experience the legendary sound of STAX electrostatic earspeakers in their home.


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SKU: USV-STAX-SRMD50 Categories: , ,



The SRM-D50 from STAX Audio is a high-performance solid-state electrostatic driver and Digital-to-Analog Converter, inspired by the smaller battery-powered SRM-D10.

With an elegant all-in-one design, the SRM-D50 creates a simple solution for any music lovers to experience the legendary detailed sound of STAX electrostatic headphones.


  • Supports various digital inputs such as USB, optical, and coaxial
  • Built-in DAC supports high resolution up to PCM 32/384 KHz or DSD 5.6
  • Analogue-style VU meter displays input strength
  • 4mm thick nonmagnetic aluminium cover
  • R-core power transformer with less leakage flux


  • Frequency response: 20Hz – 40kHz (+/-3dB)
  • Rated Input Level: 130mV RMS
  • 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 used with SR-L series earspeakers)
  • 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: 0-35° (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: 9.9lbs / 4.5kg

More information



Founded in 1938, STAX brought the world's first electrostatic headphone to market in 1960 and today continues their long tradition by offering the finest products for both professional and audiophile applications.

All STAX headphones are referred to as "earspeakers" - the company states that such ultra-high fidelity devices can only be compared with the best cost-no-object loudspeakers, not other headphones. Their unique amplifiers, earspeakers and drivers are highly sought-after products, and extremely well considered by aficionados in the audio industry.

Unilet Sound & Vision are one of the oldest STAX dealers in the UK, and one of the very few official outlets for their products.

STAX | Unilet Sound & Vision

Additional information

Weight 4.5 kg
Dimensions 26.8 × 19.2 × 6.7 cm


Purchase Options

Click & Collect, Trade-In Available


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