Quote:
Originally Posted by
deefdeef
β‘οΈ
I read a few times over here about this "wonder of sound/size -ratio" of the neumanns and I'm wondering if it that kind of placebo thing that pushes them over the others.
If they sound as big as the 7" Adams you maybe start to think they sound even bigger because of their size - ya'll know what i mean?
Speakers can sound big and deep, without being it, but you can never break the laws of physics. For example if you want to make a small speaker sound like a big one you increade the width of the speaker to increase the baffle area, more sound (lower frequency) gets diverted straight ahead instead of sneaking around the baffle. You get a 3dB boost over a certain frequency in directivity. and the formula is "when the wavelenght is longer than the baffle width you lose 3 dB since it gets omnidirectional" 348(m/s) divided by baffle width in meter is the frequency or in reverse if you divide 348 by the frequency you get the baffle width where it starts boosting 3dB.
You can make a small speaker go deep but then you give up high spl, because the diaphragm needs to have the excursion squared to produce half of any given frequency for the same spl, you quickly run out of excursion and more excursion means = can go louder. Sound is just an overpressure in the air.
the main thing many people forget is that for a speaker to be able to produce high spl and deep bass, it needs to be. 1 - Big (lots of liters cabinet), 2 - have longish xmax, 3 - lots of surface area of the diaphragm. And you also want it to be sensitive regardless of how many watts the amplifiers have, but you get sensitivity with cone area and cabinet volume.
Smaller woofers have smaller voice coils so they produce higher frequencies better at the expense of powerhandling, they simply short out and burn.
Producing speakers is not magic, its game of compromises. Since whatever you do its always a compromise, you
increase something on the expense of something else. There is no magic involved at all. But if you fully understand what the compromises are you can exploit them, to an extent, until the physics say no. But there is room for improvement in lots of speakers, one thing is not trying to push small speakers very low for instance, no need for it, you only reduce the max spl. And they are already mediocre (at best) at producing deep bass no matter how you do it because they are small (liters) to begin with.
Of course you could increase xmax, but then you introduce distortion, and distortion is something small speakers already have a a lot of in the bass department, like 10% or much, much more. Luckily humans can't hear distortion in the bass range very good. So here you can take advantage of something even though you "shouldn't".
Its about making the right compromises and prioritizing right, thats all.