Loudspeakers

One of my secret loves has long been transmission line speakers. I miss IMF (named after the designer, Irving M. Fried), the doyen of the genre, although the technology has been used by other brands – most notably PMC. You can therefore imagine my delight when the prodigy1 arrived at a mere £1250. I'd been hearing about it for months, as the prodigy1 (with lowercase 'p') was a talked-about launch at the 2023 Munich High-End Show.

In The Who's 'Won't Get Fooled Again', Roger Daltrey memorably sings 'Meet the new boss – same as the old boss'. It's a phrase that sprang to my mind when confronted by PMC's twenty5.26i, as this floorstanding speaker is, outwardly, identical to its twenty5.26 predecessor launched in 2016, with cabinet dimensions matching to the millimetre. Yet PMC describes its new twenty5i series as a 'substantial re-engineering', improving performance without moving away from the signature sound of its forbear.

The advice given by Apple's Steve Jobs to 'Start small, think big' is pretty sensible, going hand in hand with that old saw about not trying to run before you can walk. That recommendation seems to have eluded Colorado-based company PS Audio, which launched its speaker line last year with the big aspen FR30 [HFN Jun '22], arriving in the UK with a price tag now running at £30,000, and clearly aiming high straight out of the box.

Even if the title isn't familiar, you'll know The March Of Progress by Rudolph Zallinger. Published in a 1965 volume of Life Nature Library and depicting 25 million years of human evolution as a series of side-on illustrations, from the ape-like Pliopithecus to modern man, it popped into my mind when I unboxed PS Audio's Aspen FR5.

Armour Home's Q Acoustics has been busy in recent years, refreshing nearly its entire portfolio of passive and active loudspeakers, and expanding existing lines. The Concept 50 and 30 models were launched in 2022 to fill out its top-flight range, which includes the Karl-Heinz Fink-designed Concept 500 flagship , and a more affordable 5000 series appeared just before High End Munich in 2023. This didn't arrive fully complete either - the largest 5050 floorstander we're looking at here only finally debuted in the Spring of 2024.

When Q Acoustics launched its Concept loudspeaker range in 2013, it began with a sub-£500 standmount – the Concept 20 [HFN Feb '14]. While this was in keeping with the value-for-money reputation the UK brand had developed since its arrival in 2006, within a few years it was reaching higher with the (then) £3000 Concept 300 and £4200 flagship Concept 500 [HFN Jul '17].