Suggested boxes were likely to be reflex type cabs which are good when using them on indoor events, but there may be some issues when use outdoor. If the thread starter wants an all around cabs, i guess he will really have a hard time looking for one. Yan ang problema sa sound reinforcement, me mga trade offs palagi sa mga speaker cabs na gagamitin sa specific na venue. I have read a lot of technical papers about sound theory and it appears na tama nga sila. I do agree na kailangan ang tenga pero still we cannot bend the law of physics. Just take a look a particular website na kilala, almost always meron mga category yung mga product nila. Merong pang touring, installation, small venue etc etc. So to summarize it, even experts do had a hard time in making an all around speaker cabs.