Headphones

If you're looking at the photos of the Aeon 2 here thinking, 'Isn't that a MrSpeakers product?', the answer is yes and no. The original Aeon was indeed made by MrSpeakers but recently the company changed its name to Dan Clark Audio, Dan Clark being the company founder. It was a sensible move because MrSpeakers had never made, or looked like making, a loudspeaker, but like all company name changes it can take time to bed in.

When we reviewed the LCD-2 [HFN Mar '13], Audeze was in the vanguard of what was to become the rebirth of isodynamic driver technology, more commonly known today as 'planar magnetic'. To those of us who'd lived through the high-profile launch of the original PM headphone, the futuristic looking Wharfedale Isodynamic, 40 years earlier, it came as a surprise.

When it comes to affordable music players with hard disk storage, few companies have the pedigree of Korea-based Novatron. Its range of products, sold under the Cocktail Audio brand worldwide – including here, before a UK-only rebranding to Novafidelity – starts from as little as £650 for the X14 model. In this instance the user is able to decide how much storage capacity to have installed, or even buy the unit 'bare bones' and add their own choice of drive.

Veteran makers of headphone amplifiers for studios, Manley Laboratories is taking on the extreme high-end of the domestic genre with a £4500 unit – the Absolute – that marries audiophiles' sonic requirements with the total control demanded of professionals. Company CEO Eveanna Manley says, bluntly, 'Our goal was simply to produce the most awesome-sounding and sonically flexible vacuum tube headphone amplifier!'.

Electrostatic headphones are like royalty: rarefied enough to assume an aura that rivets mass attention. In the case of Warwick Acoustics' Aperio, it's not just its operating principle that catches the eye and sparks interest but its price too: at £20,000 this isn't the most expensive headphone/amplifier combination ever seen but it's up there with the very few daring to dangle a price tag greater than that of a family car.

Imagine that instead of each of your stereo loudspeakers sitting in splendid isolation, optimally aligned with respect to the listening seat, there was a large band of metal or plastic curving between them, joining the two cabinets. If you know anything of loudspeaker design and the efforts taken to quell structural resonances, you'd immediately suspect this structure of colouring the sound and – by carrying vibrations from one speaker to the another – of messing with the stereo image.

Mention beryllium and digit counters begin to whorl in the imagination. Unquestionably the very best metal from which to construct a headphone or loudspeaker diaphragm – because the speed of sound through it is over twice that of aluminium, magnesium or titanium – its use has historically been constrained for two reasons.