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
I've been doing critical listening lately from 12-24" away. You can hear a lot more hash and detail from the driver than the normal 6-10 feet. Cuts out room interactions too.
I don't know why but listening farther away smooths out the sound and also removes a lot of micro-detail.
I've been doing critical listening lately from 12-24" away. You can hear a lot more hash and detail from the driver than the normal 6-10 feet.

You may have an issue with room acoustics (extremely common - so don't worry) - if your space is fairly reflective and on the small side then it can clutter the sound - you need space between primary direct arrival and reflected sound in order for things to sound clean and clear.
Upon careful reading and re-reading of Byron's well written initial post, it seems to me that it makes perfect sense, and that it proposes an evaluation criterion that will often be useful.

Al, We agree (as usual) - see the first posted reply in this thread.
I started this thread with a proposal about how to identify neutrality in an audio system. The thread has become largely a debate about (1) the existence of neutrality; and (2) the value of neutrality. Several of the posters who deny the existence or value of neutrality have contrasted it with the existence and value of resolution and transparency. In light of that, I have a new proposal, one that addresses both the existence and value of neutrality. Here it is:

RESOLUTION + NEUTRALITY = TRANSPARENCY

Let’s define some terms:

RESOLUTION: The amount of information presented by a component or system. In a digital component, for example, resolution is measured by bit depth and sampling rate. But I take it that it is uncontroversial that every major component of an audio system, and the system as a whole, can be evaluated as to its resolution, whether that can be measured or not. Resolution is, of course, a matter of degree.

NEUTRALITY: The degree to which a component or system is free from coloration. Once again, this does NOT refer to coloration in the recording, but only to coloration introduced by the playback system. I have argued above that neutrality, like resolution, is a matter of degree.

TRANSPARENCY: The degree to which a component or system is sonically “invisible.” Transparency is a visual metaphor for something that is not visual. As the metaphor is used by audiophiles, a component or a system is transparent when it allows the listener to “see through” itself and perceive the recording, the event, or the music. Transparency, thus understood, is also a matter of degree.

The current proposal is that, as the resolution and neutrality of a component or system increases, so does its transparency. This can be understood in terms of four prototypical systems:

LOW RESOLUTION, LOW NEUTRALITY:
This system lacks detail and it makes everything sound the same. Think: A boombox.

HIGH RESOLUTION, LOW NEUTRALITY:
This system has lots of detail, but there is a certain “sameness” to everything played through it. It always sounds like THAT system.

LOW RESOLUTION, HIGH NEUTRALITY:
This system lacks a certain amount of information or detail, but it is a chameleon. It’s hard to pin down what the system sounds like, since it sounds different on every recording.

HIGH RESOLUTION, HIGH NEUTRALITY:
This system provides the information missing from the last system, while also being a sonic chameleon. It has a high level of detail within a recording, but also a high level of variety across different recordings. It's easy to get lost in the music when listening to this system, since the system itself never seems to “get in the way.” Of the four systems, this is the most TRANSPARENT.

These hypothetical systems are merely prototypes, in the sense that they describe categories whose members are (1) joined by resemblance, and (2) differentiated by degree.

I hope that this proposal illustrates the value of neutrality, insofar as it links neutrality to other sonic characteristics - resolution and transparency - that are valued by the the detractors of neutrality.

Fire away!
I like this definition, but what about imaging? Couldn't a system have a high degree of both neutrality and resolution, but have fuzzy image focus? That would tend to disrupt the impression of a live event or a well-integrated studio recording, and make the system fail to disappear as required by transparency. Or does resolution (in stereo) necessarily require imaging?