The Stax SRS-2170 is a premium electrostatic headphone system that features the SRS-2170 driver unit and the SR-202 headphones. It is designed to provide high-fidelity sound reproduction and is aimed at audio enthusiasts. The SRS-2170 utilizes an electrostatic design that allows for a very fast transient response and a wide frequency range, resulting in clear and precise audio. The system is composed of a power supply that also acts as a headphone amplifier, designed specifically to drive the electrostatic headphones. Specifications for the SRS-2170 include a frequency response from 7 Hz to 41 kHz, a total harmonic distortion of less than 0.05%, and a maximum output voltage of 580V DC. The headphones themselves are lightweight, designed for comfort during long listening sessions, and feature a low impedance which allows for easy pairing with various amplification setups. The build quality is substantial, with a focus on durability and reliability over time. Overall, the Stax SRS-2170 offers an immersive listening experience, heralded for its clarity and detail across multiple genres of music.