SoundTraxx Tsunami Steam Users Guide - Manual (Page 40)

Tsunami Steam Sound User’s Guide Page 37
being pushed about. If we turn up the volume, things will not likely improve
much and what’s worse, the speaker cone will eventually be pushed against
its physical travel limits resulting in annoying clicking and popping sounds.
This is where the equalizer’s ability to “cut” frequencies out becomes
important. By removing the inaudible low frequency sound components, the
speaker is now able to work more efficiently (i.e. louder) in the audio range it
was designed for.
EQ Presets
Using the equalizer begins with CV 153, the EQ Control Register. This CV
may be programmed with any value between 0 and 7. A setting of 0 disables
the EQ as if it were never there. Settings 1 thru 6 select a factory preset
which tailors the frequency response to several of SoundTraxx’s more
popular on-board speakers. The table below shows the presets and their
equivalent settings which may be used as the basis for developing your own
settings.
Custom EQ Settings
Finally, a setting of 7 allows you to customize the EQ response using CVs
154 thru 160, each which controls a different frequency band as follows:
CV 154, 62.5Hz
CV 155, 125Hz
CV 156, 250Hz
CV 157, 500Hz
CV 158, 1KHz
CV 159, 2Khz
CV 160, 4Khz
Sound Programming
62Hz
0 dB
128
-12 dB
0
-6 dB
60
-3 dB
96
+6 dB
192
-12 dB
0
+6 dB
192
CV 154
Flat
Micro Speaker < 1” Diameter
Small Speaker 1-2” Diameter
Medium Speaker 3-4” Diameter
Large Speaker >4” Diameter
Edgeport Speaker
Micro Speaker < 1” Diameter
User Customizable
0
1
2
3
4
5
6
7
0 dB
128
-12 dB
0
-3 dB
96
+4.1 dB
168
+3 dB
160
-12 dB
0
+3 dB
160
CV 155
0 dB
128
+7.12 dB
200
+4.1 dB
168
+2.3 dB
148
+1.5 dB
140
0 dB
128
+1.2 dB
136
CV 156
0 dB
128
+3 dB
160
+3 dB
160
+1.1 dB
136
0 dB
128
-3 dB
96
0 dB
128
CV 157
0 dB
128
+1.5 dB
140
0 dB
128
0 dB
128
0 dB
128
-3 dB
96
+1.2 dB
136
CV 158
0 dB
128
+0.8 dB
132
0 dB
128
0 dB
128
0 dB
128
-5.2 dB
68
+3 dB
160
CV 159
0 dB
128
0 dB
128
+0.8 dB
132
+6 dB
128
0 dB
128
-3.8 dB
84
+6 dB
192
CV 160
125Hz 250Hz 500Hz 1Hz 2Hz 4Hz Preset No. Description
Table H. Equalizer Presets
(Numbers in Red indicate equivalent CV Value)