Hi,
I bought the drivers together with 2 big horn-enclosures, each about
about 75x75x75 cms - sounds ok but if they stand in front of you it's
quite massive and for me too much to handle.
As each horn was loaded with two drivers side-by-side, I decided to
cut the horns in half, giving me 4 horns of half size with one driver each.
If stacked together I should be back to the original sound, but the single
boxes are now much easier to move, store etc.
At the moment I am stuck at smoothing out the cuts in order to install new
walls to close the semi-enclosures at the open sides. Takes some time
to get this done properly.
The horn design came from a London-based company called "Zoot Horn"
which seems to have gone into oblivion - my guestimate for the original
construction time would be the early 80ies.
The rolloff in the graph also gave me some headache - I just hope that they
perform differently (better) in a horn enclosure, the graph was probably taken
from a ported or sealed box.
The Imperial of course is a tempting option, as is the WO32 or the punisher horn
design of speakerstore.nl
And no, I will not use them (at least not all four) in my home, if everything works
out well this will be the (mid-)bass-stack for a reggae soundsystem of some friends
of mine. At their last party they used crappy Yamaha full-range tops which sounded
terrible.
Together with the bass-horns I bought two even larger horn-loaded tops (empty box
only, no drivers), you can see the whole mess at the ebay auction site:
http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=110096563184In the picture it looks fine but the fun ended when I discovered that even two people
have trouble moving the tops, so they will be up for sale again - anyone interested?

Edit: to answer all questions, I got the drivers used for 100 Euros each, not exactly
cheap but I think the price was reasonable. It's just a shame I never listened to the
horns before cutting them in halves - I had to get those trunks out of the way quickly.
Bye,
Hannes