A Subjective Blind Comparison of 3in to 5in drivers - Round 2

Which file do you think sounds best.

  • A-Clip

    Votes: 10 20.0%
  • B-Clip

    Votes: 5 10.0%
  • C-Clip

    Votes: 3 6.0%
  • D-Clip

    Votes: 7 14.0%
  • E-Clip

    Votes: 13 26.0%
  • F-Clip

    Votes: 5 10.0%
  • G-Clip

    Votes: 7 14.0%
  • H-Clip

    Votes: 0 0.0%

  • Total voters
    50
  • Poll closed .
The A7.3 does have a higher than average distortion peak around 1.5kHz. I wonder if that is what you are hearing?

483897d1432037311-subjective-blind-comparison-3in-5in-drivers-round-2-a7.3-hd.png

I noticed this with many drivers...when Norah voice gets lower (at the end of the track).
 
Look at the tracks side by side on Audacity. Visually they look very similar amplitude wise - there is no canceling - what you hear are the frequency dependent voicing of the drivers and its interaction with NJ's voice. I don't think that is a microphone effect either - it's the distortion peak.

Driver G got the most care in terms of special treatment - break in, careful handling, etc. I am surprised that you guys keep picking out the sound recording's flaws as if the sound quality was affected by how it was recorded when in fact it was done with the most care compared to all the rest.
 
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😀Good work and thank you X!
I enjoyed these blind tests very much and it's an eyeopener for me.

Things that I learned so far:
• Frequency response is important
• Trust your ears
• Some of the more vocal regulars here on the FR-forum, often propagating for drivers that to my ears (and in you're datasets apparently)... sucks.

I can see that this will upset some of them, but you're right X 😉
 
I'm surprised about this discussion over the sound clips. They do pretty well for what they are. Come to think of it being mp3's that could be a source of fault all by itself. But they had to be small enough to upload and I understand this choice (not a fan of mp3 myself).
You can't beat auditioning the speakers yourself in your room. But what X brings to the table here does help! You can hear impressions, mono, right ride from a track and actally be able to compare the speakers, judge the graphs and numbers and try to find a correlation there (one that I think is very real). All that at no cost except for your time spend.
I think it's a great service X provides and beats blabbering on and on about these things without any useful result.
Don't forget your own listening chain when judging these files. I know, everybody has the perfect setup already 😀.
 
Yes, but unfortunately, sometimes we have to get into subjective "preference/taste" territory.

Imagine this: signal moving from stage A to stage F. At stage A (assume a recording stage) the signal is distorted, or something is missing. At stage E the distortion is maximum. Now at stage F you have the option to be honest/pure, or you have an algorithm to reconstruct the final signal so it will be closer to it is before entering A. I cannot see a reason to force others with "my religion is the correct one, yours is wrong" here.

In loudspeaker design, there is this low level reverberation that is often exist in good recording. This information may be lost in the chain, or it might not exist from the recording. But there is a possible way to create or recreate this "vibrant" sound using loudspeaker panel vibration. So it is up to you to pick your religion here, using perfect box like Magico, or using resonative panel like Audionote, Harbeth etc.

Imo/ime, if you want to be pure/honest and still see a good result, you have to be pure/honest all the way from A to the end of the stage. And you know what it takes...

.......and that's what a blind test does......removes the subjectivity and bias of ones own preference for what they believe might produce a better driver. Cone material, IR, DR, etc. Throw it all out with the bath water if you want to reveal the 'truth' as you say. Clearly your own selection does not mimic your subjective and biased preferences. Time to clear the table and ignore your expectations.
 
I'm surprised about this discussion over the sound clips. They do pretty well for what they are.

C'mon... We are adults. Put insecurity aside... No doubt that X works are great and very credible. It is normal if some people are not happy with the final result.

But here is a genuine question, a very simple question (and easy answer too) from Peter which deserve an answer:

Eh, was it only me that heard the weird break up of Norah Jones voice at the end of clip G???? I.e. A7,3.
This was heard through my Grado, Sony earbuds and Genelec Monitors….
 
I suppose that it is time to mention that I picked the A7.3. Really. I was using a pair of ear buds rather than my stereo that uses A7.3 on top of RSS315HF-4's. It just happens to be the sound I like. I thought that the A7.3 did a better job on cymbals.

IMO listening to mono clips gives only the vaguest hint of what a stereo pair will sound like. When I started the test, I added the "original" to the play list. I thought that all of the clips sounded like crap compared to the original. Then I realized that I had forgotten to downsample the original to mono. Once I did that, the original sounded like crap too. Then I could proceed with the test.

Something to note about most "full-range" drivers. Most, not all, will show a peak in the sibilance range that is the main cone break-up. Most, not all, "full-rangers" need a notch filler to remove or at least soften this peak. Fostex, Lowther, most Tang Band's sound seriously better with a notch filter.

Bob

The stereo spectra has little to do with the individual driver but instead the recording pan, room, speaker placement and amplifier channel seperation. If the driver has a resonance in mono, it will still be there in stereo, just twice as loud in the nearfield..............

And yes, most full range drivers do have a sibilance peak related to cone break up. But if we're going to throw filters at it, why even bother with full range when a dedicated HF element can certainly handle 2k content better than any of these presented?

