Koss ESP950 Recensione | 93 Dati a confronto

In this CNET review, Steve Guttenberg evaluates the Koss ESP-950, a classic electrostatic headphone bundle originally debuted in 1990 and manufactured in Milwaukee, Wisconsin. Priced at $1,000, this open-back, over-the-ear system comes permanently bundled with its own matching E-90 amplifier and cannot be plugged into standard 3.5mm or 6.3mm headphone jacks. The prominent pros highlighted in the review are its remarkably open, transparent, and spacious soundstage that makes audio feel lifelike and less "stuck inside the head" compared to traditional designs. Guttenberg heavily praises its exceptionally realistic midrange tonality, lightweight build which remains highly comfortable for extended listening sessions, and a very rare limited lifetime warranty that covers repairs or replacements for the original owner. Conversely, the review notes several design and functional cons. The chassis of both the headphones and the E-90 amp are primarily constructed of plastic, giving them a cheap aesthetic that lacks the solid, premium texture of competitive high-end audiophile gear. The amplifier itself features deeply recessed RCA inputs that reject thick connector barrels, alongside a split front volume knob that forces users to meticulously re-balance...

In a November 2016 Stereophile review, Herb Reichert highly praises the Koss ESP/950 electrostatic headphones for delivering a profoundly musical, emotionally connective experience with a standout, tactile midrange. The lightweight (10 oz) design offers exceptional comfort, backed by a strong, unconditional lifetime guarantee. While the midband excels, notable cons include weak, lean bass and a rolled-off top octave compared to modern planar-magnetic alternatives. Despite these frequency extreme limitations, the system is recommended for its lifelike, addictive midrange performance.

The Koss ESP-950 Electrostatic Stereophone provides an immersive, mid-focused sound with a spacious soundstage, offering a non-fatiguing, comfortable experience due to its lightweight, open-back design. A major advantage is Koss’s lifetime, no-questions-asked warranty, ensuring hassle-free repair support. However, the system is hindered by a flimsy, predominantly plastic build that lacks a premium feel. Performance issues include a high dependency on a perfect seal, mediocre stock earpads, the potential for driver squeal, and an energizer featuring inconvenient separate volume controls.

The Koss ESP-950 electrostatic system offers an exceptionally natural, smooth, and effortless sound profile, featuring high transparency, fast transients, and excellent long-term comfort. It provides high-value entry into electrostatic audio, backed by a strong lifetime warranty, and avoids harsh treble, making it very easy on the ears. However, the system is hindered by a plasticky, budget-feeling build quality and noticeable frequency roll-offs at the sub-bass and extreme treble ends, largely attributed to the bundled E 90 amplifier. Furthermore, while separation is good, the soundstage is only moderately wide, and it does not compete with more robust, higher-end options in terms of raw build quality. Headfonia

The Koss ESP 950 is a legendary electrostatic headphone system introduced in 1990 that delivers exceptional audio engineering and serving as an ideal introduction to electrostatic sound. Its key pros center around its phenomenal sonic fidelity, featuring clean, distortion-free mids, a bright and highly accurate high end, and an immersive, deep soundstage that makes music feel tactile. Additionally, despite a plastic construction, the headphone is incredibly lightweight, exerts no pressure on top of the head, and offers a highly comfortable fit for long listening sessions. The bundle provides great value with an included nylon storage case, an E/90 power transformer amplifier, and an optional 6-battery portable power pack. However, the system does come with notable cons, particularly regarding its build quality and physical footprint. The overall construction feels excessively plastic and cheap, which may conflict with expectations for a premium $999 audiophile device. Sonically, it is characteristically light on bass response and suffers from a minor bleed in the low end. From a practical standpoint, the headphones require a bulky external power transformer to overcome their massive 100,000-ohm impedance, eliminating...

The Stereophile review of the Koss ESP950 highlights a lightweight, open-back electrostatic system featuring a lifelike, detailed midrange and an exceptionally comfortable, user-friendly design with a strong lifetime warranty. Sonically, the headphones are noted for their "ravishing" midrange, presenting a warmer and more immediately engaging sound compared to competitor brands. Conversely, the ESP950 has minor drawbacks, including slightly limited frequency extremes that lack deep bass punch and a fixed, non-swiveling earpiece design. The bundled E/90 amplifier features somewhat awkward, independent volume controls for the channels, and the open-back, highly transparent design means it provides no isolation, making it best for quiet environments.