Re: "My midrange drivers do not go down real low."That's too bad. My SAMMI 3 inchers go down to an FS of 102, with a 3.6 mm Xmax(huge for such a small speaker). But I cross them at 165hz. In a group of 17 per side, they sound fabulous.
It was one of the requirements when I built the array. The mids needed to be able to cover the range from about 150 to 2500. Handling only 5.8% of the total sound per side, they do great, and with EASE.
My preference is to do the designing first rather than the buying first. I did purchase one of them to start. I hooked in up in a tube cabinet, and disconnected the woofer from the other speaker. So they were handling low volume. It was the SAMMI running full range against a Vifa BC and an Audax tweeter. As long as the volume was low, in a direct comparison, both my wife and i agreed that the Sammi was more transparent and had greater clarity.
Marlboro