As some might have seen, I´m planning to build me some more tops and a couple of monitors, but, until I manage to decide exactly what to build, and find the time/money to do the builds, I was thinking to re-use my old 1x15" tops that I´ve had for a few years, mainly use them as Dj/Drum monitors, and tops on second dancefloor or even smaller rentals that doesnt warrant the DR 280s. The do however need to be updated a bit, last weekend we spent a few hours with the looks (they really looked like shit), so now they look alot better, painted them black with Blue Arans Tuff Cab paint, really nice paint! We also took out the old 1/4" and XLR sockets, and are putting the same Speakonx2 dishes we use in our BFM builds.
So now the attention turn to making them sound a bit better, they are equipped with an rather old 15" driver from HH Acoustics, 250w rms/8ohm is all I really know, but it looks and feel like a rather sturdy driver, and 2 Piezos that looks very much like the 1016s Bill uses. The piezos are just put in to baffle in the top of the speaker, spread out horisontally, maybe 15cm between them or so. No crossover in the cab, just a resistor in series with the piezos.
I was thinking that I should be able to make them sound a bit better with a new HF section and a crossover. Either I could build me a piezo array like BFM, likely a straight one, difficult to mount a melded one to a flat baffle. Or, even easier and alot quicker would be to buy an of the shelf compressiondriver and horn, for example these: http://www.bluearan.co.uk/index.php?id= ... e=category and http://www.bluearan.co.uk/index.php?id= ... e=category
Those would be within the budget for these cabs, should be able to crossover from the 15" at 1.5kHz, and should be able to get a fair bit better sound and spl then the current setup.
But, I´d need a crossover as well (not bi-amping these), and finding a suitable of the shelf product seems to be a bit more difficult than I thought at first, and frankly, a bit more expensive than I was hoping
But building a crossover as in Bills design seems rather easy, and the components are cheap, but I dont know the first thing about designing a crossover, and without knowing the parameters of the woofers, I´d be swimming in the big blue:P How do I "design" a simple crossover, for say 1.5kHz? Could I use something that Bill has already designed?
Maybe a of the shelf product like this: http://www.bluearan.co.uk/index.php?id= ... e=category would work well enough? Or could I make a simpler/cheaper on my self?
What do you guys think, should I even bother to update them? I´m thinking that since I run a small but expanding rentalcompany, it will always be good to have an extra pair of tops, and with a new HF section and some proper eq, they might sound good enough. We´ve already used them as Dj monitors a few times, and well, they get the job sort of done
But perhaps the money would be better spent on building more BFM tops, but that will be a lot more expensive, and it feels unnessesary to scrap the old tops, those 15" woofers feels like they are rather nice, nice aluminium baskets and stuff. Perhaps they could be used in a BFM cab, but without knowing the specs... I have tried to find the specs to no avail..
Thanks guys!
Robin
And yes, I borrowed the PoS name from you 
Interesting that you were thinking of upgrading yours as well! Great minds think alike and all that 
On the other hand, the Beyma CD10fe, that I have experience with, and I´ve only heard good things about it, is not really that much more expensive than the closest P-Audio, its like 5£ difference or so, so nothing