We've spent months trying to produce the very best JH Audio custom IEM cable and the result is simply stunning – sonically transparent which reveals the true beauty of every song, exactly how it was recorded. Capacitance, inductance and resistance - three major factors affecting the sound quality of the headphone cable - have been taken into careful consideration to ensure ultimate performance from your Ultimate Ears custom earphones.

Every JH Audio IEM cable is carefully handmade by one of our skilled craftsmen, right down to sleeving the bare wire. It's why we guarantee every earphone cable to be of the highest quality, sure to deliver many years of beautiful music. Absolute control of every step of the earphone cable construction is the only way to ensure it is carried out perfectly, every single time.

We tested over fifteen sources of ultra-high purity stranded silver wire to ensure the absolute best for the Fidelis cable. It means we know exactly what goes into every single JH Audio cable - there is no way we would compromise the sound quality by purchasing from unverified sources. If you want to achieve ultimate performance from your custom moulded Ultimate Ears IEMs, a headphone cable with high-purity silver is by far the best way to do it!

Ever JH Audio Fortis IEM cable is terminated with a high quality low-profile 3.5mm jack from ViaBlue. Other options include the RSA and iBasso balanced plugs in case you are using their portable headphone amplifiers. We also include a 3.5mm to 6.3mm adaptor with every Fortis cable for easy use with a larger variety of headphone amplifiers.

The Fortis headphone cable has been finely crafted to be lightweight and flexible, yet offers incredible durability with stress relief at all vulnerable points. Every Fortis IEM cable includes a three-year warranty as standard.