How Black is Your Background?


The term "black background" is bandied about quite a bit by cable makers. But has anyone actually ever seen one? Of course, this a visual metaphor because the sound of music is not black, nor is the absence of music black.

If we change the wording, what does that elusive "silent background" actually sound like? The only times I have ever hear a silent background in my system are before the music starts playing and after it stops. Are cable manufacturers and reviewers just pulling our collective legs with a wonderful marketing term -- selling the concept of a "black background"? Or is there more to this than meets the ear?

Here are some of the terms that cable manufacturers and reviewers use to describe the "black background". Can you pick out which term applies to your system? Can anyone explain the differences between these multifarious descriptions of blackness?

“dark background”
“black background”
“blacker background”
“blackest background”
“an almost eerie, black background”
“super-black background”
“liquid black background”
“black hole background”
“exquisitely black background”
“inky black background”
“surprisingly black background”
“absolutely silent and black background”
“velvety black background”
“naturally black background”
“jet-black background”
“totally black background”
“deep black background”
“wonderful dark blackground”
“drop-dead silent background”
“pitch black background”
“quiet black background”
“blacker quieter background”
“blackest background possible”
“blackest background that you have ever heard”
“darkest blackest background”
“very black background”
“darkest and blackest background possible”
“blackest of backgrounds”
“blackest of black background”
“enhanced black background”
“deep dark background”
“impressive dark background”
“ultra black background”
“dead black background”
sabai
We've basically got three different reference points going in this discussion: 1) the definition of complete silence; 2) what's going on in the quiet parts of a recording; and 3) the background noise and linearity of the playback system.

For number 1, Sabai is absolutely right - silence is silence and you cannot get any "blacker" than nothing.

For number 2, Gbmcleod is correct in that different concert halls sound different, but that really isn't complete silence, whether it is the rumble of the HVAC system or a nearby subway or the decay time involved at various frequencies. You hope the recording you have has accurately captured that along with the rest of the music. But there are often limits. This is particularly true with analog recordings, since a 60 or 70 dB dynamic range is about the best they can do. (Some people do get all excited to hear chairs creak and mike stands get bumped, but that's not really "music".)

Number 3 is the only one really tied to something a listener can control with his choice and setup of equipment. One aspect of that is background noise, but most modern equipment is very quiet in this regard. The source does require care since turntables can rumble and suffer feedback, tapes hiss and low-level signals can suffer RFI issues. Linearity is also an issue since some components, particularly speakers and their interaction with the amp, can compress or otherwise exhibit non-linear behavior as the volume dynamics scale up and down and change frequencies.

The catch with number 3 is, as with many things in audio, some people may prefer those non-linear colorations and describe them in glowing terms. That's fine -- people like what they like -- but I just wish they could scale back the hyperbole a bit.
Pitch black background, powerful and balanced quick, well defined basses gradually entering the mid freqs, clear mid freqs clearly positioning the instruments in space, and solid and well defined high freqs managing as well smoothness as harshness, and those features in a fast response, dynamic and transparent sound. It summits up all that I wish for on a Hifi system.

Pitch black background is just one of the wished proprieties.
When you manage to have a hifi system that sounds on speakers as good as on a high quality headphone / phoneamp set, you know you made it. It’s a peaty the process takes so many dolars in the way.