Open Box NF Audio NE4 Evolution (Ships Only to Japan)

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Features:-
>Adjustable sound tuning with replaceable faceplates(Packed with three pairs of faceplates).
>Gold-plated connectors on the faceplates.
>Four high-performance Knowles Balanced Armature drivers.
>Exquisite craftsmanship with 5-axis CNC machined aluminum alloy ear shells.
>Standard 2-pin 0.78mm connectors.
>High-purity silver-plated oxygen-free copper cable.
>Comfortable fit with ergonomic shape.
NF Audio, a well-renowned HiFi earphones brand has introduced its latest pair of high-resolution IEMs, the brand-new NE4 Evolution. As the name says, the NE4 Evolution is truly an evolutionary pair bringing us new technology to change the frequency crossover with the pair as per our requirements. Yes, you heard it right, the pair has replaceable facepanels that change the frequency crossover with the drivers and affect the sound tuning accordingly. Experience an all-new level of sound tuning with the NE4 Evolution.
Revolutionary New Technology To Change The Frequency Crossover:-
In multi-driver earphones, the sound tuning is heavily dependent on the frequency crossover arrangement. It decides which driver will perform for what frequencies, and helps the engineers tune the output accordingly. NE4 brings a revolutionary new feature to switch the frequency arrangements with different sets of facepanels. Most of the earphones in the market have replaceable tuning nozzles, experience a drastic change with the advanced frequency crossover switching option on the NE4 Evolution.
Three Sets Of Facepanels, Three Frequency Crossover Options:-
NE4 Evolution has three different sets of replaceable face covers bundled in the package. The Red face panel enhances the lower-end response and brings a punchy presentation that complements EDM, Pop, and similar genres. It adopts a three-way frequency division with one BA unit for low, one BA unit for mids, and two BA units for high-frequencies. Similarly the Black faceplates for reference sound with a three-way architecture with one BA for ultra-lows, one BA for a full-frequency response, and two BA for high-frequencies. The third Blue filter is for transparent sound with a two-way architecture, one driver for full-frequency response and two for high-frequency drivers. This third filter utilizes only three drivers with the pair.
Premium Knowles Balanced Armature Drivers:-
Knowles is a well-renowned brand mostly known for its high-performance balanced armature drivers. NE4 Evolution adopts a four-driver configuration featuring Knowles 22955, Knowles 29689, and Knowles 31736(Composite) drivers per side. They deliver impeccable performance with high-resolution clarity and a wide sound field.
Premium CNC-Machined Aviation-Grade Aluminum Ear Shells:-
NF Audio has years of experience in designing HiFi earphones. They have designed the NE4 Evolution earpieces using a high-precision 5-axis CNC machining process with aviation-grade aluminum alloy material. The pair has an ergonomic design with a lightweight aesthetic and sturdy built that ensures a comfortable and firm fit for its users.
5N OFC Silver-Plated Cable:-
NF Audio NE4 Evolution has a premium 5N silver-plated Oxygen-Free Copper cable to ensure high-quality performance. This cable has standard 0.78mm two-pin connectors and a 3.5mm termination plug for easy connectivity with different sources.
Technical Specifications:-
>Driver Configuration: 4 Knowles BA driver.
>Sound insulation: 25dB.
>Distortion: <1%.
>Termination plug: 3.5mm.
Pop Faceplate(Red):-
>Frequency Response: 9Hz-20kHz.
>Sensitivity: 104dB/mW.
>Impedance: 6Ω.
Reference Faceplate(Black):-
>Frequency Response: 18Hz-22kHz.
>Sensitivity:108dB/mW.
>Impedance: 10Ω.
Transparent Faceplate(Blue):-
>Frequency Response: 20Hz-30kHz.
>Sensitivity: 110dB/mW.
>Impedance: 22Ω.