Graphic Audio Equalizer

Koss EQ50 3-Band Stereo Equalizer

2011-06-08T19:49:00.001-05:00

What the bestselling equalizer on Amazon?

It’s a pocket-size 3-band equalizer from Koss, Koss EQ50 3-Band Stereo Equalizer . This mini 3-band equalizer delivers high-fidelity performance and output normally reserved for more expensive home systems. With a 10dB boost or -10dB cut range of level, it features a 3-band equalizer that allows for convenient and individual bass, midrange, and treble adjustment.

You can use 2 AAA batteries for 20-30 hours of usage and ideal for use with laptops or portable DVD & MP3 players. Power output is greater than 20mW per channel, providing clean and undistorted output into your favorite stereophones. It also cheap price only with $18 you'll get it.

Details Koss EQ50 3-Band Stereo Equalizer [specifications products, price, images and customer reviews]

MXR 10 Band Graphic Equalizer

2010-07-03T18:46:00.001-05:00

The M-108 provides extreme control over the ten most crucial frequencies for guitar. But that’s not all. With separate input gain and output volume sliders, the M-108 also provides a ridiculous amount of level control.

MXR 10 Band Graphic Equalizer Features :

Extreme control
Create scooped mid death tones
Midrange heavy lead sounds
Thunderous lows
Crystalline highs

Details MXR 10 Band Graphic Equalizer [products, price, images and customer reviews]

DBX 231 Dual 31 Band Graphic Equalizer

2010-06-29T18:07:00.001-05:00

DBX 231 Dual Channel 31-Band Graphic Equalizer. With the dbx lineage of revered pro EQs, the new 2-Series meet the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls. They set a new standard in the performance of entry-level graphic equalizers. Features include ISO frequency centers, +/- 12 dB input gain range, switchable 50Hz/12 dB per octave low-cut filter, 20 mm faders, and selectable +/-6dB or +/-12dB boost/cut range for precise gain adjustments. Inputs and output are provided on XLR and 1/4’’ TRS connectors for easy installation in any system. Sure to find a home in the studio, on tour and with installed sound venues, the 2-Series is destined to take its rightful place in the lineage of great dbx(r) signal processors that are the professional’s choice in signal processing. With such affordable quality there’s no longer any excuse for compromising your sound.

DBX 231 Dual 31 Band Graphic Equalizer Features :

Two 31-band, 1/3-octave Constant Q frequency bands
Switchable boost/cut ranges of ±6 or ±12 dB
12dB per octave 40Hz low-cut filter
Front panel bypass switch
±12 dB input gain range

Details DBX 231 Dual 31 Band Graphic Equalizer [products, price, images and customer reviews]

Tag : dual 31 band graphic equalizer, single channel 31 band graphic equalizer, band graphic equalizer stores, band graphic equalizer shop

Behringer EQ700 Ultimate 7-Band Graphic Equalizer

2010-06-27T18:15:00.001-05:00

Behringer EQ700 Ultimate 7-Band Graphic Equalizer Features :

Shape your sound and eliminate feedback with 7 bands of equalization
Wide frequency range from 100 Hz to 6.4 kHz with a powerful 15dB boost/cut per band
Status LED for effect on/off and battery check
First-class electronic On/Off switch for noise-free operation
Guitar/Keyboard

Details Behringer EQ700 Ultimate 7-Band Graphic Equalizer [products, price, images and customer reviews]. To look of Behringer EQ700 Price, please look at Amazon.com.

Tag : behringer equalizer, behringer graphic equalizer, behringer graphic equalizer eq700, behringer eq700 graphic equalizer pedal

AudioSource EQ200 10-Band Stereo Graphic Equalizer

2010-06-12T00:58:00.001-05:00

The AudioSource EQ 200 is a two-channel graphic equalizer, designed for use within a home entertainment system. Each channel features ten bands of boost/cut EQ and all twenty sliders contain illuminated LEDs, which makes it easy to check settings even from across the room. Enjoy precise audio control over your home stereo system with the AudioSource EQ200 10-band graphic equalizer. The device boasts 20 bands of frequency adjustments (10 for each channel) to improve the performance of everything from classic LPs to modern CDs and MP3s. Each EQ slider is positioned one octave apart from the others--from 39 Hz to 16 kHz--to correspond with the entire range of human hearing.

AudioSource EQ200 10-Band Stereo Graphic Equalizer Features :

10-band stereo graphic equalizer with 10 slider controls for each channel
Sliders range from 39 Hz to 16 kHz; overall frequency response of 10 Hz to 50 kHz
Illuminated LED sliders with multicolor spectrum analyzer that monitors audio output
EQ bypass function contrasts between "equalized" and "unequalized" sounds
Includes 2 A/V inputs and 2 tape inputs and outputs; 16.56 by 3.5 by 11.88 inches (W x H x D)

Details AudioSource EQ200 10-Band Stereo Graphic Equalizer [products, price, images and customer reviews]

About Graphic Audio Equalizer

2010-06-11T02:24:00.001-05:00

Equalization, equalisation or EQ is the process of using passive or active electronic elements or digital algorithms for the purpose of altering (originally flattening) the frequency response characteristics of a system.

The term generally implies amplitude correction or modification relative to frequency, but any frequency-dependent response characteristic can be equalized. Phase and time-delay methods can be used in equalization. There is also spatial directivity equalization.

There are many kinds of EQ. Each has a different pattern of attenuation or boost. A peaking equalizer raises or lowers a range of frequencies around a central point in a bell shape. A peaking equalizer with controls to adjust the level (Gain), bandwidth (Q) and center frequency (Hz) is called a parametric equalizer. If there is no control for the bandwidth (it is fixed by the designer) then it is called a quasi-parametric or semi-parametric equalizer.

A pass filter attenuates either high or low frequencies while allowing other frequencies to pass unfiltered. A high-pass filter modifies a signal only by taking out low frequencies; a low-pass filter only modifies the audio signal by taking out high frequencies. A pass filter is described by its cut-off point and slope. The cut-off point is the frequency where high or low-frequencies will be removed. The slope, given in decibels per octave, describes a ratio of how the filter attenuates frequencies past the cut-off point (e.g. 12 dB per octave). A band-pass filter is a combination (in series) of one high-pass filter and one low-pass filter which together allow only a band of frequencies to pass, attenuating both high and low frequencies past certain cut-off points.

Shelving-type equalizers increase or attenuate the level of a wide range of frequencies by a fixed amount. A low shelf will affect low frequencies up to a certain point and then above that point will have little effect. A high shelf affects the level of high frequencies, while below a certain point, the low frequencies are unaffected.

Via Wikipedia.org