Alesis DEQ230D manual Basics of Equalization, Band Gain Cut/Boost Ranges

Basics of Equalization 3

Band Gain Cut/Boost Ranges

Whether you are cutting or boosting a band, the first 10 dB of change happens in 0.5 dB increments. The last 2 dB of change, going from +/-10 dB to +/-12 dB, happens in increments of 1.0 dB. So as you make the change, the Numeric LED Display will show you values like this: 0.5, 1.0, 1.5, 2.0, 2.5 ... 9.0, 9.5, 10, 11, 12.

It’s not possible to show a minus sign in the LED display for negative gain values. So when you're pushing the [DOWN] button, you'll see the same values: 0.5, 1.0, 1.5, 2.0, 2.5 ... 9.0, 9.5, 10, 11, 12. But if there's any doubt in your mind about which away you're going, the Band Gain LED will clue you in. As soon as you move 0.5 dB away from 0, the LED for that band will change from green to yellow. If you are cutting the frequency, the -2 dB LED will light. If you are boosting the frequency, the +2 dB LED will light. And on it goes until you reach the maximum value in either direction.

The resolution of the gain increments is higher than the number of gain LEDs in each band on the front panel can fully display. Therefore, you may make 0.5dB changes to gain and a band's Gain LED may not change. The following table shows the amount of change in dB it takes to light each of the Band Gain LEDs:

LED		Gain change
+ 12 dB		+ 12 dB
+ 10 dB		9.5 – 11 dB
+ 8 dB		7.5 - 9.0 dB
+ 6 dB		5.5 - 7.0 dB
+ 4 dB		3.5 - 5.0 dB
+ 2 dB		0.5 - 3.0 dB
	0 dB	0 dB
-	2 dB	0.5 - 3.0 dB
-	4 dB	3.5 - 5.0 dB
-	6 dB	5.5 - 7.0 dB
-	8 dB	7.5 - 9.0 dB
- 10 dB		9.5 - 11 dB
- 12 dB		- 12 dB

Remember, if you want to keep the edited program, be sure to store it to one of the User locations. For instructions on how to do this, turn to page 38.

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