With the ease of tuning using today's available DIY DSP options, the practicality of Fullrange options becomes nearly obsolete. The 10f being so small in size permits for excellent options for a true three way that when executed properly will easily surpass the performance of ANY full range option from both response, HD, dynamic capability, bass extension, power handling........etc etc etc.

But in reality, we as diverse individuals prefer music to sound different for some. XRKs test shows that 'most' of us prefer the same and hear the same. No use in accounting for the differences that others prefer any more than wondering why some like moldy cheese or Merlot. Lol
 
.......and that's what a blind test does......removes the subjectivity and bias of ones own preference for what they believe might produce a better driver. Cone material, IR, DR, etc. Throw it all out with the bath water if you want to reveal the 'truth' as you say. Clearly your own selection does not mimic your subjective and biased preferences. Time to clear the table and ignore your expectations.

No I think you don't understand... (you can ask and discuss if you want, coz I think you've made a wrong assumption)

Blind or not blind it's the same for me. Nothing changed what I have already known. My preference doesn't change either.
 
But here is a genuine question, a very simple question (and easy answer too) from Peter which deserve an answer:

Originally Posted by peterbrorsson View Post
Eh, was it only me that heard the weird break up of Norah Jones voice at the end of clip G???? I.e. A7,3.
This was heard through my Grado, Sony earbuds and Genelec Monitors….

Simple answer: Because it was there - actually produced by the A7.3. I provide below another recording of the A7.3 made at 160hrs after break in began. You will notice the same "crackle" sound at the same spot that you are all fussing about. It is intrinsic in the driver - this was recorded on a different day - same effect. Doesn't look like the extra 40 hrs of break in remedied this.
 
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(not referring to new clip that happened to be above this post, that doesn't have the noise I mean)
yes flaws in NJ G clip at 36 seconds are in the recording posted here, yes recording chain isn't perfect

the second point I had with same clip was that basis female NJ voice had gone, as if that driver had least extended frequency respons, it turns out to be the Alpair 7, which has the most extended frequency respons downwards, of compared drivers I would say, so, it is probably in XO range were this fundament of NJ voice disappears, maybe even entirely in subfrequency range??? just googled and 160hz is what I read, NJ probably higher???
 
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X, there is low frequency "blurp" in the previous G file (doesn't exist in your last one). It's from the Dayton, not MA.

I was not referring to NJ voice tho, because the song already stop by then. It is the end of the clip.

About the sound, no doubt, it is f***ed up like I said from the beginning. And I know that your MP3 files quality are more than adequate to present the real driver sound (at least for experienced listeners like me)
 
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Simple answer: Because it was there - actually produced by the A7.3. I provide below another recording of the A7.3 made at 160hrs after break in began. You will notice the same "crackle" sound at the same spot that you are all fussing about. It is intrinsic in the driver - this was recorded on a different day - same effect. Doesn't look like the extra 40 hrs of break in remedied this.

No the noise isn't in this clip, this clip ends when noise starts in G clip in this thread
Bass is better so is basis NJ voice in this clip
 
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Simple answer: Because it was there - actually produced by the A7.3. I provide below another recording of the A7.3 made at 160hrs after break in began. You will notice the same "crackle" sound at the same spot that you are all fussing about. It is intrinsic in the driver - this was recorded on a different day - same effect. Doesn't look like the extra 40 hrs of break in remedied this.

Haha, "crackle" is the word I looked for. Although I'm not sure if a reviewer would use such a "low" term;o)))

So you've heard it also! How loud do you go when measuring distortion? Don't hang me now, but I believed a German magazine measured up against 15% harmonic distortion peak around 1.5kHz. But don't take it as truth as I'm not home to check it…

I can't do more than take your word for it. I asked just once about the file and you cleared it up. Regarding mp3 files good or not, most people would be surprised if blind testing a 320kb mp3 against high resolution files;o)) Even the golden ears as some claims they have…..
 
No the noise isn't in this clip, this clip ends when noise starts in G clip in this thread
Bass is better so is basis NJ voice in this clip

Sorry, the 160hrs clip was recorded at a different point in recording, and ended a bit before the spot you are talking about but I thought I heard the crackle elsewhere.

Here is the clip at 80hrs after break in. Let me know if you think you still hear it.
 

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I can't do more than take your word for it. I asked just once about the file and you cleared it up. Regarding mp3 files good or not, most people would be surprised if blind testing a 320kb mp3 against high resolution files;o)) Even the golden ears as some claims they have…..

It really isn't that good if you know what to listen for. I'm not claiming golden ears here. I have done the ABX listening tests in the past, triggered by what I heard (or didn't hear) from mp3's. I'd rather have AAC at that same bitrate.
To me, in my own testing it was the superior codec. That's what I use if I can't use FLAC.
But for this test? It is good enough to be able to form an opinion on these drivers. And as such it served it's purpose. But there will be harmonics/details lost in mp3, no way around that.
And yet we are on the full range forum, where no crossovers preserves way more harmonics than any crossover ever could.
But that wouldn't allow us to run this test, to control this test the choice was made to make it a FAST setup.
It wouldn't be possible otherwise. How can we make sure all drivers have the same extension in bass etc. You'd need a different box for every driver.

I'm certainly no Golden Ear but on the subject of mp3 I'd advice people to take the tests and make up their own mind. I did that part for myself and moved on.