The Stax SR-Lambda Spirit is an electrostatic headphone model developed by Stax, a manufacturer specializing in electrostatic audio equipment. This model features a lightweight design, primarily constructed with a combination of plastic and metal, ensuring comfort during prolonged use. The headphones leverage a unique drive mechanism that allows for high fidelity audio reproduction, presenting an expansive soundstage and excellent transient response. They are capable of reproducing a wide frequency range, typically extending from the low end up to 40 kHz, making them suitable for a variety of listening purposes, including classical music and intricate soundscapes. The impedance of the SR-Lambda Spirit is approximately 145 kΩ, which means they require a specialized electrostatic headphone amplifier to deliver optimal performance. These headphones are particularly praised for their clarity, detail retrieval, and ability to handle dynamic shifts in music seamlessly. Additionally, the ear cups are equipped with plush padding to enhance comfort and passive noise isolation.
