Brian Gaff wrote:

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Many years ago Toshiba had some globe speakers that sounded quite good.
Basically they had multiple drive units moundted in a shape a bit like a
dodecahedron and covered over with a global mesh. The main construction was
di cast aluminium. You needed a bass bin as I recall, but they sounded quite
good. I wondered if anyone had continued with this type of idea since it
kind of turned the traditional directional stereo speaker idea upside down
so to speak.


** This pic shows the forerunner to the Bose 901 - the Bose 2201.

http://www.davidsgallery.info/DaveTu...odel_2201.html

The enclosure was shaped like one eighth of a sphere, with 22 x 5 inch drivers mounted on what looks like a curved aluminium baffle. Max height is 25 inches, making the internal volume about 3 cu.ft or 80 litres, plus each 2201 was self powered (50W amplifier) and equalised.

Owners could place one box in each corner of a room, next to the floor or ceiling. Other arrangements were possible too, if cost were no object.

FYI: 22 x 5 inch drivers have a cone area equal to 2 x 15 inch woofers.

Not surprisingly, the 2201 was a poor seller and Dr Bose was persuaded by sales folk to build the 901 instead, as a far cheaper, user friendly alternative.




.... Phil