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STAX SRM-driver 50

This product is no longer available for sale!

Overview

The STAX SRM-D50 is an electrostatic headphone amplifier with a built-in DAC designed to offer an exceptional and immersive listening experience. Whether you’re a passionate audiophile or an audio professional, the SRM-D50 is the perfect tool to enjoy your music with unparalleled clarity and precision.

High-Quality Amplification

The STAX SRM-D50 is equipped with high-quality amplification that ensures faithful and detailed sound reproduction. Thanks to its meticulous design and high-quality components, this headphone amplifier offers an extended frequency response and minimal distortion. You’ll be able to enjoy every nuance and subtlety of your favorite music.

384 kHz Compatible DAC

The SRM-D50 also features a built-in DAC (digital-to-analog converter) compatible with resolutions up to 384 kHz. This means you can enjoy high-resolution audio files with exceptional sound quality. Whether you’re listening to streaming music, FLAC files, or digitized vinyl, the SRM-D50 will provide an immersive and realistic listening experience.

Three Inputs for Versatile Connectivity

The STAX SRM-D50 is designed to accommodate all your connectivity needs. It is equipped with three inputs: SPDIF, Optical, and USB. You can connect your headphone amplifier to a wide range of audio sources, whether it’s your CD player, computer, or smartphone. Enjoy your favorite music with unparalleled ease and versatility.

Elegant and Compact Design

The SRM-D50 boasts an elegant and compact design that will seamlessly integrate into your audio setup. Its compact size makes it easy to place on your desk or in your existing audio system. Moreover, its high-quality finish gives it a sophisticated and modern appearance. With the SRM-D50, you’ll not only have a high-performance headphone amplifier but also an aesthetic object that will add a touch of elegance to your space.

Technical Specifications

Digital Conversion

  • 32-bit Sabre ESS9018 Digital-to-Analog Converter (DAC)
  • Asynchronous USB transmission up to 32-bit / 384 kHz with XMOS technology
  • DSD support up to DSD128

Audio Performance

  • Frequency response: 20 Hz - 40 kHz (± 3 dB)
  • Nominal input level: 130 mV RMS
  • Maximum input level: 30 V / RCA, at minimum volume
  • Maximum output voltage: 400 V RMS (1130 Vp-p)
  • Gain: 59 dB
  • Harmonic distortion: 0.025% or less / 1 kHz - 10 kHz
  • Input impedance: 20 kΩ (RCA)
  • Bias voltage: 580 V DC

Connectivity

  • 4 front-selectable inputs:
    • 1 × RCA
    • 1 × coaxial (S/PDIF)
    • 1 × optical (TOSlink)
    • 1 × USB for computer connection

Physical Characteristics

  • Mains voltage: 100-240 V AC, 50/60 Hz (depending on country)
  • Power consumption: 35 W
  • Brushed silver aluminum casing
  • Dimensions (W × H × D): 192 × 67 × 245 mm (265 mm with knob and connectors)
  • Weight: 4.5 kg

User reviews

Pascal

I bought my first Stax headphones almost 40 years ago. It was a true revelation! So much detail and no harshness in the highs. At the time, I had an interface box that plugged into the speaker outputs of an amp (SRD7). All this equipment has aged, especially the balance has become unbalanced. When I discovered that Stax was being distributed again and that digitized sound, especially in high resolution, was fully supported by the brand from the computer output to the ears, I didn't resist for long based on my past impressions. So I bought this DAC-headphone amp and a Lambda Pro SR L500 MK2 headphone, telling myself that for a rather modest budget I would treat myself to a listening experience that I would never have at an affordable price with speakers. The result lives up to my expectations. I listen to a lot of dematerialized music on Qobuz. The strengths of this setup are the superb finish and packaging of the SRM-D50, you don't dare throw away the case. The DAC is very well made with very resistant materials. The connectivity is complete. And of course the listening is superb: detailed, airy, musical and not at all aggressive. I have never heard the harpsichord so well reproduced: magnificent transients, the sound never grates, the bass is not bloated and well articulated. All the small ensembles make a strong impression in terms of presence and musicality, whether in baroque music, jazz, variety, vocal ensembles. For orchestral ensembles, I am less enthusiastic but it is always very good. A very nice purchase in any case.

Comment from March 26, 2021 — Experience from March 05, 2021

Automatically translated — Show original (French)
J'ai acheté mon premier casque stax il y a bientôt 40 ans. Ce fut une vrai découverte ! Que de détails et pas d'agressivité dans les aigus. A l'époque je disposais d'un boitier d'interface qui se branchait sur les sorties HP d'un ampli (SRD7). Tout ce matériel a vieilli, notamment la balance s'est déséquilibrée. Quand j'ai découvert que stax était à nouveau distribué et que le son numérisé, notamment en haute résolution, était pris en charge intégralement par la marque de la sortie de l'ordinateur jusqu'aux oreilles, je n'ai pas résisté longtemps fort de mes impressions passées. J'ai donc acheté ce DAC-ampli casque et un casque lambda pro SR L500 MK2 en me disant que pour un budget plutôt modeste je m'offrirai une écoute que n'aurai jamais à un prix accessible avec des enceintes. Le résultat est à la hauteur de mes attentes. J'écoute beaucoup de musique dématérialisée sur qobuz. Les points forts de cette instalation sont la finition et le packaging superbe du SRM-D50, on ose pas jeter la boite écrin. Le DAC est de très bonne facture en matériaux très résistants. La connectique est complète. Et bien sûr l'écoute est superbe : détaillée, aérée, musicale et pas du tout agressive. Je n'ai jamais entendu le clavecin aussi bien restitué : de magnifiques transitoires, le son ne ferraille jamais, les basses ne sont pas ampoulées et bien articulées. Tous les petits ensembles font forte impression en matière de présence et de musicalité que ce soit en musique baroque, jazz, variété, ensembles vocaux. Pour les ensembles orchestraux, je suis moins enthousiaste mais c'est toujours très bon. Un très bel achat en tous cas.
  • Eco-contribution included in the sale price.
  • GTIN / EAN: 4996476000902
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