Наушники — Sivga Audio M300

The M300 is a wired flat-head earbud from Sivga Audio, the Chinese headphone maker known for pairing wood and machined metal in its housings. Its shell rests against the outer ear, with no tip pushed deep into the canal the way an in-ear monitor works, and it is built around one large dynamic driver. The official list price is USD 59, and the package includes three pairs of ear tips, an Oxford fabric carrying case and printed instructions. The M300 is sold in two wiring versions that differ only in the plug.

Key specs that matter

The M300 relies on a 15.4 mm dynamic driver with a single-piece graphene-coated diaphragm, a high-purity OFC voice coil and a high-strength magnetic circuit. Sivga quotes a frequency response of 20 Hz to 40 kHz. Sensitivity is 109 dB with a tolerance of 3 dB, and impedance is 64 ohm with a tolerance of 15 percent. The earphone weighs 29 g including its cable. The cable is 1.2 m long, give or take 0.2 m, and is fixed to the earpieces.

Engineering and use context

The housing combines African ebony wood with a CNC-machined aviation aluminium alloy frame. Sivga uses the wood portion to absorb vibration inside the shell, while the metal part gives the structure its rigidity and precise shape. The flat-head earbud form keeps the driver just outside the ear canal, so it does not rely on a deep seal, and the foam or silicone covers supplied in the box adjust fit and comfort. The graphene coating on the diaphragm stiffens the membrane without adding much mass, which suits a driver of this diameter. The cable uses high-purity silver-plated OFC conductors in a Litz braided construction, with 7 cores of 7 strands each at 0.06 mm per strand, which Sivga says reduces interference. The maker lists the M300 with either a 3.5 mm single-ended or a 4.4 mm balanced termination, and the version described here ends in the 3.5 mm plug. Since the cable is not detachable, the plug choice is made at the time of purchase.

Pairing

With its higher impedance the M300 draws less current than typical low-impedance earphones, and its high sensitivity still lets a phone, laptop or small USB DAC dongle drive it to normal levels. Sources with higher output voltage, such as a dedicated music player, give additional headroom. Owners of balanced portable gear can choose the balanced variant.

Alternatives

The Sivga Nightingale Pro is a wired model of the same brand that uses a 14.5 mm planar magnetic driver and a detachable cable.