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With the NM20, NF ACOUS presents us with in-ear monitors designed for professional use, offering a very neutral frequency response. A direct descendant of the NM2, these earphones take everything that made the previous model such a success, while improving the driver, structure and user experience.
The NM20 features a dynamic driver with a beryllium-plated diaphragm, accompanied by a double neodymium magnetic circuit and a double acoustic chamber. Uniquely, this driver is driven by a high-precision PCB to ensure identical sound reproduction in all circumstances.
The NM20 earphones also feature the company's proprietary 'Clutter Trap' technology. This consists of a set of 5 air pressure damping nets and 2 attenuation sponges to prevent sound refraction. The result is equivalent pressure between the front and rear of the earphone cavity, for a sound reproduction as close as possible to the original.
NM20s are made of high-strength polycarbonate (PC) with a frosted surface for a beautiful matte finish. The metal surround is CNC-machined aluminum. Finally, the 0.78mm connectors have been redesigned for simpler connection and greater durability.
The NM20 have been designed with professional use in mind, so they benefit from a very neutral frequency response, reproducing the original music as closely as possible. To achieve this, NF ACOUS deploys a range of techniques to obtain good bass below 100Hz, evenly covering the whole audible spectrum.
"The NF ACOUS NM20 single dynamic driver IEM excels in technical performance, delivering good detail retrieval, expansive soundstage, and precise imaging. Its sub-bass rumble and detailed treble provide an engaging listening experience that captures intricate nuances in tracks."
Technical characteristics
Specifications | |
---|---|
Product type | In-ear monitors (IEM) |
Driver type | Dynamic |
Earphone connection | CIEM 0.78mm |
Sensitivity | 108dB |
Impedance | 32Ω |
Sound Insulation | 25dB |
Frequency Response | 9-40kHz |
Total harmonic distortion (THD) | < 1% |
Maximum acoustic pressure | 125dB |
General | |
---|---|
Color | Grey |
Weight | 300g |
Package | 1x NF ACOUS NM20 1x 3.5mm jack to CIEM 0.78mm OFC copper cable 1x Storage case 1x Jack 3.5mm to Jack 6.35mm adapter 4x Pairs of earphone tips |
Color | Gray |
Impedance (Ω) | 32 |
Efficiency / Sensitivity (dB) | 108 |
Lowest frequency (Hz) | 9 |
Highest frequency (Hz) | 40000 |
Wireless | No |
Cable termination | Jack 6.35mm |
Cable termination | Jack 3.5mm |
Headphone / Earphone connector | CIEM |
Phone call feature | No |
Noise reduction | No |