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NF AUDIO NE4 Evolution Knowles 4BA Balanced Armature In-ear Earphone IEM with 3 Replaceable Faceplates 0.78mm OCC Cable Headset

NF AUDIO NE4 Evolution Knowles 4BA Balanced Armature In-ear Earphone IEM with 3 Replaceable Faceplates 0.78mm OCC Cable Headset

Regular price £598.00 GBP
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NF AUDIO NE4 Evolution Knowles 4BA Balanced Armature In-ear Earphone IEM with 3 Replaceable Faceplates 0.78mm OCC Cable Headset

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 face panels 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.

- 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

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.
- 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 drivers
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
Impedance: 10Ω

Transparent Faceplate(Blue):
Frequency Response: 20Hz-30kHz
Sensitivity: 110dB/mW
Impedance: 22Ω

What's in the Box?

Shipping & Returns

  • Free Standard full searchable Shipping
  • DDP(Delivered Duty Paid) Services, No payment on receiption
  • Free 7-Day Return Policy!

Shipping Fees

Worldwide Free Shipping on Hificat, Please allow 1-3 business days for conduct Quality Control in order to ensure the products quality.

In the event that a shipment is refused delivery by the recipient, is undeliverable, or is returned to sender, Hificat will process a refund to the original payment method used.

If a customer would like the order reshipped, they’ll be charged a reshipment fee. Customers may also be subject to a restocking fee of up to 20 percent of the product cost.


Which Couriers To Use?

We collaborate with these courier companies:
Standard Shipping: Yanwen Express
Express Shipping(over $500 can be free): DHL Express, FedEx and SF Express

Hificat has extensive global logistics experience to ensure quality logistics services to consumers.

HiFiCat offers consumers different shipping, depending on the country, a choice of different shipping methods.


Estimated Delivery Time

1. France, Germany, UK, Italy, Spain, USA.

All taxes and duties are prepaid to the carrier by HiFiCat prior to shipping, so there are no taxes or duties to pay when you receive it. 6-10 days to arrive.

Tracking Example



United Kingdom:



United States:

2.EU Country:Filand, Poland, Estonia, Norway, Switzerland, Greece, Sweden, Israel, Czech Republic, Slovenia, Slovakia, Denmark, Netherlands, Latvia, Croatia, Austria, Hungary, Belgium, Bulgaria, Romania, Ireland, Malta, Iceland, Serbia and so on.

All taxes and duties are prepaid to the carrier by HiFiCat prior to shipping, so there are no taxes or duties to pay when you receive it. 10-15 days to arrive.









Czech Republic:


















Russian Federation

3.South America:Peru, Brazil, Chile



South Africa:


New Zealand:


5.Canada By Canada Post, about 2 weeks.
6. Asia:
Japan By Japan Sagawa Global Transportation. About 7 days.
Thailand By jt express. About 5-7days.
Malaysia by jtexpress.My  About 5-7days.
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