Got acouple of those bins are imitasion local made
i will attemtp to use them with a lavoce woofer
i will attemtp to use them with a lavoce woofer
LAVOCE WAF153.00 15" WOOFER
woofer specs ar here http://www.loudspeakerdatabase.com/LaVoce/WAF153.00
do you think that i can make a usable result out of them ?
Usable, but the short front loading 4560A horn does not provide any gain in the usual "subwoofer" range below 100Hz.
As far as sub use, the area occupied by the horn is wasted space in an overly large cabinet better suited to drivers with around double the Vas of the LaVoce WAF 153.00.
If you are planning to use the cabinets up to around 800Hz-1kHz range for PA, the 200-800Hz hump may be of some use.
I use similar cabs (my own design, not identical to 4560) and I had to resort to using a BSC-like filter to tame the shelved midbass response caused by the short horn, even with the speakers placed in the corners. Sounds good though, and it's an estethical way to deal with time alignment.
How are you planning to use these, are you putting together a vintage sound system for vintage music or are you planning to use these for modern music? The drivers are modern copies of a modern brand name driver(RCF or B&C) so if modern sounds is what you want then trash the boxes and put the drivers in a reflex cab, it will be a LOT smaller and easier to move and you will get what you get in terms of output. I have not modeled these so this is purely off the cuff advice but my experience with chinese copy drivers is that they emulate the original pretty well and most modern drivers are reflex focused and loading them in a box like this doesn't add any output you want for a "subwoofer" these days.