8 Jan
2012
8 Jan
'12
11:38 a.m.
On Sat, Jan 07, 2012 at 11:32:21PM -0500, Al Thompson wrote:
On 01/07/2012 04:09 PM, Fons Adriaensen wrote:
They were not based on any existing cabinet design. Some time
before Wireless World (which was a great magazine at that time)
had published an article discussing the relative merits of
various horn profiles - exponential, catenary, hyperbolic -
and this had tickled my curiosity.
To build the horns, we first cut the profile in a piece of
plywood (hyperbolic IIRC), then used this to make a plaster
mould. This in turn was covered with several layers of the
glass fiber sheets and epoxy resin - a very messy affair.
They sounded very well, and were incredibly efficient.
Ciao,
--
FA
Vor uns liegt ein weites Tal, die Sonne scheint - ein Glitzerstrahl.
But some time in the late 70s, together with my prof of audio
technology at the Brussels broadcasting and media academy, I
constructed some very large linear horns using glass fibre
sheets and epoxy resin. One day we were testing outdoors using
You were making linear versions of the Levi cabinets?? How did they sound?