Fostex ET-H3.0N7UB

The Fostex ET-H3.0N7UB cable represents the pinnacle of audio quality for demanding audiophiles. This unbalanced replacement cable is specifically designed for Fostex high-end headphones such as the TH909, TH900mk2, and TH610. Made with 7N grade OFC copper (99.99999% pure), it ensures audio signal transmission without alteration or coloration. Its 3-meter Y-design offers great freedom of movement, while its gold-plated 6.3 mm stereo jack and rhodium-plated 2-pin connectors ensure a perfect and durable connection. This standard cable, supplied with Fostex premium headphones, can also serve as an ideal replacement for those looking to restore the original sound quality of their equipment.

Exceptional Sound Purity

The ET-H3.0N7UB cable stands out for its use of 7N grade OFC (Oxygen Free Copper), which signifies an exceptional purity of 99.99999%. This conductor quality represents one of the highest levels available in the audiophile market. The near-total absence of impurities in the copper allows for virtually lossless and distortion-free electrical signal transmission.

This exceptional purity of the conductive material translates into sound reproduction that is faithful to the original recordings. The subtlest nuances of instruments and voices are preserved, offering a listening experience where every detail is perceptible. Audiophiles will particularly appreciate the sound transparency this cable provides, allowing them to fully exploit the acoustic capabilities of compatible Fostex headphones.

The cable’s build quality also helps minimize external electromagnetic interference, ensuring an optimal signal-to-noise ratio for pure listening without unwanted noise or background interference.

Premium Connectivity and Durability

The quality of an audio cable is not limited to its conductors but also extends to its connectors. The ET-H3.0N7UB is equipped with a gold-plated 6.3 mm stereo jack, ensuring optimal conductivity and long-term resistance to oxidation. This standard-format jack ensures compatibility with most high-end amplifiers and DACs on the market.

At the other end, the rhodium-plated 2-pin connectors provide a secure and reliable connection with compatible headphones. Rhodium, a precious metal from the platinum family, offers excellent electrical conductivity and remarkable resistance to corrosion, ensuring the cable’s performance longevity even after years of use.

The connector housing, made of robust duralumin, adds a premium tactile dimension to the overall design while effectively protecting the internal connections. This attention to detail reflects Fostex’s uncompromising approach to designing its high-end audio accessories.

Ergonomics and Ease of Use

With its generous length of 3 meters, the ET-H3.0N7UB cable offers appreciable freedom of movement during listening sessions. This length allows users to comfortably distance themselves from their audio source without tension, making it ideal for home use where the amplifier may be placed far from the listening point.

The Y-design of the cable is a smart ergonomic choice, evenly distributing weight and preventing excessive twisting. Despite its premium quality, the cable remains relatively lightweight at just 120 grams, ensuring it does not overly weigh down the headphones during use.

The cable’s flexibility, though not specified in the technical characteristics, is generally appreciated by Fostex product users, allowing for easy coiling for storage and limiting the “memory effect” that could deform the cable over time.

Compatibility with Fostex Premium Headphones

The ET-H3.0N7UB cable is specifically designed to work with several high-end models from the Fostex brand. It is perfectly compatible with the TH909, TH900mk2, and TH610 headphones, representing the manufacturer’s premium range.

The TH900mk2, a reference closed-back headphone, particularly benefits from the qualities of this cable. With its 50 mm dynamic drivers featuring neodymium magnets and “bio-dynamic” diaphragm, this headphone boasts an impressive frequency response of 5 Hz to 45,000 Hz. Its 25-ohm impedance and 100 dB/mW sensitivity make it relatively easy to drive, but it reveals its full potential when paired with quality electronics.

The TH909, the open-back version of the TH900mk2, shares the same exceptional technical characteristics and also fully benefits from the qualities of the ET-H3.0N7UB cable. Its open design offers a wider soundstage, complemented by the signal transparency provided by this high-purity cable.

The TH610, a more accessible model in Fostex’s premium range, also takes advantage of this cable to express its full sound potential, demonstrating the versatility of the ET-H3.0N7UB within the Fostex ecosystem.

Technical Specifications

General Specifications

• Type: Y
• Length: 3 m
• Weight: 120 g

Connectivity

• Plug: 6.3 mm gold-plated stereo
• Connector: 2-pin rhodium-plated

Materials and Construction

• Conductors made of 7N OFC copper (99.99999% pure)

Compatibility

• Fostex TH909
• Fostex TH900mk2
• Fostex TH610