Наушники — Koss KSC35

The KSC35 is a wired ear clip headphone from Koss that uses pivoting ear plates and soft foam cushions to sit over the ear without a headband. At USD 44.99 it is the highest priced wired model in the Koss ear clip range, above the KSC75 at USD 24.99, the KSC22i at USD 19.99 and the KSC21 at USD 9.99. A protective carrying case comes in the box, and a Limited Lifetime Warranty applies to the KSC35.

Key specs that matter

Koss specifies a frequency response of 15 Hz to 25,000 Hz, an impedance of 60 ohms and a sensitivity of 101 dB SPL per milliwatt. Total harmonic distortion is listed as below 0.2 percent. A straight, dual entry cord runs 1.2 m to its plug. These electrical ratings are identical to those Koss publishes for the KSC75, and the frequency range and sensitivity are also shared with the KSC35 Wireless.

Engineering and use context

The drivers are dynamic elements, which Koss uses to reach the wide response quoted for the model. The ear plates pivot on the clip so the housing can follow the angle of the ear, and the foam cushions sit between driver and ear. Koss describes the result as an open hear-through design that keeps the wearer aware of the surroundings, and it presents the KSC35 as suited to listening at home or on the move. The company also states that the headphone reaches a high volume even with low voltage devices, which is the practical meaning of its sensitivity rating. Compared with the KSC21, the KSC35 extends the published range at both ends, and it adds a stated distortion figure and a carrying case that the entry model does not list.

Pairing

Portable sources with a 3.5 mm output, such as phones with a headphone socket, portable players, tablets and laptops, connect directly to the plug at the end of the cord. Koss highlights low voltage devices as a fit for the model, in line with its sensitivity rating, so a separate headphone amplifier is not part of the intended setup. The case gives the headphone and its cable a place to travel in between listening sessions. For those who want the same clip-on format without a wire, the KSC35 Wireless keeps the same range and adds Bluetooth 5.2 with USB-C charging.

Alternatives

In the same ear clip family Koss offers the KSC22i, a sport model with a SportClip design, an in-line microphone and a 16 ohm rating.