The Stax SRA-4S is a specialized amplifier designed for use with electrostatic headphones. It provides a robust performance, offering the necessary power and voltage to drive Stax electrostatic models effectively. The amplifier operates in a class A configuration, which is known for its efficiency and sound quality. It features a sleek design with a minimalist interface, including volume controls and input selectors. The SRA-4S is equipped with a unique transformerless output, ensuring the purity of the audio signal and maintaining the integrity of the sound profile. The unit is compatible with a variety of Stax electrostatic headphones, making it a versatile choice for audiophiles who favor this type of headphone technology. The amplifier comes with a sturdy chassis, designed to minimize vibration and interference, ensuring that the audio output remains clean and distortion-free. In terms of specifications, it generally includes a frequency response of 10 Hz to 40 kHz, with an output impedance tailored to suit electrostatic headphones.
