"Windswept" was always
intended to be a one-off design. (No-one in their right mind would
make more!!)
The aim was to create
a dual Tapered Quarterwave Pipe, with the 2 pipes being
different lengths and being able to be padded to tune them and
thus even out the theoretical peaks and troughs in the bass
frequencies. How to do this was a problem until browsing through a
calendar; and there it was, a beautiful windswept snow gum !!!
The construction
procedure was to build the inner partition between the front
and back, install the top wadding and then laminate 4 successive
layers of 3mm MDF onto the sides.
Needless to say,
this was a mammoth undertaking. Each layer had to be pinned
to the front and back with 1" flathead nails at 2" intervals,
and a huge amount of PVA glue was used, between each layer.
This produces a very resonance free cabinet.
The Drivers
used are a Vifa P21WO-20-08 + Seas 27TFFC tweeter, crossed
at 2200Hz with a series cross-over.
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