Should the best systems sound almost identical?


If the overall goal of audio equipment and the various media types is to reproduce recorded music the way it sounded when it was being recorded, then it seems that as an audio system gets closer to achieving this goal various systems should sound more and more alike.

For example, in a utopian world my stereo system would so perfectly reproduce a singers voice that if they were standing between the speaker you couldn't tell the difference in an A/B test. If the equipment is adding a characteristic sound the listener would be able to tell a difference. The less of the systems characteristic sound the closer to the actual singer the recording would be.

Taking this another step, does it make sense that the "better" speakers are the more they should sound the same? Should they not be getting closer to the perfect reproduction of the signal that is given them?

How about the Focal Grande Utopia speakers that retail for $180,000 vs. some of the crazy expensive MBL stuff. I'd venture a guess that they sound nothing alike. Almost seems like speakers at this level should almost be interchangeable in a system at least at the sweet spot.
mceljo

Showing 2 responses by mezmo

Let's, for the sake of argument, take an extreme position:

Look at it this way: would you expect that one $2+ million Stradivarius violin will sound the same as another? Or as a $1,000 violin? No, I would argue, of course not. Yet, they are all made, to the greatest extent possible, to be physically identical; the goal is to make violins that are physically and acoustically the same. Try as we might, can’t be done.

So, why should we expect any two speakers – let alone any two speakers that are physically, electronically, and acoustically radically different – to sound the same reproducing the different sounds produced by intentionally identical instruments? It is, I would again argue, entirely (physically, in accordance with the laws of physics, etc) impossible. Full stop.

Try an extreme: if “neutral” “transparent” “100% invisible” “disappearing” or any other manner of verbiage amounting to the claim that this X, Y, Z is so unspeakably wonderful that it simply vanishes to present one with an uncolored magical connection with the true essence of whatever is recorded on any given random piece of software turning in circles someplace in the chain were anything other than meaningless marketing pabulum, then why not take one of your Focals, mate it with one of your MBLs, and call them the perfect stereo pair. Hey, if they are each the perfect realization of some platonic ideal of sound reproduction, mix and match: no worries. Unthinkable?

Or another take: a tweeter blows on one of your speakers. Do you replace it with a Rat-Shack, off the shelf tweeter of the same size and specs, or do you get as close to a matched replacement from the manufacturer or, barring that, scrap the working one and reinstall a matched pair? (Verity, e.g., keeps records on the specs of each an every driver they ship in order to be able to supply a matched mate for just this occasion). So, identical enclosures, identical electronics, slight variation in a single driver = completely unacceptable – yet we’re discussing whether two things that are 100% different in every way could sound so close to identical as to be interchangeable?

Clearly, I have an opinion on this one. Put me firmly in the camp believing that uncolored, “objectively true,” musical reproduction is a myth. Marketing nonsense. Yes, it is the goal. Yes, we all chase it. Yes, one might inch ever “closer.” Yes, one may honestly believe that A is objectively “more invisible” than B (while their neighbor believes the opposite…). But it’s a lie. Everything adds color. Every design is a product of choices, and each choice has an impact. Enjoy – revel in – the boundless pleasure that music brings to life; the infinite variation of each voice, instrument, the equipment used to record, the choices made in the mix, and gear used to reproduce them all. But, really, let’s not kid ourselves.

Anyway, that’s my story, and I’m sticking to it. (And yes, all that said, I certainly believe that my present setup is more “real” than any other I've had before, and various manner of possible alternatives. Inconsistent? Hypocritical? Meh....I’ve been called worse.)
The discussion of the appropriate metaphor has actually been very helpful.

First, where we seem to agree. Different things sound different. A violin sounds different from a bass. A trumpet will not sound like a sax. No one will ever confuse the Vienna Boys Choir with the muppets Christmas album (which my wife nonetheless insists on subjecting me to every year. Something about childhood. Jeesh.) Doesn't matter what you reproduce these sounds on, you will hear the difference. I can hear the difference on the mono 1mm speaker on the iPad. Anything will be up to the task.

