F-Core DU Drivers Tuned With The New Sound Evaluation Method

The team at Final spared no effort in terms of engineering and designing the A4000. This in-ear monitor features a new and redesigned f-Core DU driver that delivers high-quality, precise sound. This 6mm driver outputs a natural sound that’s crisp and clear. The development of the driver called for innovations in production machinery, adhesives, the diaphragm design and the voice coils. The precision involved in the assembling process for the driver unit is of utmost importance. With this dynamic driver, you experience “transparent sound”, which means that even sound images concentrated distantly can be heard clearly, for various genres of music. The Final A4000 is tuned incorporating the latest sound quality evaluation method in conjunction with Final’s commitment to detailed sound expression, which results in a realistic sound.

High-Quality Materials Used In Every Aspect Of The Build

The Final A4000 is made with premium quality materials and the utmost attention to detail for preferable results. The housing of the A4000 is made of brass instead of traditional aluminium. This decision was implemented as brass is highly resistant to the effects of magnetism and has a high specific gravity, favourable for making the IEMs. To increase the time response characteristic of the diaphragm, the voice coil is made from 30μ ultra-thin CCAW, and a minimum of adhesive is used for assembly to lighten the moving parts. The diaphragm is pressed in small lots of about 1/3 the normal size to constrain pressure deviation, resulting in a uniformly shaped diaphragm with no deformation. These design decisions and selected materials are contributing elements enhancing the sound quality of the earphones.

Redesigned Chassis Offering A Stable Wearing Experience

The design for the chassis of the Final A4000 has been completely reimagined and re-engineered to offer utmost comfort. Unlike most IEMs on the market, which is designed with an ergonomic shape that rests heavily on the ear and silicone ear tips to keep them in place, the A4000 limits the area that comes in contact with the ear, aiming to achieve a sense of fit with no feeling of oppression. In simpler words, the featured chassis is designed to limit the amount of contact between the housing and the ear. This makes it comfortable and ensures a stable fit for a variety of people.

Static Noise Suppressing OFC Cable With 2 Pin Connector

Final A4000 employs a thick and flexible cable to prevent breakage and tangling whilst using the earphones. The cable is made of soft, supple coating material designed to eliminate static noises. A4000 utilises a more flexible OFC (oxygen-free copper) cable to transmit better audio signals from a device to the IEM. This design drastically suppresses touch noise when the connecting cable touches the body. The earphones feature a 2Pin connector with the highest versatility φ0.78 standard and an L-shaped jack to further solidify the durability and upgradability. This durable cable and connector make connecting to a source device easy and seamless.

High-Quality Ear Hooks Included for a Comfortable Wearing Experience

The A4000 comes bundled with premium quality ear hooks that are crafted to fit everyone. The team at Final considered the key aspects to designing an ear hook that was comfortable to wear and discovered a form that was smaller than most existing ear hooks and that didn't utilise metal or resin wires. This decision allowed for a slimmer ear hook and one that feels premium to the touch. These ear hooks also feature an affixed lock (B Type) that is capable of holding the cable firmly in place, allowing the user to wear the earphones for extended periods and enjoy their music.

High-Quality Silicone Ear-Tips And Case Included

The ear tips for the Final A4000 have been designed from soft silicone for superior comfort and noise isolation. These come in 5 sizes and the right and left earbuds have different coloured markings for easy recognisability and the different sizes also ensure that the sound is transmitted directly to the eardrum. Two types of silicon differing in rigidity are employed for the sound conduit and for the earbud that comes into contact with the user’s ear. The silicon used for the sound conduit is more rigid than that used for the earbud, and having groove processing applied to it, combines both strength and flexibility. These earphones also come bundled with a silicone carry case. With this silicon carry case, the cables can be rolled up and stored easily. The earphones themselves are gently secured using thin dome-shaped silicon covers making them perfect to carry along with you.

Engineered to Sound Stunning With Regular Use

The Final A4000 comes embedded with driver units with a diaphragm attached to a voice coil and adhesive agent. With audio signals flowing, the diaphragm moves in minute increments along with the voice coil allowing the sound to be produced. Over time, the diaphragm moves efficiently and the sound changes or ‘ages’. The A4000 has a small aperture, and so an extended period is necessary for changes through ageing to become noticeable. When used for over 150-200 hours, it should feel as though the sound has become stable. Favourable outcomes can be obtained through the ageing of the product, by listening to the music you normally listen to at a volume you usually listen to.

The Pinnacle Of Cutting-Edge Japanese Engineering

Final utilises precise Japanese engineering focused on accuracy and detail. With cutting-edge technology and superior audio design, Final has earned recognition among audiophiles and won numerous awards. The company creates premium headphones and earphones built to last, similar to Swiss watches and German cars. Their products combine exceptional sound quality with thoughtful design for lasting value. At their factory, audio designers innovate through in-house research and development, fostering collaboration between teams. Their flagship "Final Store" in Tokyo showcases their products alongside Japanese cultural artefacts, reflecting their commitment to audio excellence.