Stax SR-L500 MK2
Stax electrostatic headphones with a bespoke diaphragm and fixed electrodes, designed for balanced, refined listening in a dedicated hi-fi system.
Description
The SR-L500 MK2 is an electrostatic headphone from Stax, a technology based on a thin-film diaphragm placed between two fixed electrodes, rather than a conventional dynamic driver. This particular operating principle requires a dedicated electrostatic amplifier, but it paves the way for a sound renowned for its finesse and transparency.
The bespoke diaphragm and robust fixed electrodes of this model are designed to deliver a carefully balanced tonal signature: extended bass response, fine and detailed treble, and a smooth midrange, without harshness or hardness at the top of the spectrum. This sonic signature aims for prolonged listening without listening fatigue.
The headband incorporates a sliding ratchet mechanism offering ten adjustment positions, allowing precise adjustment of the ear pad fit according to the user's build. The soft synthetic leather cushions contribute to comfort in contact with the skin while also helping preserve the purity of the reproduced sound.
These headphones are aimed at a discerning listener already equipped with a hi-fi system dedicated to headphone listening, in particular an electrostatic amplifier compatible with Stax technology. They are suited to seated, settled listening in a quiet environment, rather than portable or mobile use.
What to check before buying used
The electrostatic diaphragm and fixed electrodes should be checked by ear across the entire sound range, as crackling or a localised drop in level indicates a fouled electrode or a damaged diaphragm, an irreversible fault on this type of transducer. The headband's sliding ratchet mechanism should move smoothly through its ten positions without play or sticking. The synthetic leather cushions, in direct contact with the skin, often show cracking or sagging depending on prior use, which affects both comfort and acoustic seal.
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