Loudspeaker Technology in Headphones

Over the years, Focal has established themselves as a top of the line hi-fi speaker manufacturer. The technologies used in many of the Focal products are new and innovative, making Focal an industry leader.

Recently, Focal used their 35+ years of speaker knowledge to develop the first full range loudspeaker within fully open back headphones. The result: two refined open back headphones that are a powerhouse of sound.

Both the Focal Utopia and Elear headphones use this new patent pending loudspeaker technology.

Utopia Tweeter

Focal Technology

  1. Basket
    • 50 mm diameter
  2. Surround
    • Only 70 microns thanks to the NBR Material
    • The lightest surround never made

    The surround is clearly a key component of the moving part. When it comes to the physical demands expected of Utopia and Elear headphones, the surround needs to offer an optimized compliance and have high Xmax, to ensure they are as lightweight as possible.

    Once again, Focal has proved its expertise with another world premiere: the thinnest suspension ever created, with a thickness of 80 microns!

    This challenge required months of work to conciliate very low mass, maximum excursion and the linearity of the moving assembly, all while ensuring perfectly balanced sound regardless of the volume.

  3. «M» shape dome
    • Innovation coming from K2 Power
    • 40 mm diameter
    • Beryllium for Utopia
    • Aluminium/ Magnesium for Elear

    One of the reasons why headphones sound different to speakers is due to the shape of the soundwave.

    Whether it’s an inverted dome or a positive dome, a listening distance of an inch requires that the shape of the dome is completely redesigned to achieve a plane wave in ultra-nearfield listening.

    In order to achieve this, Focal innovated once again by designing a cone with a new ‘M’-shaped dome.

    Utopia, of course, is equipped with the famous pure Beryllium dome in order to offer an unrivaled mass rigidity damping ratio.

    Elear, on the other hand, has a dome made of an aluminium/ magnesium alloy just like Aria speakers.

  4. Voice coil
    • First voice coil without any support
    • 25 mm diameter and 4,4 mm high
    • The smallest and lightest voice coil never made

    As part of the project, Focal has design the very first voice coil without former that also features a monolayer coating to make it even lighter. The result is a voice coil measuring 25mm in diameter by 4.4mm in height which is actually lighter than voice coils measuring 15mm x 1.5mm used in other highend headphones on the market.

    The goal is to have excellent mechanical coupling to the dome considering its diameter, and to ensure the voice coil is always controlled by the magnet’s magnetic field regardless of the excursion of the moving part.

  5. Motor
    • Utopia total motor weight:135 mg
    • Elear total motor weight:150 mg