Review and Lab: Keith Howard

Review: Andrew Everard, Review and Lab: Keith Howard  |  Mar 11, 2020  |  0 comments
hfnedchoiceDubbed Avantgarde's 'best kept secret' the Duo Primo XD was revealed at the UK Hi-Fi Show Live

Of late we've had some speakers through editor PM's listening room only describable as imposing, but nothing quite prepares one for the sheer visual impact of the Duo Primo XDs from Germany's Avantgarde Acoustics. Standing some 1.8m tall by 67cm wide, and weighing 185kg apiece, installing them is a matter of slotting the boxes together rather in the manner of building a PA stack – an appropriate analogy, as we'll discover – while the price-tag is similarly huge, at £79,500 a pair.

Review and Lab: Keith Howard  |  Mar 10, 2020  |  0 comments
hfnoutstandingGenuinely novel headphones are few and far between but here, from a small brand in Vienna, is one worthy of the description. And it can boast a famous ancestor...

Among those fortunate enough to have experienced it, the AKG K1000 is often spoken of with a mixture of reverence and awe. It wasn't just AKG's flagship when introduced 30 years ago, it was an attempt to redefine headphone design and shove it in a new direction. The K1000 had no earpads as such – its capsules were held away from the head by small pads above the ears – and it was pared-down structurally to obviate other resonant cavities and minimise the reflective surface area.

Review and Lab: Keith Howard  |  Mar 03, 2020  |  0 comments
hfnoutstandingDon't look down your nose at PS Audio's cheapest mains regenerator. Used with low-power source components, pre and headphone amps, it can still be transformative

Back in the late 1970s Bob Stuart of Meridian observed that an amplifier has more inputs than those labelled as such, others being 'output' and 'mains'. It was an idea to which lip-service was widely paid but, on the mains side, nobody really picked up the idea and ran with it until PS Audio introduced its first mains regenerator in 1998. Yes, we'd had mains filters and conditioners of various types before but this was the first device that said that if you want the cleanest mains supply you're going to have to synthesise it from scratch.

Review and Lab: Keith Howard  |  Jan 13, 2020  |  0 comments
hfnoutstandingIt's a brave company that launches a £20,000 headphone as only its second product – and an electrostatic too. Yet more remarkable: that company isn't Chinese but British!

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.

Review: Christopher Breunig, Review and Lab: Keith Howard  |  Nov 26, 2019  |  0 comments
hfnoutstandingBeryllium drivers, sustainable hardwood, real leathers, price – these debut open-back 'phones tick all the boxes. But do they offer the ultimate in sound quality?

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.

Review and Lab: Keith Howard, Review: Christopher Breunig  |  Sep 03, 2019  |  0 comments
hfnedchoiceThe Chinese company claims a decade of planar driver technology development with these robust mid-priced open-backed 'phones – are they a cause for celebration?

With HiFiMan's UK distribution now switching to Signature Systems, we are at last able to get our hands on this idiosyncratic range of headphones from China. What makes them idiosyncratic is not merely their use of planar magnetic (aka isodynamic) drive units – something which is becoming increasingly mainstream – but that these drivers are reminiscent of isodynamic units of the past in respect of their low sensitivity.

Review: Christopher Breunig, Review and Lab: Keith Howard  |  Jul 05, 2019  |  0 comments
hfnoutstandingThe French speaker company has upped its game with this de-luxe closed-back design – perhaps aimed to make a 'mocha-ry' of the competition? Let's see how well it sounds

Hot on the heels of the Elegia [HFN Mar '19] – the first closed-back model in Focal's revamped, post-Spirit headphone range [HFN Dec '15] that launched in 2016 with the open-back Utopia [HFN Feb '17] – comes the second closed-back design, the £2799 Stellia. These two flagship models, both featuring beryllium diaphragms, effectively bookend the range, their less costly siblings being based around the same M-cone drive unit concept but with a less exotic aluminium-magnesium diaphragm.

Review and Lab: Keith Howard  |  Jun 26, 2019  |  0 comments
hfncommendedA development of the earlier M4U 2, this new design adds Bluetooth and internal battery charging while listening, via micro USB. How do the improvements stack up?

Although it received a lukewarm review in these pages [HFN Dec '13], the M4U 2 – predecessor to the M4U 8 we're looking at here and still available – proved to be a success for PSB, garnering plaudits and awards along the way. The M4U 8 looks very similar and it would be easy to suppose that it's just an M4U 2 with wireless capability in the form of Bluetooth and NFC (near-field communication) bolted on. In fact it's a bit more than that, principally because its onboard DSP capability allows it, in active mode, to deliver a more precise adherence to PSB's RoomFeel target frequency response.

Review and Lab: Keith Howard  |  Jun 19, 2019  |  0 comments
hfncommendedShort of having a dedicated generator in your garage, you are not going to get cleaner mains than from PS Audio's new Power Plant, which is bigger and better than ever

In a game of audiophile word association, 'mains regenerator' will elicit the response 'PS Audio' just as surely as 'electrostatic headphones' does 'Stax'. PS Audio can't claim to have introduced mains regeneration to high-quality sound reproduction – that distinction belongs to Linn Products and the Valhalla board for the LP12, introduced in 1982. But nobody generalised on that specific, realising that a regenerated mains waveform might bring improvements to audio components other than a turntable's synchronous AC motor, until PS Audio introduced its original Power Plant, to a somewhat bemused hi-fi industry, in 1998.

Review: David Price, Review and Lab: Keith Howard  |  Sep 01, 2018  |  0 comments
hfnoutstanding.pngIf you've admired Vivid Audio's design philosophy but baulked at its styling, the new Kaya range is for you

Audiophiles can be a conservative bunch. Me, I sometimes feel that if I ever see another wood veneered box loudspeaker I'll attack it with a chainsaw but others of you, I know, prefer the old aesthetic, or at least a modern take on it, to curved, organic cabinet forms – especially if painted in primary colours. For a company like Vivid Audio, which appreciates and exploits the benefits of curved cabinets in respect of structural stiffness and clean diffraction behaviour, this is a problem.

Pages

X