Why so few high end line arrays?


To me the intrinsic "wall of sound" of this design are compelling. I recently tried a very nice 3 way w/ stereo subs in my system after 2 years of line array-only listening and the lost impact and scale of eight midbasses/ribbons per side was profound. I was immediately aware of the music emerging from boxes, despite very nice imaging. And it's not that the arrays exaggerate the size of voices and instruments. Does the materials cost dissuade manufacturers? Is it the size? Seems like relatively unexplored territory in high end home audio.
jb0194
Hi Ptmconsulting,

My arrays stand 5.5 feet tall, shorter than the really big 'uns. Image height is not noticeably exaggerated where I sit (the back of the "nearfield zone").

As well, the image "forwardness" at high volumes in my system goes away below 80 Hz, and is nicely centered/deep at my listening volume sweet spot (about 75 dB average).

In fact, one trait of my arrays is exquisite expression of low level detail and tight, (relatively) impactful bass at such modest spls. It's a benefit that perfectly suits how I prefer to listen. Most array discussions seem to focus on the clarity and dynamics at very high spls - yet at low/modest levels these characteristics transcend any other loudspeakers (lots) I've had in my systems.
I agree with those micro dynamics at low SPL's. Line arrays tend to sound louder than the volume knob would seem to show. Maybe it's all those speakers (duh)?

I think the one design issue with line arrays is the number of speakers themselves. They do sound good even with low quality drivers. But to get the true best out of them you need better drivers, and that gets expensive. Most of the ones I've heard have been the former, and that could account for my bias against their soundstaging size.
If you ever look at the frequency response of line arrays, you will see what looks like a comb. Each driver interferes with the others at a regular interval throughout the frequency range. I do love how quick they are, however.
09-11-09: Tbg
If you ever look at the frequency response of line arrays, you will see what looks like a comb. Each driver interferes with the others at a regular interval throughout the frequency range.

Selah Audio Alexandrite - on-access Freq Response(200hz-20K), on-access Freq Response(10-200hz)

Selah Audio Symmetrica - on-access Freq Response(200hz-20K), on-access Freq Response(10-200hz)