Available next week

The STAX SRM-D10 II electrostatic headphone amplifier redefines audio excellence by combining cutting-edge technology and superior craftsmanship. Designed to provide audiophiles and professionals with the ultimate sound experience, the SRM-D10 II boasts a range of exceptional features.

Available on backorder

STAX Ltd, leading manufacturer of electrostatic audio products, is pleased to introduce the SRM-D10 II portable amplifier, available for sale from the first quarter of 2024. Featuring significant updates from the original SRM-D10, the SRM-D10 II continues to elevate listening experiences for STAX fans worldwide.

The SRM-D10 II is a result of STAX’s commitment to pushing the boundaries of audio technology. It incorporates cutting-edge features, meticulously crafted components, and a sleek design to provide audiophiles and professionals with a listening experience like no other.

“As we continue to celebrate STAX’ 85th anniversary, it is a timely reminder of how far the brand has come in its pursuit of audio excellence. The SRM-D10 II showcases an upgraded decoder chip from its predecessor, the AKM4493 for an improved audio processing and enhanced sound performance,” said Douglas Ip, Head of Sales & Marketing, STAX International.

“This release shows our dedication to improving STAX transportability as well, so that the STAX listener has the option to carry their in-ears or earspeakers with a quality portable amp. Ideally, this new iteration of the STAX portable amplifier will become a part of their audiophile toolbox.”

STAX SRM-D10 II Key Features:

  1. Enhanced Sound Quality: The SRM-D10 II utilizes hardware decoding and high-quality audio capacitors to deliver unparalleled sound quality, ensuring every note is crisp and every detail is vivid.
  2. DSD and PCM Support: With support for DSD sampling rates up to DSD256 and PCM sampling rates up to 384kHz/32bit, the SRM-D10 II can faithfully reproduce high-resolution audio formats, preserving the artist’s original intention.
  1. High-Quality Power Amplifier: The SRM-D10 II is equipped with a high-quality power amplifier, providing outstanding performance and remarkable power, allowing you to experience music in its purest form.
  2. High Voltage Output: A robust DC 580V DC bias enhances the amplifier’s output, resulting in a more dynamic and powerful soundstage.
  3. Rugged Aluminium Alloy Shell: The aluminum alloy shell not only exudes a sleek, modern design but also offers higher strength and corrosion resistance, ensuring the SRM-D10 II is built to last.
  4. Versatile Connectivity: The SRM-D10 II supports both USB digital and 3.5mm analog audio inputs, offering flexibility in connecting to a wide range of devices.
  5. Compatibility: Designed to complement all STAX PRO-type headphones, the SRM-D10 II ensures that you can enjoy the full potential of your earspeakers.


  • Rated input level: 230mV (100V output)
  • Maximum input level: 10V (minimum volume in Line In input)
  • Gain: 53dB (450 times)
  • Harmonic distortion: ≤0.025% / 1kHz-10kHz
  • Input impedance: 10KΩ (Line In input)
  • Maximum output voltage: 200Vr.m.s / 100Hz-10kHz
  • Supply voltage: DC 5V/9V/12V/15V
  • Power consumption: 6.4W (USB input) 5W (Line In input)
  • DSD Support: Up to DSD256
  • PCM Support: Up to 384kHz/32bit
  • Amplifier: High-Quality Power Amplifier
  • Output Bias: DC 580V
  • Shell Material: Aluminium Alloy
  • Input Options: USB Type-C,  3.5mm Analog
  • Compatibility: Suitable for all STAX PRO-type headphones

D10 II vs. D10: What Sets the New Standard

Here’s a closer look at the key differences that set the D10 II apart:

1. Enhanced Decoder Chip: The D10 II features an upgraded decoder chip, now utilizing AKM’s 4493, a departure from the previous ESS’s 9018. This change promises improved audio processing and enhanced sound quality.

2. Native DSD Support: With the D10 II, the USB input now supports native DSD hardware decoding, providing a direct pathway for DSD audio streams. In contrast, the original D10 could only utilize DSD over PCM (DOP). Note: On Mac iOS systems, DOP output remains the standard due to system limitations.

3. Expanded PCM Support: The D10 II amplifies its capabilities by offering USB output PCM support for 384kHz/32bit, a significant leap from the original D10’s limit of 192kHz/24bit. This enables you to enjoy high-resolution audio in even greater detail.

4. Improved Components: In the D10 II, a considerable number of resistors and capacitors that have a direct impact on sound quality have been replaced with Samsung components. Furthermore, both tubes and capacitors have undergone upgrades, culminating in a more refined and immersive listening experience.

5. Clarity and Brightness: One of the primary goals with the D10 II was to address the issue of sound dimming experienced over time in the older version. The result is a clearer and brighter sound profile, with subtle adjustments that ensure a consistently vibrant audio output.

The D10 II takes a remarkable product and makes it even better, reflecting STAX’s unwavering commitment to delivering cutting-edge audio solutions to its discerning audience. Experience the future of audio with the D10 II and rediscover your music like never before.

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