How do you judge your system's neutrality?



Here’s an answer I’ve been kicking around: Your system is becoming more neutral whenever you change a system element (component, cable, room treatment, etc.) and you get the following results:

(1) Individual pieces of music sound more unique.
(2) Your music collection sounds more diverse.

This theory occurred to me one day when I changed amps and noticed that the timbres of instruments were suddenly more distinct from one another. With the old amp, all instruments seemed to have a common harmonic element (the signature of the amp?!). With the new amp, individual instrument timbres sounded more unique and the range of instrument timbres sounded more diverse. I went on to notice that whole songs (and even whole albums) sounded more unique, and that my music collection, taken as a whole, sounded more diverse.

That led me to the following idea: If, after changing a system element, (1) individual pieces of music sound more unique, and (2) your music collection sounds more diverse, then your system is contributing less of its own signature to the music. And less signature means more neutral.

Thoughts?

P.S. This is only a way of judging the relative neutrality of a system. Judging the absolute neutrality of a system is a philosophical question for another day.

P.P.S. I don’t believe a system’s signature can be reduced to zero. But it doesn’t follow from that that differences in neutrality do not exist.

P.P.P.S. I’m not suggesting that neutrality is the most important goal in building an audio system, but in my experience, the changes that have resulted in greater neutrality (using the standard above) have also been the changes that resulted in more musical enjoyment.
bryoncunningham
since all components are inaccurate, one cannot achieve perfections. coloration will always be present. perhspas a better term to use is a flat frequency response. get a spectral analyzer, pink or white noise and measure deviations from a flat frequency response. such an approach is objective. the other ideas are completely subjective and since perception differs, there will be disagreement. stick to objective terms which can be measured when dealing with accuracy, neutrality and transparency.

i must admit i am in the subjective camp. if i like the sound or if it doesn't drive me out of the room i'm happy. subjective analysis is a highly personal endeavor and meaningful to one listener.
how about thinking of the lower amount of distotion in the system from source through speakers the better it will be true to the material on the cd -record tape etc--neutrality is very hard to concieve of in this medium where each component adds or subtracts from the source material--another thing to be defined :)
Fascinating posts, guys, deserving of a more serious response. I agree with blindjim that transparency is a much better term for what we are talking about here. Music is not, and never should be "neutral." As a professional musician, the term has always been hilarious to me when applied in this context. No musician wants to sound "neutral," that's for sure!

And Vandermeulen, no good engineer would start from some strange idea of "neutral," either. One of the reasons recording studios are so dead is because then the engineer can make the recording sound however he wants easier ("coloration?"). No real performing space is "neutral" - the room's acoustics always have a huge effect on the musician's sounds (natural coloration, if you will). If an orchestra is on tour, for instance, playing the same piece several nights in several different venues, there are constant adjustments made to account for the different acoustics. This is one problem with the concept of "the absolute sound." Which hall is supposed to be the example of this? There are a great many different answers to your final question - what is the music supposed to sound like? No two engineers or musicians will agree exactly, nor should they.

So to get back to the OP's point, then, I don't believe that "neutrality" should be a reference point. The reference point should be what you want the music to sound like, which for most of us is as close to "live" as we can get (and this will take the sort of study that Vandermeulen was talking about, to decide what you think it should sound like). I agree with blindjim, there is no such thing as "absolute neutrality" or transparency in a piece of audio equipment - there is always going to be some designer bias, whether he/she is even conscious of it or not - the equipment will sound how the designer wants it to.
Because concensus will be difficult to achive with many ways audiophilia can be understood, explained, etc, the only true way is with experience. Period. Experience will help you define you own dictionary. Then, each one's dictionary will in some ways resemble others, or differ. Someone who has had more opportunities to listen to different equipment will have a more defined sense of neutrality. As with everything else in life, experience is more important in attaining an understanding than a carefully sculpted word. After all, does life imitate art (human creativity)? Or does art imitate life?
"the strange idea of "neutral"

Neutrality is about balance-- the notion of nothing more and nothing less, nothing added and nothing substracted. In this sense neutrality is more descriptive and useful than transparency.

"all components are inaccurate... I must admit I am in the subjective camp..."

This position is at least consistent.

"there is always going to be some designer bias"

Unfortunately the idea of designer bias is more commonly rooted in cost constraints than designer bias.

"a better term to use is a flat frequency response"

Ignores correct pitch & timbre, the hallmark of a high-end system.

"No real performing space is "neutral"...the room's acoustics always have a huge effect on the musician's sounds...The reference point should be what you want the music to sound like."

Does the room in which the playback system resides really affect sonics as much as the original recording space? IMO not true of any high-performance system-- particularly at lower volumes.