Lowther Acousta loudspeakers
Lowther Acousta loudspeakers
Lowther Acousta loudspeakers
Horn loading of its drive units has been a mainstay of Lowther's designs from the very earliest days. In the post war years, with raw materials limited, it must have been difficult making larger speaker cabinets. So it was that the TP1 and Acousta models were introduced. Unveiled in the 1950s, these measured 34x18x17in (hwd) and were available in either vertical or horizontal mountings. The horizontal version came with 12in legs and is rare to find nowadays.
In 1958 the Acousta cabinet was offered in DIV kit form for 14.14s.Od. If you wanted a factory built cabinet only, this would have cost you 18.18s.0d - or 37.18s.Od complete with a PM6A drive unit. The Acousta plans could also be purchased separately for 2/6d (12,5p today).
The Acousta had several advantages over most of the competition at the time: moderate size, good value for money, a high quality sound and high efficiency. In the late 1950s, the cabinet depth was reduced by 2in to 18in by redesigning the bass horn, which enhanced the speaker's looks.
The Acousta Twin was introduced in 1959 alongside the standard Acousta. and measured 44in high by 18in square. The Lowther Corner Acousta enclosure soon joined the family, measuring 32x18x9,5in(hwd). Designed to stand facing into a corner of the room, the mid and treble frequencies were reflected back into the room to give a very spacious sound.
In 1966 two new models emerged: the Mini Acousta at 27x15x13in (hwd) and the PM7A drive unit. In the early 1970s the Super Acousta was launched, with two forward-facing drive units instead of one, while in 1972 came the Auditorium Acousta. This model utilized two drive units, one firing into the corner and one towards the listener.
The Acousta 124, produced in 1981, was the last of the Acousta range made by Lowther. it also had two forward-firing drive units.
Over the years birch plywood, chipboard, blockboard and other materials have been used in the cabinet construction. To our ears the earlier birch plywood cabinets sound the best.
BIG PICTURE
Sit in front of a pair of Acoustas and you hear a massive, panoramic soundstage, as if the designer of the late, lamented Cinerama projection system laid out its dimensions, image height is recreated with such lifelike scale that it's almost independent of the room. Within all of this audio real estate are precisely located instruments, which suggests point source/ i dual-concentric dispersion - nearly J always the preferred method for * imaging fanatics.
Little Brother Montgomery's solo barrelhouse piano and rich voice, following the juggernaut impact of an orchestral soundtrack, reaffirmed i our belief that the Acousta is the 5 kindred spirit of the Decca cartridge i in every way. The tinkle of the : piano, that scintillating treble and the sound of the hammers, shimmers in so Decca-like a manner that even CDs enjoy a hint of sparkle rather than any 'digital' brittleness.
If there is any downside it's the bass, which we can only describe as lumpy' and papery'. For listeners fixated on the lower registers the two-driver or larger models may sound freer and more flowing.
VERDICT
For all of the myriad paths that one can follow Lowther-wise we've yet to hear a Lowther-driver'd speaker that didn't possess in some measure the main reasons for buying into the genre: thrilling, involving, wildly dynamic sound. The Acousta is simply one of the safest bets... unless, that is, you're handy with a coping saw.
You also can read aboutThe Bose Acoustimass 5 SE sound system, and also about installation and adjustment ofBose Acoustimass 5 system.
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