Pre/Power Amplifiers

Statement amps are nothing new to Tim de Paravicini, his original EAR 509s and 549s hardly being minor projects. Neither were the first amps to bear the Yoshino names, a pair of designs showing that single-ended topology could be applied to both valves and transistors. But the latter, while Tim was able to voice it to ape the tubes, ran just as hot as the valves, and proved just as inefficient as all single-ended designs are known to be, so why bother? Damned if I know, for Tim's latest is a huge mutha of a single-ended amp... and it's solid-state.

The Philips Motional Feedback loudspeaker was one of the great advances in audio technology. Launched in 1975, the series would eventually encompass four distinct generations and remain in production for over a decade, its key technologies jealously guarded by Philips patents [HFN Jul '13]. However, the partnering equipment designed to help these speakers perform at their best is less well known, arguably due to Philips endorsing the use of third-party sources and amplifiers.

The 1980s was a decade of great change. Consumer products that had been the stuff of science fiction just 15 years earlier – digital watches, home computers, LaserDisc players – were now increasingly commonplace. The era had a dynamic, hedonistic feel, and it was now acceptable not just to have wealth but to show it.

Many think of Apple as creating today’s world of sleek, minimalist consumer electronics – but the business and creative heads of that Californian company – Steve Jobs and Jonathan Ive – were themselves inspired by great talents working in hi-fi, long before the iconic iPod was ever launched. Lest we forget, Jacob Jensen did amazing industrial design work at Bang & Olufsen for decades, as did Dieter Rams at Braun 15 years earlier.

Until this year, the flagship power amplifier in PS Audio's stable was the BHK Signature 300 [HFN Jul '16]. Still on sale, it bears the initials of Bascom H King, the veteran designer (Infinity, Constellation Audio and more) who was given license by the Colorado-based company to engineer a high-output monoblock amp around his favoured tube/solid-state hybrid topology. Six years on from launch, the '300 model has been relegated to second-tier status, replaced by the PerfectWave BHK M600.

The best of both worlds' is an oft-used rallying cry in the hi-fi industry, rolled out to extol the virtues of everything from compact loudspeakers with big bass output to digital network players with phono stage inputs. It's also the self-proclaimed raison d'être of PS Audio's Stellar M1200 monoblock amp. Sold in pairs for £6000, this recent addition to the Stellar range combines a high-power Class D output stage with Class A vacuum tube input, in pursuit of both efficient speaker-driving muscle and spine-tingling musicality.