Rane DEQ 60L Manual page 12

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Perfect-Q™, the Next Step in

Graphic EQ Design

• What You See Is (Really) What You Get

• Independent Band Adjustment

• Constant Bandwidth For All Sliders

• Minimum Phase Response

• Eliminates Band Interaction Overload

Ray Miller

Rick Jeffs

Dennis Bohn

RaneNote 154

PERFECT-Q™, THE NEXT STEP IN GRAPHIC EQ DESIGN

Pursuit of the Unreachable Star

The quest for absolute truth in graphic equalizer slider

position has a long history and recently took a giant

step forward. Using advanced DSP algorithms, Rane

Corporation introduced an entirely new generation of

graphic equalizers that realize the dream of having the

output magnitude response correspond exactly to the

front panel settings.* Extensive development resulted in

this new technology trademarked "Perfect-Q," because

that is what it does: calculates the perfect Q required

to create the exact response dictated by the front panel

slider positions.

*Acknowledgement is given to the first products addressing this

issue: the IEQ Smartcurve by ART and the TC 1128 by T.C. Elec-

tronics both introduced in 1987, and to the latest work achiev-

ing similar results by Lake Technology in 2002 as part of their

proprietary loudspeaker processor designed for Clair Brothers,

named Clair iO, and available now to the general public as the

Lake Contour loudspeaker processor. This processor exhibits true

arbitrary magnitude response for all equalizer types. Rane's unique

technology is developed specifically for graphic equalizer use (i.e.,

one providing real mechanical front panel slide controls), to faith-

fully duplicate the front panel fixed-frequency slider positions.

RaneNote

Perfect-Q-1

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