Low Cut Led, Bypass LED | Peavey Q 231F Dual guide

This equalizer is designed to provide room equalization, feedback control, and system tone control. No amount of equalization will correct an acoustically bad room/mic/speaker arrangement or completely correct the response curve of a poor loudspeaker.

Always begin with all sliders in the “0” position and avoid excessively cutting large segments of the audio passband, as this will limit the system's dynamic range.

Exercise caution when attempting to boost equalization below cutoff of the speaker system. Typical sound reinforcement enclosures are not designed for 20 Hz performance and transducer damage could result.

LOW CUT (1)

Provides high pass filtering at 40 Hz in the “in” position. Low frequency roll-off is at 12 dB per octave. There is one on each channel.

LOW CUT LED (2)

With the low cut switch in the “in” position, this LED will illuminate indicating a low frequency roll-off at 12 dB per octave at 40 Hz. There is one on each channel.

BYPASS (3)

In bypass mode (switch in), the input signal is routed directly to the output and is unaffected by all front panel controls with the exception of the low cut filter. There is one on each channel.

BYPASS LED (4)

This LED will illuminate when the bypass switch is in the “in” position indicating that the EQ and gain controls are bypassed. There is one on each channel.

EQUALIZER SECTION (5)

31-bands of 1/3 octave filters. The filters are constant “Q” devices located at ISO center frequencies. Effec- tive equalization range is from 20 Hz to 20 kHz. Maximum boost per frequency is 12 dB and the maximum cut per frequency is 18 dB.

AUTOMATIC FEEDBACK LOCATING LEDS (6)

When feedback occurs, the LED of the frequency band that is feeding back will illuminate over the slider that needs adjusting. The LED will remain illuminated for a few seconds even after the feedback is gone. This allows you to see where the feedback is if the feedback goes away before any correction is made. If there is no feedback occurring, all the LEDs will become active acting as a basic real-time analyzer.

OPERATING THE FEEDBACK LOCATING SYSTEM

The feedback locating system is normally used in one of two ways.

1.To catch and reduce/eliminate feedback “on-the-fly” during a performance.

2.To determine frequency bands that are susceptible to feedback before the performance, and elimi- nate them in advance. This is done, after the system is set up, by bringing up the microphone levels slowly to the point of feedback. As they start to feedback, note the LED activity on the Q231 FX. Move the faders to decrease the “identified” bands. Now you have eliminated a high percentage of potential feedback problems before the performance even begins.

Note: It is not uncommon for feedback to occur over several frequency bands. Also, go easy when making fader adjustments since extreme movements will affect your performance and be counter productive. Some feedback or ringing, although audible, may not be louder than the other program material and may not light an LED.

GAIN (7)

Calibrated control for regulating overall gain of the equalizer section. Unity gain throughout the signal chain may be maintained by recovering lost signal at this point.

For example: Assume the equalization process has introduced a signal loss of -6 dB by negative ( - ) adjustment of the EQ section. The gain should then be adjusted to +6 dB to maintain unity gain through the equalizer.

Q 231F Dual specifications

The Peavey Q 231F Dual is a sophisticated dual 31-band graphic equalizer designed to provide unmatched audio performance and versatility, catering to live sound engineers, musicians, and audio enthusiasts alike. This high-quality equalizer delivers precise control over audio frequencies, allowing users to shape their sound environments with unparalleled accuracy.

One of the standout features of the Q 231F Dual is its dual-channel design, which enables simultaneous control of two audio paths. Each channel offers a full 31 bands of equalization, covering a frequency range from 20 Hz to 20 kHz. This extensive bandwidth allows users to target specific frequencies that may cause feedback or muddiness in a mix, ensuring that the overall sound remains clear and balanced.

The Q 231F is equipped with a unique Constant-Q filter design. This technology not only preserves the bandwidth of adjacent frequency bands when making adjustments but also ensures that boosts and cuts have a more natural sound. As a result, engineers can make precise corrections without introducing unwanted resonances or artifacts, leading to a more professional audio output.

Another significant characteristic of the Q 231F Dual is its built-in 12 dB/octave high-pass filter on both input channels. This feature helps eliminate low-frequency rumble, allowing for cleaner mixes and clearer vocal performances, which is particularly beneficial in live sound settings. Additionally, the equalizer includes a switchable bypass setting, allowing users to easily compare their processed sound against the original audio signal.

The Q 231F also boasts a reliable LCD display, providing visual feedback for the adjustment of gain settings and equalization levels. The illuminated sliders offer excellent visibility, even in low-light conditions, a crucial feature for performers and sound engineers working in dynamic environments.

Furthermore, Peavey has designed the Q 231F with rugged construction and intuitive layout, ensuring it withstands the rigors of live performance while remaining user-friendly. The unit is housed in a sturdy 1U rack-mountable chassis, making it easy to integrate into any existing audio setup.

In conclusion, the Peavey Q 231F Dual excels in providing extensive equalization control, advanced filtering technologies, and user-friendly features, establishing itself as a top choice for audio professionals aiming to achieve exceptional sound quality in any live or studio application. Its robust design and high-performance capabilities make it an essential tool for those seeking to elevate their audio experience.