14
TSS-SUB4000
ENGLISH
2. Reset the test level: Return to the section “Setting the Sub-
woofer Test Level” on page 7. Perform the procedure as
described.
3. Repeat the measurements: Now that you are familiar with the
measurement process, you can go much faster by using Tracks
27–50.These tracks contain all the test tones necessary for
measurement. However, each test is only about three seconds,
and there is no frequency announcement.The first test is
100Hz. Just place each test mark in order until finished.
Connect the dots.
Your second measurement will no longer exhibit the deep
response dips. However, the peak will still be evident. Without
the influence of the response dips, the amplitude and center
of the peak may have changed.
4. Interpret the new data: Compare your new data to the exam-
ples given in this section of the manual. Follow the instructions
for the example that most closely matches your new measure-
ment.
Example 6.
Ideal Response:
Figure 21. Ideal response, no EQ needed
If your test data looks similar to the example in Figure 22, you
have a very favorable setup. Skip to the “Final System Balance”
section, page 15.
Adjusting the R.A.B.O.S. Equalizer
Now that you have performed the measurements and interpreted
the data, you have the information needed to adjust the sub-
woofer’s equalizer.
There are three equalizer adjustments on the subwoofer. Left
to right, they are marked Frequency, Level and Width. Each
control has 21 positions.These are numbered from left to right.
Therefore, Position 1 is the full counterclockwise position.
The following table illustrates all switch positions.
Position
F (Hz)
L (dB)
W
1 CCW
20
–
14.1
4.5%
2
20
–
13.9
5%
3
20
–
13.5
7.5%
4
21
–
13.1
10%
5
22
–
12.7
12.5%
6
24
–
11.7
16.5%
7
26
–
11.0
20.5%
8
30
–
10.2
23%
9
35
–
9.5
26%
10
38
–
8.9
28%
11
40
–
8.3
29.5%
12
43
–
7.9
31%
13
46
–
6.4
34%
14
49
–
4.4
39%
15
52
–
2.9
41.5%
16
56
–
1.9
43.5%
17
63
–
1.1
45%
18
66
–
0.5
46.5%
19
72
0.0
48%
20
77
0.0
49%
21 CW
80
0.0
49.5%
22251_Inf_TSS_SUB_400O_eng 04/02/05 11:09 Side 17
