Japan

Stax is a Japanese brand known for producing high-quality electrostatic headphones and earphones.

Stax

The Stax SRM-717 is a solid-state headphone amplifier designed specifically for electrostatic headphones. It is engineered to deliver high-quality audio reproduction with exceptional speed and clarity. Featuring a fully DC-coupled signal path, the SRM-717 eliminates the use of capacitors in audio pathways, resulting in a more direct and transparent sound. The architecture is built primarily on a current domain amplification design, which facilitates a rapid response and extended frequency range. The amplifier's first stage functions as a voltage-controlled current sink, with a subsequent stage transitioning to a current-controlled voltage source, culminating in a constant current sink in the last stage. This design approach reduces the Miller Effect, thus enhancing high-frequency performance. With a low output impedance of approximately 25 ohms, it is well-suited to drive electrostatic headphones, and it achieves a total harmonic distortion of under 0.02%. The amplifier can handle voltages up to 800 volts peak-to-peak, allowing for loud output levels suitable for electrostatic models like the Omega series. With its compact and robust build, the SRM-717 is appreciated for its reliability and sound fidelity, making it a compelling choice for serious audio enthusiasts looking to drive advanced headphone technology.

SRM-717

by Stax

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