The Stax SRM-353X is an electrostatic headphone amplifier designed to provide optimal performance for Stax electrostatic headphones. It features a sleek and modern design that enhances its usability and aesthetic appeal. The amplifier is known for its low noise floor and wide frequency response, which allows it to deliver clean audio reproduction with minimal distortion. It operates in a Class A configuration, ensuring that the audio signal remains stable and true to the original sound source. Additionally, the SRM-353X supports both standard and bias voltage for improved versatility. The unit's input options generally include both line-level RCA inputs, providing compatibility with various audio sources. The built-in volume control permits fine adjustments for the listening experience. The amplifier is compact and lightweight, which makes it suitable for both home and studio use. It is also equipped with protection circuitry to safeguard against short-circuits and overloading, enhancing longevity.