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FAQ

What is a Parametric EQ?

A parametric EQ permits the operator to not only set the cut/boost of a given band, but also the center frequency and the BANDWIDTH of that band. Typically, a band may be as narrow as, say, 1/6-octave, to as wide as 3.0-octave. The center frequency of the band is tuneable over a wide range, as well. So, instead of a single control per band, there are 3. A "semi-parametric" EQ has cut/boost, a frequency "sweep" control, but no bandwidth control.

Parametric EQ's excel at "honing in" on a problem frequency band and minimizing it. This can be a loud "hot spot" on a bass guitar, or a resonant node prone to feedback in a live situation. You can also set up a much wider band than the typical graphic EQ can do, allowing you to use it as a gentle "tone control".

parametric

jackson413 29 March 2006

looking for a good 'dual' parametric eq with at least 4 bands (6 would be nice) and HP+LP filters. Need somthing for tracking and post. $1500 budget

I'm considering: Ashly PQX-572 (not sure if it as the HP+LP Filters or not)
Ashly 2.24PS (physical controls would be nice...)

any other ideas?

Ashly PQ66 Parametric EQ

anonymous 13 June 2003

Anyone familiar w/ this goliath? Made in late-80s/early-90s. It's a 3U space 4-band stereo (dual mono or link-able stereo) parametric, but I can't find any specs about it on the web. I know Ashly was an early pioneer of parametric EQ. Is this sucker tube? Transformer? Gerbil on a wheel (it's big enough to house a whole family of wheel-running rodents)?

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