Parametric vs. Passive

if it's an actual parametric EQ than it's hands down better than a graphic EQ. the reason most decks only have a 5 band graphic EQ is due to the flexibility in points and slope's on a 5 point to where it has more than a 13 band graphic EQ.

 
Found this at audiovideo101.com. Good site.

Parametric Equalizer
Type of equalizer that allows the user to adjust a signal's frequency response

with complete choice over how to break up the signal and adjust it using

amplitude, center frequency and bandwidth.

Equalizers adjust frequency response by changing the amplitude of a signal at

a certain point thus changing the loudness of the signal at that point. This

can be used to boost a signal that sags or loses output over a certain frequency

band or bring down a signal that is too powerful over a certain frequency band

with the end result being a flat (or flatter) frequency response (a flat

frequency response being a desirable trait meaning the audio system is not

attenuating or boosting the signal where it should not). When a signal is

equalized, its amplitude is changed at some center frequency and over some

range or band of frequencies on either side of the center.

In a graphic equalizer the center frequencies and associated bands are fixed

with only the amplitude adjustable. A parametric equalizer allows the user to

select the center frequency and bandwidth to be affected by an amplitude

adjustment. In this way, the parametric equalizer offers the maximum amount of

flexibility and customizability versus a graphic equalizer. Generally, a graphic

equalizer is adjustable at a large number of frequencies (as many as 30 center

frequencies) to allow fairly precise control over the frequency response while

a parametric equalizer only adjusts a few areas of the frequency, which are

carefully chosen.
 
Any EQ that doesn't have a 'booster' in it (think the Audiovox/Roadmaster/Sparkomatic units that everyone here knows someone that has/has had one at one time or another) or bandpass-capable output is a "passive" EQ.
again i think you're confusing passive crossover's with Eq's. Show me what you're talking about in a link or something so I'm actually knowing what it is.

 
Kenwood graphic EQ (however with a couple of parametric adjustments)

kgc-6042a.jpg


Performance Teknique parametric (junk, I know - only used for illustration purposes)

PTEQ5.jpg


Both are 'passive' units - they provide no additional power enhancement...simply tonal adjustments and neither have bandpass-capable output (active use)

 
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