None of the rest of use do much more than quote it. The bottom line is that if one is building a line array for an inside dwelling, and one wants all the benefits of it with low distortions and wide sound stage, one is constrained to use those parameters which require a large line that goes 70% of floor to ceiling in the mid/base area, and at least one meter in the tweeter.

Everything else is design compromise.

If Ivor feels compelled to provide flame bait when he's not sure what the poster is saying, rather than ask a question, then that is his prerogative. I stand by my statement that an array that has four speakers in it is not a line array.

I'm sorry if Ivor misunderstood what I was saying. I often suffer from imprecise speech when it comes to these things as I lack a technical background, or an EE degree. Its a hazard. But having built one of these bad boys to Jim's specifications, I assure you that I understand what his white paper says.

Kind regards,

Marlboro