Sound variation by tuning
BLACK
0.700
1
1
BLACK
0.550
2
BLACK
0.450
3
WHIT E
0.168
4
WHIT E
0.130
5
WHIT E
0.092
6
4
5
6
WHIT E
0.168
7
WHIT E
0.130
8
WHIT E
0.092
9
Sound Tuning sheets |
Feuilles de réglage du son
FI-DO8BSB
fo
r
h
o
u
s
in
g
s
fo
r
d
ri
v
e
rs
low
high
low
high
acoustic pressure
acoustic pressure
frequency
frequency
low
high
acoustic pressure
frequency
7
8
nothing
9
10
11
12
low
high
acoustic pressure
frequency
×
×
×
The mentioned above is the change caused by physical characteristics. You will get the impressions that when lows go up, high go down. Otherwise, when high go down, low go up.
The mentioned above is the change based on the sound tuning sheets offered, but even when using the other materials for tuning, the characteristics change that occurs related to density
of the filter. High density makes more change is what is in common.
This genuine sound tuning sheet is one of the tuning materials made only for workability. Its effect will be different when using silk, cotton, and natural
materials for tuning from industrial products even using same density. In general, it will be more preferable changes. Using natural materials for tuning,
please note the growth of mold, corrosion, allergy, and etc. Please be careful and act on your own responsibility.
front body sound
conduit
+
filter
front body sound
conduit
+
sponge
+
filter
backside of the opening
of the rear body
+
filter
2
3
nothing
nothing
nothing
11
When the tones from the driver unit pass
through the filter, it mainly reduces high
tones. The more thicker it is, it reduces
high frequency tones.
When the tones from the driver unit pass
through the sponge filter, it mainly reduces high
tones. The more thicker it is, it reduces more
high frequency tones. Inserting sponge
horizontally which makes its density up reduces
more high tones. The effect on frequency band
will be a bit different from the filter described in
left.
Attaching the filter on backside of the opening of
the rear body controls the movement of
vibrating plate (diaphragm) which reduces
middle range to lower range. It changes
muffled sound to clear sound. This tuning point
makes the most significance influence on
changing the sound signature.
Attaching the filter on backside of the
opening of the rear body controls mainly the
characteristics of frequency under 200Hz.
When the filter gets thicker to thinner, bass
will increase. There are several openings on
it, making a hole on each opening makes
more precise tuning possible.
12
opening of the
driver unit
Difference of the sound signature when
attaching the filter into the front body
sound conduit
Difference of the sound signature when
inserting the sponge into the front body
sound conduit
Difference of the sound signature when
attaching the filter across the driver unit
Difference of the sound signature when
attaching the filter onto the backside of
the opening of the rear body
11
12
10
