All those drivers are nice to experiment with but they are all too small for reproducing loud sounds. They will distort and compress.
You want to look at something in the 8" range to get distortion down. And even then you'll need a subwoofer.
Full range drivers will beam quite a lot at higher frequencies which makes them unusable for close field listening unless you're fine with listening with your head in a vise.
There is a (good) reason why multi-way driver speakers exist. But make no mistake, this approach has other issues.
Did you read his comments on this specific application? (post #83 above)
As accurate as some of your statements of fact might be, it sounds to me like one of the better FR drivers on his short list might be more than adequate in this case.
As accurate as some of your statements of fact might be, it sounds to me like one of the better FR drivers on his short list might be more than adequate in this case.
If he's really just looking for a good midrange driver then the Alpairs don't fit. They all seem to have this dip around their "mechanical crossover point".
For nearfield listening I would go for a classic 3-way concept with a large dome midrange.
I measure all my speakers before listening to music with them and have not found a speaker that measures well that sounds bad. If it has smooth flat response, clean impulse, low distortion it will shine when you play music in it for all genres. A speaker that has peculiar dips and peaks can sound great but not for all genres - some types of music will expose the dip or peak. I have also not seen a measurment showing a significant breakup peak circa 9k to 15k that doesn't show up as sibillance or ringing in the impulse response. It has to - that is the nature of a peak when you do the inverse FFT.
So in short, a speaker that measures well will, IMO, sound great. A speaker that sounds great, may not measure well, but will not always sound great.
I totally agree
but I can take two speaker that measures well, and one can destroy the other speaker and be much better.
though both measure well.
Then you haven't measured an important characteristic. Most likely max SPL and dynamic headroom, or directivity and polar response.
On a synergy horn - it will destroy any open face speaker if you only look at FR, IR, HD. Look at max SPL and dynamic headroom above program SPL, look at directivity and polar response and you get more of the story. The reduction in "spray" off room walls with a horn is huge. Once you listen to one you will never see an open face direct radiator speaker in the same way again.
okay!
thanks
but, I dont understand
where can you see in measurments:
soundstage, resolution, tone, ect
thanks
but, I dont understand
where can you see in measurments:
soundstage, resolution, tone, ect
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DDR for instance. A simple test would be to take 2 signals, one 30/30/50 dB down. What is the FR of the small signal. Is it buried in noise.
Tests with signal much closer to music.
Scientific studies that correlate ear/brain perception with the tests. Damn few of them. One for instance (not duplicated yet (likely because no one has been inclined to)), that shows measured distortion in speakers is more or less irrelevant. Another (verified)that human time perception can be VERY good (~5 ms)
dave
Tests with signal much closer to music.
Scientific studies that correlate ear/brain perception with the tests. Damn few of them. One for instance (not duplicated yet (likely because no one has been inclined to)), that shows measured distortion in speakers is more or less irrelevant. Another (verified)that human time perception can be VERY good (~5 ms)
dave
I think soundstage has to do with phase and spatial coherence from 500Hz to 6kHz where spatial cues are derived from. Most full range drivers will be very good at this but some are better than others. Soundstage is also better with speakers that have better directivity rather than spraying sound all over the walls.
Resolution may have to do with transient ability and very short rise and fall times in response to a step function. Pleated diaphragm AMT tweeters have this ability as they have very light mass and are responsive. Resolution is also muddied up if a driver shows excessive ringing (can be heard as sibillance). Again, AMT's have very little ringing (as do beryllium some tweeters).
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planet10, regarding DDR and some MA drivers it can be enjoying listening, my skeptic goes when listening all other brands of speakers or headphones and the details level ain't there my logic says that we are coloring the track with details the producer was not able to hear.
yes, resolution and imaging and soundstage is closely related to phase and making the two drivers (for a two way) integrate in term of timing indeed. if you screw that, you cannot have resolution of course. I think that this is the most important thing, timing of the drivers and phase that will determine resolution, soundstage ect.
but I think there's more to it and measurements cannot show how detailed a speaker is I think, maybe im wrong.
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A difference of opinion is one thing, a constructive debate another, but the said posts have "troll"
written all over them. Chasing one's tail gets boring & moves nothing forward.
At a time there where personal and probably business lobbying real world stuff enough for a movie script, eyes sometimes see different things in real world and should not be a problem in reality, now normal and never happened again.
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