Наушники — Letshuoer Soloist

The Soloist comes from Letshuoer, an earphone company in China, and uses one driver per side. It was launched in May 2020 under the earlier Shuoer name at USD 159.99. Two colour versions were offered, blue and orange, each pairing a black body with a patterned faceplate in that colour, and on the blue version the faceplate carries wave-like streaks. Its driver is the one Shuoer also used in its Conductor earphone, so the Soloist offers that transducer on its own, without further drivers beside it. Later stock from a US retailer carried a USD 239 tag, and the model is now listed under the Letshuoer brand.

Key specs that matter

The single driver has a Kevlar dome with a membrane 0.03 mm thick, held by a surround of liquid silicone. Rated impedance is 32 ohm ±2 ohm and sensitivity 105 dB ±1 dB, and the published frequency range runs from 20 Hz to 30 kHz with THD+N of 0.5% ±0.2%. Each earpiece has standard 0.78 mm two-pin sockets. The supplied lead is made of 6N OCC copper, which stands for oxygen-free copper drawn by the Ohno continuous casting process, in a nylon braid.

Engineering and use context

Kevlar is a stiff and light aramid fibre, and using it for the dome keeps the moving part rigid while its mass stays low, which is why the maker links it to fast transient behaviour. The soft silicone surround lets the dome travel freely at large excursions, a role usually taken by a thin plastic film in small drivers. With only one driver there is no crossover inside the shell and no hand-over between units. The housings are 3D printed from imported resin, with a stated manufacturing tolerance of ±0.02%, and the body is shaped to follow the outer ear so that it can be worn for long periods. Because the sockets follow the common two-pin standard, the stock lead can be replaced with any aftermarket cable of that type.

Pairing

The lead ends in a 2.5 mm balanced plug, and two short adapters in the box convert it to a 3.5 mm single-ended plug for phones and ordinary jacks or to a 4.4 mm balanced plug for newer players and DAC amplifiers. The moderate load and high sensitivity let a phone dongle or small portable player reach listening level without strain. The box also holds six silicone tip pairs, a further two made of foam and a case for carrying the set. The lightweight nylon braid keeps the lead flexible when it is coiled into that case.

Alternatives

The Letshuoer S12 is an in-ear model built around a 14.8 mm planar magnetic driver in place of the dynamic Kevlar unit.