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.

33

Page 35
Image 35
Alesis DEQ230D manual Band Gain Cut/Boost Ranges, Led

DEQ230, DEQ230D specifications

The Alesis DEQ230 and DEQ230D are sophisticated digital equalizers designed for audio professionals seeking precision in sound control. Equipped with advanced features and innovative technologies, these units cater to a variety of applications, from live performances to studio recordings.

Both models include a powerful 31-band graphic equalizer, allowing users to sculpt their sound with incredible accuracy. The DEQ230 and DEQ230D offer extensive frequency coverage from 20 Hz to 20 kHz, ensuring that all audible frequencies are managed effectively. The 1/3-octave resolution facilitates fine adjustments, enabling sound engineers to target specific problem frequencies within the mix.

One of the notable characteristics of the DEQ230 series is its dual-channel operation. The DEQ230 provides individual equalization for two separate channels, making it an excellent choice for stereo setups or multi-channel applications. The DEQ230D takes this functionality even further by incorporating digital connectivity, allowing for seamless integration with digital audio systems and enhancing flexibility in various setups.

In terms of technology, the DEQ230 and DEQ230D utilize state-of-the-art digital signal processing (DSP) to deliver high-quality audio performance while minimizing latency. These models feature comprehensive output level control and provide precise metering through LED indicators, which allows sound engineers to monitor levels easily while adjusting the EQ settings.

Moreover, both equalizers come equipped with a variety of memory presets. This feature enables users to save and recall specific settings, streamlining the workflow during live events or studio sessions. The intuitive interface ensures ease of use, with clearly labeled controls that facilitate quick adjustments on the fly.

Alesis has also prioritized durability in the design of the DEQ230 and DEQ230D. The robust construction and rack-mountable chassis make them ideal for both touring and permanent installations. Additionally, the inclusion of balanced XLR and TRS inputs and outputs guarantees compatibility with professional audio gear while minimizing signal degradation.

Overall, the Alesis DEQ230 and DEQ230D represent valuable tools for any audio professional, offering precision, versatility, and robust performance in a compact design. Their combination of advanced features and user-friendly interface makes them an excellent investment for enhancing sound quality in any audio environment.