Second, things that are supposed to be the same can also sound different. One piano -- or any other type of instrument -- will not sound like every other piano. Ah, you say, but there are different types of pianos, of course those sound different. Yes. But it starts to get more interesting as we narrow our comparison set. Back to violins: folks who are trained to appreciate the differences can perceive the distinctions between, say, a Stradt and something else. Some will perceive the distinction between one Stradt and another. Yes they are more similar than different, thus identifiable as a class, but also individually distinguishable. They sound different. Could I hear that difference? Not a chance. My brain hears "violin" and stops processing -- it's never been trained to parse finer. Example, like why US troops used "lalapalooza" as a password in Asia during WWII. Certain languages do not contain sounds to distinguish between "L" and "R." If you grow up speaking said language, your brain never develops the processing bandwidth to make that distinction, and while your ears will hear the difference, your brain will simply not register it, and you won't perceive it. Same with violins or, for that matter, everything else. But a useful concept for the discussion: the difference between making (or reproducing or "hearing") distinct sounds and the ability (training, expertise, cultural, etc) to actually perceive the distinction.

This, of course, is where one may be prone to veer off into the mental masturbatory quagmire of debating objective vs subjective based reality. Is the world comprised of objectively verifiable truths, independent of any perceptual framework, or is all reality ultimately dependent on, and mutable as a product of, the particular lens through which it is being perceived? We won't be solving that one today. Just let's stipulate that folks have been debating that one for as long as there have been folks, you'll likely instinctively feel that one makes more sense to you than the other, and just make peace with the fact that about half of the people out there will think you're wrong. Moving on.

To return to the regularly scheduled programming, all of this discussion on one level misses the mark in that we're talking about original source material (a violin) rather than the task of reproducing that original source by recording it and then playing it back. One might observe, but the issue isn't whether the two violins sound different, but whether the recording and playback exercise can preserve and reproduce that distinction. I would argue, this is only partially correct. First, yes, can be reproduced. Second, however, this line of inquiry potentially confuses the issue. The ability of two sets of speakers to reproduce the ability to distinguish between two violins in no way means that either speaker sounds like the other one, or that either is closer to "truth." Guess the only way to do that would be to put the original head-to-head with the recording and see how that goes. In short, an "apples to apples" comparison (violin vs violin) ain't our project, we really need an "apples to oranges" comparison (violin vs speaker) to address our question. Yes and no.

The violin vs violin analogy becomes interesting if we, for example, contemplate comparing two identical pairs of speakers, coming out of the same plant on the same day. Will they sound identical? Only practical way I can imagine to do such a comparison would be in the testing room at the plant, on identical equipment, in the same controlled environment. Would the two sets of speakers be indistinguishable? No idea. Bet the manufacturer hopes so. Bet that's, in fact, exactly what they test for. Do all the speakers "pass"? Doubt it. If drivers are carefully "matched" pairs, must be a reason -- and that reason necessarily implicates that "unmatched" drivers, say, as between two otherwise identical pairs of speakers, sound appreciably different, at least to the ears of the designer. Otherwise, why bother? Say we then ship the two pairs of speakers to different customers, who install them in different rooms, on very different systems. Will they sound the same then? Almost certainly not. And say they continue to play for ten years in those different systems -- if we then ship them back to the manufacturer for a turn in the identical test system, in the same room, are they going to sound the same (or as close to the same) as they did when fresh off of the line? Again, no idea, but a lot more reason to question the proposition....no?

If we assume all of the preceding (your call), the question becomes whether one could reasonably expect two entirely different speaker systems (different manufacturers, electronics, enclosures, drivers, materials, sizes, designs, etc) to sound indistinguishable -- not because anyone ever intended them to be identical -- but almost by accident because each was independently designed to be able to sound like, for example, the same recording of the same violin. That's really the question, right? My response is, if we can't reliable make two violins that sound identical, if we can't even reliably make two identical speakers sound identical -- even when we're trying really hard -- how could we expect two entirely different speakers to sound identical by accident, just because they were aiming at the same target? Might it be possible? Sure, and infinite monkeys are bound to pound out Shakespeare. But I don't see it happening. (BTW, I think this is fun, not that I am entirely sure I like what that says about me....)