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OP
jayapple
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I've heard that some extraordinary audiophiles can identify the brand and model of the speaker, as well as even the model of the amplifier, just by listening to it with their ears. ha ha!
I wonder if there are any enthusiasts who can scientifically determine the brand of the speaker just by analyzing the sound curve?
I wonder if there are any enthusiasts who can scientifically determine the brand of the speaker just by analyzing the sound curve?
Based only on on-axis measurements, you can't make a good conclusion in this case. Also, it will matter a lot in what room you put these (and where). Their slopes are quite different, as is the bass response. Some rooms (and people) may prefer one over the other.
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Straight line could be a KEF speaker.
terryforsythe
Major Contributor
It depends on what you desire, where you will be positioning the speakers, whether you have a subwoofer, etc. I am assuming those are predicted in-room responses.
If that assumption is correct, the speaker represented by the solid line has a shelved bass resopnse and should be placed close to the front wall and/or be used with a subwoofer. Otherwise, the bass will sound weak. It has more pronounced upper midrange, and this will have a little more attack.
The speaker represented by the dashed line should be pulled out away from the front wall. A subwoofer could be used, but the bass will sound pretty good without one. If that is a chart of predicted in-room response, it is going to sound a little bright. Some people like that, interpeting that as providing more airiness and sparkle to the music.
With either of those speakers I would recommend using DSP for EQ, probably more so to tame the high frequencies for the speaker represented by the dashed line (assuming those are predicted in-room responses).
I am guessing these are the in room estimated room responses? Are you using a subwoofer? Without a sub definitely the dashed line with a sub either would be fine. EQ highs with dashed line if desired. Solid line does look like Kef.
Yeah, it's Q11 Meta
OP
jayapple
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That's amazing! Just by looking at a curve, you can figure out the exact model... I didn't even provide any data. I think being able to guess the brand is already quite impressive.
It seems that I'm starting to believe those "golden ears" can actually distinguish the brand and model of the speakers.
Golden eyes? But the jury is not settled on whether @voodooless got a golden brain or just a gold-plated one!
AD: Would it be correct to assume that the dashed-version is putting out a dash higher SPL? Perhaps better bass management?
With enough data, one can. In this case, enough hearing data. And must be accurate data. You know how to test speakers by hearing, and you heard many speakers.
Just like you don't know what speakers these two are from the graphs alone, but when you have Erin's database of graphs, you can.
And "those golden ears"? They don't have a piece of accurate data. They will go two different random showrooms and conclude a comparison based on that and the tube cables they used.
First, these graphs are unlikely to be on-axis anechoic since that would be horrible results for on-axis anechoic
More likely spinorama-predicted in-room response
I'll take dotted in that case. My current listening position is flat from 2k to 10k
Note that spinorama prediction is not a be-all-end-all and even now there is a debate whether tweeter should be constant directivity or not. A constant directivity tweeter will result in the downward slope flattening out in predicted room response.
More likely spinorama-predicted in-room response
I'll take dotted in that case. My current listening position is flat from 2k to 10k
Note that spinorama prediction is not a be-all-end-all and even now there is a debate whether tweeter should be constant directivity or not. A constant directivity tweeter will result in the downward slope flattening out in predicted room response.
Fq-SPL response curve represents only one of the many factors/aspects of your (our) audio setup including the room acoustic modes/environments, time-alignments, dispersions, reflections, reverberations, etc., etc... "Which (what) Fq-SPL curve would be better" is much dependent also on your (our) subjective music listening preferences.
Consequently, the OP's inquiry in post #1 makes no sense at all, I believe.
Nevertheless, my present optimal/regular Fq-SPL response in my PC-DSP-Based multichannel multi-SP-driver multi amplifier audio rig is like this under the below spoiler cover (ref. here #1,009 on my project thread);
Where, in #1,009, I wrote as follows under the spoiler cover;
Consequently, the OP's inquiry in post #1 makes no sense at all, I believe.
