Fosi Audio IM4
Dual magnet and dual-chamber design for hi-fi sound: experience audiophile-grade clarity. Our IEM earbuds feature an N52 dual magnet for powerful control and a dual-chamber design for balanced sound. The 10 mm beryllium driver delivers a wide soundstage and crisp details.
Balanced and fatigue-free sound: The open design and acoustic damping wool reduce resonance and harshness, creating a relaxed, wide soundstage. These hi-fi earbuds are expertly tuned for balanced bass, midrange, and treble, making them ideal for audiophiles.
Ergonomic and lightweight comfort: designed for all-day comfort. The housing features a smooth metal finish that is hypoallergenic and feels pleasant to the touch. Weighing just 7 grams per earbud, these are among the most comfortable in-ear monitors for extended use.
High-quality CNC-machined aluminum: exceptional build quality and minimalist aesthetics. The housing is precision-machined from a solid block of aluminum. The unique orange metal grille and logo give the IEMs a distinctive look, both in style and substance.
Customizable sound and detachable cable: Tailor your audio experience. The IEM set includes 3 types of ear tips (bass, deep bass, balanced) and two sound nozzles (brass, aluminum) to precisely adjust the bass and treble. The 2-pin 0.78 mm detachable cable connects to 3.5/4.4 mm jacks.
Specifications
| Type | In-ear |
| Soundbox | Open |
| Drivers | 10mm Dynamic |
| Impedance | 21Ω |
| Frequency Range | 20Hz - 20kHz |
| Sensitivity | 109dB |
| Cable | 1.2 m (2-pin detachable cable) |
| Connection | 3.5mm |
| Operation | N/A. |
| Noise Cancelling | No |
| Bluetooth | No |
| Battery | N/A. |
| Weight | About 7g (per unit) |
| Warranty | 2 years |
| Scope of delivery | IM4, 1.2-meter 3.5-mm audio cable, carrying case, ear tips, nozzles, user manual |
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