Device Type: Audio Processor
Keywords: equalizer, digital audio processor, professional audio
Product description: Graphical EQ is an indispensable device for frequency response control in various audio applications. Yamaha Q2031B is a good choice that can provide extensive control and high quality audio. Q2031B can be used for precise frequency response modification in any application.
Graphical EQ is an essential device for frequency response control in various audio applications. If you need one or more EQ devices, the Yamaha Q2031B is a good choice, offering extensive control and high-quality audio. Q2031B can be used for precise frequency response modification in recording, live sound, A / V production, electro-acoustic instruments, radio, music appreciation or any other application. The Q2031B has 2 independent graphic EQ channels and a 31-band controller in the 20Hz to 20kHz range.
The Q2031B provides 31 equalization bands at 1/3 octave intervals ranging from 20 Hz to 20 kHz. It uses a specially designed active filter that provides small phase offset and smooth response in any boost or subtraction setting.
Selectable ± 6 dB or ± 12 dB EQ range provides great controllability. The wide range control of ± 12 dB is useful for a wide range of sound quality changes or feedback control. At the same time, the ± 6 dB range also provides fine control over a narrow range, which can be used for fine tuning of acoustic tuning and curves.
Q2031B uses a compact 2U design, which provides complete 2-channel control from input to output, and each channel provides independent 31-band equalization and variable high-pass filters.
The main function of graphic equalization is to modify the frequency response and remove unwanted noise and distortion. The Q2031B has a total harmonic distortion of less than 0.05% and is very quiet. The noise level is kept below -96 dB, and smooth and natural sound expression is compatible with digital sound sources.
The high-pass filter is very useful in eliminating ultra-low-frequency box resonance, AC hum and wind ... In short, it prevents the sub-audio from polluting the sound and saves the power of the amplifier. The Q2031B is equipped with a continuously variable high-pass filter on both channels, providing 12dB / octave roll-off operation for any audio below 20 Hz to 200 Hz.
Both input and output channels provide balanced +4 dB 1/4 "phone jacks and balanced XLR jacks. This device can be directly connected to a large number of professional audio equipment.
Independent indicators for each channel light up when the output signal reaches 3 dB below the clipping level. After the power is turned on, the automatic mute circuit will mute the output signal of the equalizer for about 3 seconds to prevent the instantaneous current from damaging the amplifier and speakers.
The EQ ON / OFF switch also provides a one-touch EQ bypass switch to enable comparison between the equalized signal and the unequalized signal. The LED indicates that EQ is on.
Q2031B's rugged structure can adapt to the test of road shows and other uses, and can also be installed on any standard 19-inch rack.
A standard use of graphic equalization is to fine-tune the sound system to match the acoustic environment of a studio, concert hall, or other acoustic environment. It can be used to compensate for irregularities in the indoor acoustic environment of non-listening rooms to provide optimized response in a studio or concert hall.
In the case that certain room types and locations restrict the acoustic feedback protection, the graphic EQ can be used to reduce the gain at the problem frequency and reduce the possibility of feedback to a low level.
Graphic EQ also serves as a tool for shaping the sound curve, enabling better mixing of instruments and vocals in the mix. EQ can also be used in combination with reverb to mimic a variety of acoustic environments.
Graphic EQ can effectively suppress the snoring of tape, the rumble of stage, wind noise, snoring of microphone, excessive tooth sound and other unwanted noise sources.
|General technical specifications||Q2031B|
|Total harmonic distortion||Below 0.05% (20Hz-20kHz)|
|Frequency response||0 +0.5 -0.5dB 20Hz-20kHz|
|Power requirements||Depends on purchase area; AC100V 120V or 220-240V; 50 / 60Hz|
|physical dimension||width||480mm; 18-7 / 8in|
|high||93.4mm; 3-5 / 8in (2U)|
|net weight||4.0kg; 8.8lbs|
|annex||Instruction Manual AC Power Cord|
|Terminal||input resistance||Used rated impedance||Sensitivity||Large before distortion||interface|
| INPUT |
|15kohms||600ohm line||+ 4dB||+ 24dB|| XLR-3-31 type, |
|Terminal||Actual source impedance||Used rated impedance||Sensitivity||Large before distortion||interface|
| OUTPUT |
|75ohms||600ohm line||+ 4dB||+ 24dB|| XLR-3-type, |
* 0dB = 0.775Vrms
* The pictures and technical specifications are for reference only. The original manufacturer reserves the right to improve or change the appearance or technical specifications of the product without prior notice.