some of you may be aware, Vifa is no longer manufacturing
these components. This is quite a pity as I found them to
be exceedingly good value for money. Over the last 10 years,
I have worked extensively on them in various configurations,
from a minimalist 1st order to complex 4th order networks.
This article shows what can be achieved with these under-rated
but outstanding components when cost is not an objection.
design is based on the following:
0.64 cu ft (18 Liters) Vented Box
Order (24dB/Oct) Linkwitz-Riley Network
Frequency of 1,500Hz
it's not a typo error. The tweeter is indeed crossed at
a demanding 1,500Hz. I settled on this frequency simply
because after much trial and error over the years, this
is where it sounds best. Generally, this Premium Line tweeter
is more comfortable when crossed between 2,500 to 4,000Hz
but it has never impressed me at that region. In designing
speakers, what is of paramount importance to me is for instruments
to have the right timbre. To achieve this, I had to take
this 1" Silk Dome tweeter down to a low of 1,500Hz,
into the realm of compression drivers. In fact, I initially
took it farther down to 1,250Hz but there were some protests
from the poor gal.