Parametric EQ How does it differ from Graphic EQ? Main difference: VARIABLE rather than FIXED Frequency Involves a BAND-PASS FILTER Can control: AMPLITUDE, Center Frequency, and Bandwidth (Q) History Introduced in 1972 by GEORGE MASSENBURG Was very innovative because it can make PRECISE modifications to EQ Has become extremely popular in DSP (Digital Signal Processing) such as in Plug-ins Sometimes called PARAGRAPHIC EQ Semi-Parametric EQ Same as Parametric, but has limited features Usually has a pre-set BANDWIDTH, meaning that you cant adjust the Q This is common on MIXERS Popular Uses ENHANCEMENT: A Parametric EQ can enhance, boost, or add harmonic distortion to a chosen frequency RESONANCE: An engineer can either boost or reduce a particular point of resonance REDUCING NOISE: Eliminate any extraneous sounds LIVE SOUND: Preventing feedback or room correction QUESTIONS What are the ADVANTAGES and DISADVANTAGES of using either a parametric or graphic EQ? What is the benefit of a DSP-based EQ? What is the benefit of a Tube EQ? How much should an engineer rely on EQ? Presonus EQ3B 3-band Parametric EQ Great River EQ-1NV Up to 4 independent bands, selective EQ types SSL EQ Module Like on our mixer here High, High-mid, Low-Mid, and Low 4-band with Q on two center bands High and Low are High or Low PASS Can select or bypass Manley Massive Passive: Over $4,000