The Absurdity of it All

@stuartk, sorry about my delayed response. The visceral sensation is created by frequencies below 300 Hz. It is in this region that room acoustics cause the most trouble. Go to a rock concert at a large indoor venue and you get very powerful one note bass, boom, boom, boom. Go to an outdoor venue and you get beautiful bass. However, small indoor venues like Jazz clubs and larger indoor venue where acoustics were appropriately managed like Boston's Symphony Hall can give you wonderful sound.  But the small rooms we usually listen to our systems in literally choke the bass below 100 Hz. Getting these frequencies right requires clever acoustic management, a lot of power both amplifier and driver and digital room control. Very few if any speaker systems have the ability to produce bass accurately, they do not go low enough nor can they project that kind of power into a small room listening environment. I hear this all the time, "but, my speakers are rated to go down to 30 Hz." Right, at one meter in an anechoic environment. Put it in a room and you are lucky to get anything with verve below 80 Hz., virtually nothing below 40 Hz. If you try to correct these systems digitally they start distorting because they can't handle the power and many amplifiers just do not have the power to do it. To get it right you have to have a lot of subwoofer power and a lot of amplifier power. A point source system requires at least two 15" or four 12" drivers to do it with reasonable distortion levels. A line source system requires four subs 12" or larger. This will get you to 100 dB with low levels of distortion which is enough to replicate the visceral sensation you get at a concert in a room with good acoustic management. You can play a concert video and feel like you are at the concert and in many ways it is even better than a real concert. You get much better visualization of the musicians, the sound quality is actually better than at most large indoor concert venues and you do not have to deal with parking and crowds.   

cd318, what is going on is we are being screwed, all of us, every last one of us. Our money is being forcibly removed from our pockets and spent on maintaining political power and accumulating wealth usually to make corporations and certain voting blocks happy. We should all be fighting together to stop this. They are getting us to fight instead with each other. We need term limits and campaign finance reform fast before we become a police state. Humans need a reason to perform. Without that reason they devolve into apathy. The second amendment is not about guns. It is about keeping our government at bay. Watch what happens when they are not scared of us any more. 

If one talks about the ability to hear (hearing deficiencies) and the like...then that is something as important as any gear you might want to get. I think many people don't pay attention to that. Feeling is another subject entirely.

@stuartk, sorry about my delayed response. The visceral sensation is created by frequencies below 300 Hz. It is in this region that room acoustics cause the most trouble. Go to a rock concert at a large indoor venue and you get very powerful one note bass, boom, boom, boom. Go to an outdoor venue and you get beautiful bass. However, small indoor venues like Jazz clubs and larger indoor venue where acoustics were appropriately managed like Boston's Symphony Hall can give you wonderful sound. But the small rooms we usually listen to our systems in literally choke the bass below 100 Hz. Getting these frequencies right requires clever acoustic management, a lot of power both amplifier and driver and digital room control.

First point:  room acoustic can be controlled mechanically in a more powerful way than electronically...

Second point: i listen cello,tuba, and piano not heavy metal then over 40 hertz clear bass is enough and i have it in a 13 feet square room...I have a 52 watts amplifier, my sub is disconnected because i dont need it and any way only one sub in a small room is not ideal at all....

Third point no generalization are good.... There is different needs and different methods to reach a goal....

mahgister, how much experience do you have actually measuring room acoustics and correcting defects with both acoustic management and digital EQ? Do not tell me you can do it with your hearing because no one can even well trained mastering engineers can not EQ an environment by ear. They pull out the measurement microphone. I suggest you buy one. What you will see when you measure your system is a mess.
If there is an exception to my generalization I have not seen or heard it. 
When someone tells me they have "clear" bass that usually means they have almost no bass below 80 Hz. Because if you did without digital EQ the bass would be muddy and confused. 

mahgister, how much experience do you have actually measuring room acoustics and correcting defects with both acoustic management and digital EQ?

How much experience do you have actually "listening" to the same room acoustic with both passive materials treatment and active mechanical controls with a grid of 32 Helmholtz resonators finely tunable each one?

it is exactly like piano tuning by human ears but it takes some time because it was not my professional job...

When someone tells me they have "clear" bass that usually means they have almost no bass below 80 Hz. Because if you did without digital EQ the bass would be muddy and confused.

It is IMPOSSIBLE to have the tuba melodic line clearly with only 80 hertz bass...

I have it then my bass is clear to a point around at least 50 hertz and even under, but less so clear .... If i choose to disconnect my sub there is a reason....I am limited by the specs of my speakers even if they are spectacular with bass....

This cd contain one hour of tuba notes.... A very fine cd i recommend it....
https://www.youtube.com/watch?v=olIrf-uioD8

They pull out the measurement microphone. I suggest you buy one. What you will see when you measure your system is a mess.

I dont doubt what you say here.... Are you surprized?

But what you dont catch is that this "mess" is the result of my fine tuning for my EARS first...This measured mess is the speakers design response in my uncontrolled room...But after the finetuning of my grid relatively to my specific speakers response, it is no more an absolute mess, it is a "mess" correlated to my specific ears desire .... It is the way i hear timbre voices and instrument that is my rule for ALL THE ROOM .... Not a very selected range of frequencies for a very narrow location in millimeter out of which all your measures are a real mess... I will remind you that i listen from 2 positions in my room....Not just one....  



And it is not an absolute mess at all sorry.....I am sure that your "clean" acoustic will not be so good for me...But will sound artificial....

I think you dont understand that my speakers specs are not modified by the electronic equalization like in your case, my mechanical equalisation is carried out continuously by devices which are now part of my room and they modify the room without modifying the speakers responses even if i used in my own way with my H.R. grid the speakers responses ....And the fine tuning by ears use the relatively large band of voice timbre coming from the speakers and is very "finely" tunable at any time....

No electronical equalization can replace a room acoustic treatment ....NONE...An E.E. is not a room treatment at all...

But my mechanical equalization is a ROOM tretament ALSO, and not only an equalizer on his own right also, adapted exactly to my speakers timbre response (not frequencies response) without modifying their natural original design colored response....Like your equalization....