![]() ![]() These rare-earth magnets are far more powerful than the normal ferric type and are seen on many quality drivers nowadays as the smaller magnet makes it easier to concentrate the magnetic flux, and diffraction effects from the magnet are less. The custom driver, labelled the TSR 200 (200mm I assume) sports an unusual but beautifully made CNC'd, square alloy chassis (see pics) and small (but powerful) Neodymium magnet. ![]() It's an utterly conventional looking, and room friendly tall, thin box (W 20 x D 50 x H 125 cm) very much in the modern mode. ![]() The horn exits at the back, which in theory allows for corner/wall loading. Finish is faultless as you'd expect (but don't always get) at the price. The material used is special compressed plywood and a wide choice of veneers are available. Constructionīasic cabinet construction is to a very high quality. So though the Acuhorns looked attractive and have garnered praise elsewhere I approached them with a little scepticism. The Acuhorn looks like a scaled-down version of my Polaris except that the horn fires from the rear - the question is how small can you successfully downsize the horn concept before they become too unbalanced? The horn mouth of my own Polaris measures 30x48 cms and as mentioned about this gives bass down to about 60 Hz, the 125's measures 16 x 58 cms, considerably smaller, and with less space above for complex folding. Often better to use other tricks like Voigt Pipes and folded pipe configurations and put up with their own quirks. There are small horns out there but generally they are weedy, thin sounding things that struggle without a sub and to my mind generally push the concept too far. My own Polaris are huge and yet even then their bass drops like a "buzzard shot with an Uzi* " below 60Hz - a level you'd expect from a compact standmount. The limiting factor is that horn speakers need a big mouth to drop to low frequencies. Such is the world of really good horns - once sampled going back is very difficult.īut there are downsides - even for an addict like me, and one of the biggies is just that - they are big. Likewise they are unlikely to have become besotted by the coherence of a speaker that runs without a crossover, doesn't have to integrate two wildly different driver designs and requires a watt to have a party. Those who say horns are hideously coloured or band-width limited, or have no bass have never heard properly designed horns. These large speakers have sat in the system and loved unreservedly. For the last 6 years my own system has been fronted by a pair of single-driver, full-range horns - the Loth-x Polaris (no longer made). ![]()
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