Наушники — 64 Audio Aspire 2

The Aspire 2 is a universal-fit wired in-ear monitor from 64 Audio, part of the Aspire Series that the company aims at musicians who need dependable stage monitoring without ordering custom-moulded earpieces. The series spans four models, and the Aspire 2 is a two-driver hybrid that carried a US price of USD 499.99. The maker covers it with a 2-year limited warranty, and every model in the line ships with detachable IPX cables, foam and silicone tips and a carrying case.

Key specs that matter

Each earpiece pairs one dynamic driver, which handles the low frequencies, with a single balanced armature that covers the mids and highs, joined by a two-way crossover. The quoted frequency response runs from 20 Hz to 18 kHz. Impedance is 13 ohm at 1 kHz and sensitivity is 103 dB at 1 kHz with 1 mW of input. Passive isolation is rated at -20 dB. The shells are moulded ABS, fitted with a stainless steel nozzle whose outer diameter is 5 mm.

Engineering and use context

Three pieces of 64 Audio technology shared across the Aspire line are built in. Apex Core is a pressure-release system intended to reduce the build-up of air pressure inside the sealed ear canal, which matters during long rehearsals and shows, and the same Apex Core design is credited with supporting the low end produced by the dynamic driver. A Helmholtz resonator acts as a waveguide tuned to target specific frequencies in the treble range. The LID circuit, short for Linear Impedance Design, corrects the non-linear impedance that the two drivers present, so that the response keeps its intended balance whether the earphones are driven by a phone, a belt pack or a desktop amplifier with a different output impedance. Because the impedance is low, a source with a high output impedance would otherwise tilt the balance, which is exactly the case LID addresses. The slim nozzle accepts many third-party ear tips, so a stage user can swap to a fit that seals well. The detachable cable uses IPX connectors at the earpiece end and can be replaced on its own if it is damaged on the road.

Pairing

The supplied black cable is about 1.2 m long and ends in a 90-degree 3.5 mm plug, which suits wireless in-ear packs, mixer headphone outputs and portable players alike. A 6.3 mm adapter is included for studio interfaces and amplifiers with a full-size jack, and a shirt clip keeps the cable away from instruments while performing. The box also holds oval foam tips and a cleaning tool for the nozzle.

Alternatives

The 64 Audio Aspire 3 sits in the same Aspire Series and also uses the LID circuit in a universal-fit hybrid in-ear design.