Hi everyone, Dennis Foley from Acoustic Fields. Today we're gonna talk about subwoofers and
we're gonna talk about pitch and tone. So let's do some definitions. Pitch is the degree of
highness or lowness of a tone and the tone is composed of pitch, quality, and strength, amplitude,
Q value for quality. So look at those two definitions for a minute because they use each other and
that's important. You understand that relationship. One depends on the other. Tone depends on pitch
and pitch depends on tone. That's everything in music, pitch and tone. I talked to a lot
of drummers last week for some reason, I think 10 drummers. And they all expressed the desire
to have more tone out of their drums. How do they get that? How do we achieve that? They've
heard it before, they want it. And we're helping them through that process. Low frequency energy,
20 to 100 hertz has pitch and tone. All energy does, musical.
High resolution room is the goal. That's why we go for this, do all this craziness to the
walls, floor and ceiling. Because we know we can get low frequency pitch and tone. This
is why I spent years developing our carbon technology, our diaphragmatic absorption technology using
carbon. Took years and years to figure that out, but that's what I was after. I was after
the pitch and the tone in the low end. That was my focus. Then I went to the foam for middle
and high frequencies. Then I ran out of money and wore out. So those are our two products.
That's kind of how it happened. But anyway, so what do we want? We want the CAW system
because that's a tactic that we use to get our goal. That's what we want to do. We want to
get our goal which is pitch and tone. We're going to use the C-A-W. And you can read about
it on our website. It's the last project on the project page. It always is the last project.
I don't remember the number, but it's the last project. Watch that video. That's a process
where we actually tune the room every 14 and a half inches. What is 14 and a half inches?
It's the distance between a wood frame stud. Studs are 16 units on center, which leaves
the 14 and a half about in the middle. 14 and a quarter, it varies. So watch that video and
you see how we install our carbon technology between the studs. So we're going after room
modes every 14 and a half inches. Pressure modes, 20 to 100 hertz every 14 and a half inches
in a room. You can't get any better. You can't go after it any greater because you're out
of space. You're using the floor, ceiling, and the four walls. There's no other space to use.
Boy, when you use it all, you really get pitch and tone. But watch that video. So this is
my beef with placing subs in the corners of the room. You excite the room modes. You excite
room gain. All modes end in the corners, right? So you put more pressure in the corners, you
excite all those modes. Why do we want more distortion? Isn't the goal less distortion?
You know, it's that old quantity over quality. Well, let's get more energy and forget about
pitch and tone. More is not better, okay? The gain. From the corner, smothers tone and pitch
in your sub.
the quantity over quality argument. Well, repeat it once more. More is not better. Keep all
your energy sources away from the wall. Don't smother them in room gain. Geez, that's not
our objective here. Our objective is resolution. We can't achieve resolution as a strategy if
you keep tripping over yourself using false tactics. Can't do it, all right? You're running
the standstill. Who wants to do that? Keep your ears away from the walls. Don't put your listening
position right next to the rear wall. Don't do that. Don't put your speakers close to the
wall. Four to five feet for every speaker. Minimum. More is probably better, depending on room
size and usage. Keep tone and pitch. It's what it's all about. That's what we're trying to
do here. We want to hear everything. Fortunately, to hear everything, we got to get a lot of
things out of the way. And one of the things in room acoustics that I see all the time is
ignorance. We gotta get that out of the way first. So I do with these videos. I really
hope it helps. We try to take the complicated and make it simple. I know I succeed sometimes,
sometimes I don't, but I keep trying. I keep taking the same subjects, using different tacks,
trying to get the communication. I'm starting to see some understanding in my phone calls
and emails and stuff like that. So. Sub, pitch and tone. Keep it in mind. Keep those subs
out of the corners. Thank you.
There's an interchange between people on the forum, and we'll give you real answers on a
regular basis so that'll help you. Thank you.