The Stax SRM-D10 is a compact electrostatic headphone amplifier and digital-to-analog converter (DAC) designed for audiophiles seeking high-quality portable audio solutions. It allows the use of Stax electrostatic headphones anywhere, supported by a built-in rechargeable lithium-ion battery. The high-resolution DAC features capability for DSD128 playback, ensuring exceptional sound quality. Key functionalities include user-selectable input sources for line-in and USB DAC, fitted within a robust all-aluminum chassis. The amplifier supports a 5-pin PRO bias Stax earspeaker output, and offers various input options, including MicroUSB digital input and a 3.5mm analog input. The frequency response ranges from 20Hz to 40KHz, with a very low harmonic distortion of less than 0.025% between 1KHz and 10KHz, making it suitable for audiophile-grade listening. With a maximum output voltage of 200Vr.m.s across a range of frequencies, the device is engineered to handle demanding headphones effortlessly. The build quality features a sleek design with a well-thought-out user interface for ease of operation. Additionally, the device’s battery life provides approximately 4-5 hours of usage depending on the input mode. Its compact dimensions and weight make it a convenient option for both desktop and portable use.
