Review: Andrew Everard

They clearly don't believe in sitting on their hands at Revel as the Performa3 M106 and F208 speakers have recently been subject to wholesale revitalisation, creating the PerformaBe range, said to 'redefine performance expectations'. Comprising the £4000 M126Be standmount/bookshelf speaker and the £10,000 F228Be we have here, the new models are available in a choice of high-gloss piano black, white, American walnut or metallic silver and, while the use of ceramic-coated drivers is familiar Harman/Revel fare, the new talking point is a beryllium dome tweeter.

Based in Treviso, Italy, Unison Research has long specialised in making very traditional looking tube amps with polished wooden chassis and rows of glowing bottles on display. At the same time its Unico series has adopted a more mainstream aesthetic and includes valve-based amplifiers that, well, don't really seem like valve amplifiers. Despite an outward appearance suggesting a completely conventional integrated amp, the Due – which sells for £2500 in standard silver with black available at a £100 premium – is very definitely a valve amp, or at least half of one.

At the risk of tempting fate, I wonder whether there's a power output arms race going on between manufacturers. The arrival of the new Ultima power amplifiers from Chord Electronics – at £30,000 apiece in either silver or black, along with the matching (and similarly-priced) Ultima preamp – suggests so. After all, their rated power of 780W/8ohm load is just north of the 768W claimed by Naim's 'Statement' NAP-S1 monoblocks [HFN Jun '15] – a target vaunted as 'one horsepower'. In practice, Naim's NAP-S1 achieved 795W/8ohm in PM's lab tests at the time, but it seems that in the current ultra-high-end amp scene, there ain't no substitute for cubic inches – or something like that.

No display, no power supply upgrade route, not even a remote handset: at first glance, the most striking feature of Naim's £2299 ND5 XS 2, the junior model in its revitalised network music player range, could be everything it hasn't got. After the striking looks of the 'new Uniti' models, with which it shares a software/hardware platform, and the large full-colour displays of the pricier NDX 2 [HFN Sep '18] and ND555, the ND5 XS 2 gives away little about its functionality.