Наушники — Letshuoer S08 Fourth Generation

The Letshuoer S08 is a universal in-ear monitor built around one custom 13 mm planar magnetic driver of the brand's fourth generation. It comes in black and silver finishes, and Letshuoer prices it at USD 105. The shell panel works the number 8 from the model name into its styling, and a detachable cable plugs into each earpiece via standard 0.78 mm two-pin sockets. The nozzle measures 5.4 mm.

Key specs that matter

The planar diaphragm carries a dual voice coil pattern, a second coil layer added to the single conductive circuit used on conventional planar films. Stated frequency response runs from 20 Hz to 40 kHz. Sensitivity is 105 dB per mW, and nominal impedance is 26 ohms. The housing is closed at the back. Each earpiece is CNC milled from aluminium alloy, then given a sandblasted surface and an anodised finish. The S08 uses a single driver per side with no crossover.

Engineering and use context

Letshuoer forms the voice coil tracing on the diaphragm with a nanoscopic magnetron sputtering process, depositing copper onto the substrate film. The company states that this method was chosen for stability and a long service life of the conductor pattern. Around the edge of the diaphragm sits a PTR elastic film surround, which the maker specifies for extensibility and stability of the membrane. The box holds the earpieces, the modular cable, a round hard plastic carrying case whose lid screws onto the body, and six pairs of ear tips. Those tips come in two types, labelled vocal and balanced, each in three sizes, and the vocal set is fitted to the shells at the factory.

Pairing

The supplied cable is a four-core design, and every core holds 30 strands of 0.05 mm silver-plated copper laid in a spiral structure. Its plug end is modular, with a twist-lock mechanism holding either the 3.5 mm single-ended plug or the 4.4 mm balanced plug, both included in the box. One cable therefore connects to a player with a 3.5 mm jack or to a source with a Pentaconn 4.4 mm balanced output without adapters. Letshuoer describes the cable as compatible with multiple source devices. No 2.5 mm balanced module is listed among the supplied parts, so the kit covers the two most widely used headphone output standards on portable and desktop sources.

Alternatives

Within the same Letshuoer planar line, the S15 moves to a larger 14.8 mm third generation planar driver paired with a 6 mm passive filtering module.