"I can't imagine the bass response [of a horn system] to be anywhere near sufficient for blues/rock."
It depends on what type of horn system you mean. If you're talking about a single fullrange driver in a back-loaded horn, then yes the bass will be insufficient for blues/rock. If you're talking about a horn/direct radiator woofer hybrid, you'll probably have plenty of bass. If you're talking about a fullrange uber-high-efficiency multi-horn system, with a true horn-loaded woofer section, then it depends. Some will go plenty deep for rock and blues, and some will not.
"I'm very curious about the mid-range, though. In my experience, the ultimate challenge for speakers is accurately reproducing solo vocals and piano. Curious to know how horns would do..."
A good horn system will have negligible characteristic "horn" coloration, and will be extremely dynamic and articulate, to the point of doing justice to solo piano at realistic levels (which is a lot harder than it sounds). Of course not all horns are created equal, nor are all horn systems created equal - many horn systems do have that characteristic "horn" coloration, so you gotta do your homework.
The type of horn system I'm most familiar with uses a direct-radiator woofer crossed over to a constant-directivity horn at the frequency where the woofer's pattern has narrowed (due to beaming) to match the horn's pattern. The result is a "controlled directivity" speaker, and its advantage is that the reverberant energy in the room has very nearly the same spectral balance as the first-arrival sound. This is a characteristic of natural voices and unamplified instruments that relatively few loudspeakers emulate, and it's the main reason why I prefer horns (waveguide-style contant directivity horns, to be precise).
You mentioned room acoustics also... a good controlled-directivity speaker works with your room, rather than against it, in this sense: Since the reverberant energy in the room sounds like the first-arrival sound, it's beneficial instead of detrimental, and so you don't need to absorb it in order to "fix" anything. Of course you want to avoid slap-echo, but beyond that, you want a powerful, diffuse reverberant field. Indeed, the presence of a well-energized, spectrally correct, diffuse reverberant field is a primary difference between a good recital hall and the average home audio listening room. I can go into detail about some unorthodox ideas for developing that sort of reverberant field, if you'd like.
Best of luck in your multi-year quest!
Duke
dealer/manufacturer
It depends on what type of horn system you mean. If you're talking about a single fullrange driver in a back-loaded horn, then yes the bass will be insufficient for blues/rock. If you're talking about a horn/direct radiator woofer hybrid, you'll probably have plenty of bass. If you're talking about a fullrange uber-high-efficiency multi-horn system, with a true horn-loaded woofer section, then it depends. Some will go plenty deep for rock and blues, and some will not.
"I'm very curious about the mid-range, though. In my experience, the ultimate challenge for speakers is accurately reproducing solo vocals and piano. Curious to know how horns would do..."
A good horn system will have negligible characteristic "horn" coloration, and will be extremely dynamic and articulate, to the point of doing justice to solo piano at realistic levels (which is a lot harder than it sounds). Of course not all horns are created equal, nor are all horn systems created equal - many horn systems do have that characteristic "horn" coloration, so you gotta do your homework.
The type of horn system I'm most familiar with uses a direct-radiator woofer crossed over to a constant-directivity horn at the frequency where the woofer's pattern has narrowed (due to beaming) to match the horn's pattern. The result is a "controlled directivity" speaker, and its advantage is that the reverberant energy in the room has very nearly the same spectral balance as the first-arrival sound. This is a characteristic of natural voices and unamplified instruments that relatively few loudspeakers emulate, and it's the main reason why I prefer horns (waveguide-style contant directivity horns, to be precise).
You mentioned room acoustics also... a good controlled-directivity speaker works with your room, rather than against it, in this sense: Since the reverberant energy in the room sounds like the first-arrival sound, it's beneficial instead of detrimental, and so you don't need to absorb it in order to "fix" anything. Of course you want to avoid slap-echo, but beyond that, you want a powerful, diffuse reverberant field. Indeed, the presence of a well-energized, spectrally correct, diffuse reverberant field is a primary difference between a good recital hall and the average home audio listening room. I can go into detail about some unorthodox ideas for developing that sort of reverberant field, if you'd like.
Best of luck in your multi-year quest!
Duke
dealer/manufacturer