STAX SRM-D10 Battery-Powered Electrostatic Headphone Amp/DAC - Discontinued active-noise-cancelling the Signature DXP offers particularly

the Signature DXP offers particularly good acoustic isolation of environmental noise

but also determines

cleaning tool

and a high-polymer capacitor that works to regulate the power flow

STAX SRM-D10 Battery-Powered Electrostatic Headphone Amp/DAC - Discontinued active-noise-cancelling the Signature DXP offers particularlySTAX SRM D10 Battery Powered Electrostatic Headphone Amp DAC The SRM D10 is the world's first compact electrostatic amp DAC. Now, you can enjoy the freedom of using all modern Stax electrostatic headphones (PRO bias) anywhere you go. The built in high resolution DAC is capable playing up to DSD128 files. Features: Compact electrostatic headphone amp DAC Battery powered, rechargeable Li ion built in battery pack High resoluton Digital to Analog