When accounting for budget constraints of the average person. The answer to your question Jhunt is No...
To keep a open localized area pressurized at a low frequency takes tremendous amounts of energy, which consequently is very expensive. To make an enclosure that would be weather resistant would require quite a bit of plastic engineering. Like the Algonquin's the cabinet would need to be made of injection molded plastic and re-enforced with internal bracing to stand up to the internal pressure.
i would say the biggest reason why you are having a hard time, is because of the limited demand for the product you are looking at. If the market isn't large enough it just isn't worth it for manufactures to enter that market.. That is where we are at with the out door HT market..
The largest outdoor speaker market is the pro/concert market, and that is why those are the only quality products available.
