I think the answer isn't as simple as you may anticipate unfortunately. Are the drivers all lined up vertically at the point of origin? Are you using a measurement microphone to find phase anomalies? It's very hard to answer the question accurately without this information.
Having said that in an ideal world, yes the inverse polarity with each driver should provide a smooth xo (ready to be proven wrong though)
Having said that in an ideal world, yes the inverse polarity with each driver should provide a smooth xo (ready to be proven wrong though)
Yes that should help a lot. Ideally you can play say a test tone at the xo point and listen for a drop out with both polarities. This should mean you're at least within a 1/4 wavelength or so. Whereabouts are you in Syd btw? I've got a measurement mic and could perhaps pop round and help if need be.
It does sound good but there is little to go on here. Those second order slopes could turn into fourth order when you add the mechanical effects.
What procedures can the owner do? At the least they can swap polarity and listen. Any measurement comparison would be helpful.
What's the speed of sound like in Coolangatta?
What procedures can the owner do? At the least they can swap polarity and listen. Any measurement comparison would be helpful.
What's the speed of sound like in Coolangatta?