I'm a line array convert too. Good ones will generally come at substantial cost, because high quality drivers are not inexpensive and many are used in these systems. Also the cabinets will be large. That said, some superb designs are very attainable, such as GR Research, Selah Audio, Epiphany Audio, and RAW Acoustics. At a higher price point look into Gryphon, Nola, Genesis, Wisdom, etc.
Line array loudspeakers are typically designed for nearfield listening, while commercial/professional line arrays are optimized for farfield listening. The design goals and intended use for each type are quite different.
You will find a lot of great information about line arrays in Jim Griffin's well known white paper. Download it at http://www.audiodiycentral.com/resource/pdf/nflawp.pdf
Line array loudspeakers are typically designed for nearfield listening, while commercial/professional line arrays are optimized for farfield listening. The design goals and intended use for each type are quite different.
You will find a lot of great information about line arrays in Jim Griffin's well known white paper. Download it at http://www.audiodiycentral.com/resource/pdf/nflawp.pdf