Originally Posted by MUDCAT45
To all that responded to my post.
I agree that the talk is about accuracy. Still accuracy is of little importance if the tone of the speakers fails to satisfy the listener.
If the speaker is accurate then tone is dictated by the source and the room. If you dislike the tone of a sound: there's the spot to play.
Of course, reproduction is more complex than simply the FR response chart. There's what we see in the waterfall plots. There's the degrees of axis. There's whether that line array produces HF over a large enough area that it no longer sounds like a point-source. There are people who will argue that perfect phase alignment matters (though I'm aware of no data supporting that). There are potential issues with breakup and mechanical clipping that may not show in the sweep because of the volume.... There are a number of other things that affect how a speaker sounds.
What Dr.Toole, and this thread in general, are trying to do is tell you, based on the samples, which measureable traits most correlate with the most positive outcome.
I've heard it said "I can't tell you a speaker will sound good based on measurements; but I can tell you it will sound bad" and I agree.
I have owned Revel speakers for a few years. During that time I have owned many others and sold most of them and also have demoed many others.Sometimes I find other brands that sound good for a while then I start hearing things that do not sound as good as the Revels. The Revels just seem to go unnoticed while others have something that stands out and sounds good for a while then you realize that they are only good for short listening periods.
That doesn't seem uncommon. There are many things you can do to sound that initially sound "better", but don't remain so.
My reason for saying accuracy can be measured but not duplicated is because so many comment that they want the sound as it was produced and recorded. That ain't happening.
I have heard lots of live music and most was on speakers that would never measure accurately.
That's production. The goal of a recording and reproduction system would be to mic the output from those non-flat speakers and reproduce it exactly.
Let's imagine that the guitar speaker you liked was +6db @1khz. Cool. That means that the 1khz sound from the guitar will be twice as loud as some other frequency that was +0db.
So you buy yourself a pair of those speakers for home. You mic the live performance and play it back. Now 1khz is +12db from what the guitar produced... you are playing a bright recording through bright speakers.
This is the same problem with deliberately over-driving tube amps in reproduction. When the original artist, or their sound engineer, makes that sound you love, your speakers now double-down.
The only reliable way to get sound you like is with flat speakers. You can always use EQ or DSP to add distortion; but it's much harder to take it away.
But again remember: the rules for production and reproduction are different. No one here has argued that the best guitar amps aren't over-driven or that the best guitar speaker is flat.
Still sounds better than any home system I have heard. The closest thing to real that I have heard in recent years was Klipsch Jubilees. You all know how accurate they would measure. Problem was they got real tiring in a short time.
Most consumer Klipsch speakers hurt my ears.