Stax SRM-D50 Headphone Amplifier

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Discover the Stax SRM-D50 Electrostatic Headphone Amplifier at Len Wallis Audio.

Elevate your audio experience with this premium pre-owned headphone amplifier.

Key Features

• High-Performance DAC: ESS ES9018 chip supports PCM 32/384 kHz and DSD 5.6 for high-resolution audio.
• Versatile Connectivity: USB, optical, coaxial digital, and RCA analogue inputs.
• Electrostatic Driver: Delivers legendary Stax sound with 580V DC bias.
• Retro VU Meter: Displays input strength for a classic aesthetic.

Inspired by the portable SRM-D10, the Stax SRM-D50 offers an elegant all-in-one design, delivering the iconic Stax earspeaker sound. With versatile inputs including USB, optical, coaxial, and RCA, the Stax SRM-D50 supports high-resolution audio up to PCM 32/384 kHz and DSD 5.6.

Visit our Sydney showroom to audition this pre-owned Stax SRM-D50 and experience its exceptional clarity with Stax headphones.

Technical Specifications

• Product Type: Pre-owned electrostatic headphone amplifier/DAC
• Condition: Great, silver finish, includes original packaging
• 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, with SR-L series)
• Input Impedance: 20kΩ (RCA)
• Bias Voltage: DC 580V
• Digital Inputs: USB (Type B) ×1, TOSLINK Optical ×1, COAX RCA ×1
• Analogue Input: RCA ×1
• DAC Support: PCM 32/384 kHz, DSD 5.6
• Power Consumption: 35W
• Operating Temperature: 0 to 35°C (less than 90% humidity, non-condensing)
• Dimensions: 192(W) × 67(H) × 268(D) mm
• Weight: 4.5 kg
• Accessories: User manual, power cable
• Manufacturing: Handcrafted in Japan by Stax