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EarAcoustic's SPA-PRO are in-ear earphones based on a dynamic driver with a dual N52 magnetic circuit and an ultra-thin, rigid graphene membrane, enabling fast transient response across a wide frequency range for consistent, dynamic and detailed reproduction across the entire frequency band. This results in neutral sound reproduction designed to cause little listening fatigue, making these earphones ideal for professional use or critical listening.
SPA-PRO speakers feature a dynamic driver equipped with a dual N52 neodymium magnetic circuit, offering high magnetic flux density for better control of the diaphragm movement and a more linear response, even at high volumes.
The graphene diaphragm, which is both ultra-thin and very rigid, significantly reduces distortion while improving the driver's responsiveness. This combination provides excellent transient response and accurate reproduction across the entire audible spectrum, from deep bass to extended treble.
The internal cavity of SPA-PRO has been rigorously designed and tested (listening, modelling, measurements) to optimise sound wave management.
The objective was to effectively guide the acoustic flow while avoiding internal reflections and unwanted resonances. The volume, geometry, and materials used were adjusted to achieve a clean response, free of colouration, with a stable and well-defined sound stage.
Designed for demanding audiophiles and sound professionals alike, the acoustic profile of the SPA-PRO is based on neutrality and transparency. The frequency response is linear, with no excess in the bass or excessive brightness in the treble. This approach preserves signal integrity while ensuring fatigue-free listening, even during long sessions. The result is a natural, balanced sound that is ideal for mixing, production or critical listening.
SPA-PROs come with a 3.5mm jack to 0.78mm 2-pin silver-plated OFC copper cable, guaranteeing high-quality signal transmission without external interference.
Technical characteristics
Specifications | |
---|---|
Product type | In-ear earphones |
Driver | Ø11.4mm dynamic driver |
Impedance | 16Ω |
Sensitivity | 113dB |
Total harmonic distortion (THD) | < 0.5% |
Frequency response | 5Hz-40kHz |
Cable | Detachable |
Earphone connectors | 0.78mm 2 pins |
Cable termination | Jack 3.5mm |
Cable materials | Silver-plated OFC copper |
General | |
---|---|
Color | Silver |
Package | 1x EarAcoustic SPA-PRO 1x 3.5mm jack to 0.78mm 2-pin cable 1x Carrying bag 6x Pairs of ear tips |
Color | Silver |
Impedance (Ω) | 16 |
Efficiency / Sensitivity (dB) | 113 |
Wireless | No |
Cable termination | Jack 3.5mm |
Headphone / Earphone connector | CIEM |
Phone call feature | No |
Noise reduction | No |