Thank you this is very helpful! I learnt that the HSU sensitivity numbers are misleading as well since they are half space etc. And now I find out the horn isnt a compression driver. So that's out.
What are your thoughts on the JBL 230 vs Klipsch?
Compression drivers are a ton more sensitive, however, horn loading of titanium drivers still greatly improves sensitivity. Klipsch sensitivity is also measured as “in room”. Regardless, they play a whole lot louder and are much more dynamic than any direct radiating speaker of similar size. The sole reason I would recommend Klipsch over the hsu is because the horn is designed for better controlled directivity, exponential horns beam at high frequencies and have much more narrow coverage off axis. In addition, aluminum drivers featured in Klipsch speakers are much more efficient than paper/poly drivers, since they don’t have the same “lossy” damping characteristics.
Based purely on reviews, the jbl 230 is probably less accurate, it doesn’t feature a horn, but a very shallow waveguide that probably doesn’t offer much loading. Something like the 580 or 590 would definitely work though, and actually does feature a compression driver.
The horn in the Klipsch premier and reference sounds good anywhere in the room. The timbre does not change when sitting off axis, or standing up above the speaker. They also are fairly immune to room placement since the reflected sound is nearly identical in response to the direct sound.
A 90 degree pattern in the Klipsch horns is more than wide enough, chances are, if you’re sitting more than 45 degrees off axis, you probably are going to struggle to see the TV lol.
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