Lab: Paul Miller

Hi-fi companies marking anniversaries is nothing new – indeed, it seems something crops up almost every month to mark some celebration, from 25 years of the Bowers & Wilkins 600 Series upwards. However, few brands have the history to warrant an anniversary as significant as Denon, for this year the Japanese company marks not merely its centenary, but a full 110 years in business.

It's always intriguing to see how a company reacts to the realisation that a technology it has championed is reaching its sell-by date. This was the situation faced by Yamaha in the late 1970s. Since the middle of that decade, its top-end products had made use of Jun-ichi Nishizawa's Static Induction Transistor – more commonly known as the VFET – to great effect. This led to the development of designs such as the B-1 and B-2 power amplifiers, and C-1 preamplifier, all of which are still held in high regard.

Five years – that's how long ago the Sabrina was launched and five years seems about right before making a new version of any model as good as the original was – and remains [HFN Aug '15]. Rightly, the upgrade is comprehensive, not a mere facelift, which is reassuring if you're wondering why a £15k per pair model is now priced at £21,500-£23,000. As for the price span, it covers three standard or three deluxe 'WilsonGloss' paint finishes, which can be co-ordinated with five grille colours. Our review sample is pictured here in the 'upgraded' gloss Ivory.

American loudspeaker marque Klipsch has a longer history than many, something emphasised by its new 'p***ing off the neighbours since 1946' slogan. And its Heresy model itself dates back to 1957, when company founder Paul W Klipsch first developed a compact three-way floorstander to act as a centre speaker within a stereo installation. It has remained part of the Klipsch stable ever since, undergoing revisions first in 1985 and then 2006. Now it has been relaunched as the Heresy IV, priced £3500 per pair and forming the entry point to the Klipsch Heritage range.