Nevertheless, my present optimal/regular Fq-SPL response in my PC-DSP-Based multichannel multi-SP-driver multi amplifier audio rig is like this under the below spoiler cover (ref. here #1,009 on my project thread);
I well understand, however, my Fq-SPL measurements and the results in this post would not fully represent/re-confirm the following aspects of my audio setup in my acoustic environments:
1. 0.1 msec time alignments among all the SP drivers (ref. #493, #494, #504, #507)
2. transient (kick-up and fadeout) behavior/characteristic of SWs and WOs (ref. #495, #497, #503, #507)
3. presence and extent of sound reflecting wall(s) and possible reverberation thereof (ref. #498)
4. pros of relative gain (tone) controls in analog domain (ref. #438, #643)
5. favorable effects of wide 3D reflective dispersion of high-Fq ST sound (above ca. 7 kHz) using random-surface hemisphere hard-heavy crystal-glass (ref. #912, #921, #926, #927, #929)
6. size of the “sweet sphere” around my listening position (ref. #926, #927, #931)
7. subjectively felt amazing disappearance of SPs (ref. #520, #687)
8. importance of excellent reproduction of 15 Hz - 40 Hz zone low Fq sound in some (many) music tracks (ref. #782, #588, #591, #641, #650, #63(remote thread) )
9. etc., and so on...
I have already objectively and/or semi-objectively measured and discussed above aspects/features in each of the attached reference posts.
After having completed present intensive re-confirmation of Fq-SPL in SP high level signals as well as in actual room sound at my listening position, therefore, I re-confirmed these other “aspects/features” through careful subjective listening session using my consistent “Audio Reference/Sampler Music Playlist” consists of excellent-recording-quality 60 music tracks selected from various genres (summary ref. #669, actual playlist #670, and my independent thread here).
I always prefer rather subjective re-confirmation of those aspects through my daily very much enjoyable music listening sessions in my listening room, in my acoustic environments. Furthermore, it would be always a little bit hard for me describing those wonderful subjective acoustic impressions by words/sentences, in English and/or Japanese.
1. 0.1 msec time alignments among all the SP drivers (ref. #493, #494, #504, #507)
2. transient (kick-up and fadeout) behavior/characteristic of SWs and WOs (ref. #495, #497, #503, #507)
3. presence and extent of sound reflecting wall(s) and possible reverberation thereof (ref. #498)
4. pros of relative gain (tone) controls in analog domain (ref. #438, #643)
5. favorable effects of wide 3D reflective dispersion of high-Fq ST sound (above ca. 7 kHz) using random-surface hemisphere hard-heavy crystal-glass (ref. #912, #921, #926, #927, #929)
6. size of the “sweet sphere” around my listening position (ref. #926, #927, #931)
7. subjectively felt amazing disappearance of SPs (ref. #520, #687)
8. importance of excellent reproduction of 15 Hz - 40 Hz zone low Fq sound in some (many) music tracks (ref. #782, #588, #591, #641, #650, #63(remote thread) )
9. etc., and so on...
I have already objectively and/or semi-objectively measured and discussed above aspects/features in each of the attached reference posts.
After having completed present intensive re-confirmation of Fq-SPL in SP high level signals as well as in actual room sound at my listening position, therefore, I re-confirmed these other “aspects/features” through careful subjective listening session using my consistent “Audio Reference/Sampler Music Playlist” consists of excellent-recording-quality 60 music tracks selected from various genres (summary ref. #669, actual playlist #670, and my independent thread here).
I always prefer rather subjective re-confirmation of those aspects through my daily very much enjoyable music listening sessions in my listening room, in my acoustic environments. Furthermore, it would be always a little bit hard for me describing those wonderful subjective acoustic impressions by words/sentences, in English and/or Japanese.
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Not quite sure how the room looks where these graphs evolved from (RT60, listening distance, all this plays a role here), but anything below 50Hz I would not call a big perceptual difference, if we are not talking about music being rich in energy below 50Hz such as EDM. Situation below 100Hz might easily change with slightly altered positioning of speakers.
I suggest an experiment by replicating these graphs by DSP and judging the differences on good headphones. I bet, the most significant difference will be showing up in brillance bands (2K-8K in this case) being either linear (dotted line), or dramatically underrepresented (solid line), particularly as the latter example comes with additional boosted lower midrange (200-800Hz). Our ears are most sensitive to bands around 1-4K, particularly if they represent harmonics of lower frequencies which in combination defines timbre. We are talking about differences of 5dB, this is very significant.
From neutrality point, the dotted line setup is by far superior, pretty close to ideal in theory. This is not a sufficient statement to guarantee perfect reproduction, though, but with the solid line setup you can be sure to have serious issues.
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The dotted line might be Polk Audio Reserve R700.
www.spinorama.org
Measurements for speaker Polk Audio Reserve R700
www.spinorama.org
Vladimir Filevski
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Dotted line.
Higher frequencies can easily be tamed with basic treble tone control.
That is not "scientifically" based, but simply "raw visual memory" based.
That would be quite juvenile amusement...
And now back to the more serious staff:
Speaker with dotted line.
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