SRM-D10 II Portable Electrostatic Headphone Amplifier

The Stax SRM-D10 II Portable Electrostatic Headphone Amplifier redefines mobile high-fidelity audio, serving as a compact, battery-powered “energizer” and DAC for Stax’s revered electrostatic earspeakers. This second-generation unit significantly enhances its capabilities, notably upgrading to an AKM AK4493 DAC chip for superior sound and expanding high-resolution support to PCM 384kHz/32bit and native DSD256 via its USB Type-C input. Beyond digital connectivity, the SRM-D10 II also offers a 3.5mm analog input, ensuring versatile source options. It outputs the requisite 580V DC Pro bias to drive all Stax electrostatic headphones, delivering up to 200 Vrms. The integrated rechargeable battery provides approximately 3.5 to 4.5 hours of listening, making it genuinely portable. Housed in a robust aluminum alloy chassis, this sleek amplifier weighs just 475g. The SRM-D10 II is engineered to provide Stax’s signature transparent, detailed, and clear sound with improved dynamic range and openness, allowing audiophiles to enjoy their electrostatic system on the go without compromise.