Audio Control DQDX User Manual page 5

3 Equalization Controls - To custom tune your system, the DQDX gives
you dedicated equalization controls for the Front, Rear, and Subwoofer outputs.
See the section on Equalization Optimization on page 10 for a more detailed
description on how to set these adjustments for optimum performance.
4 24dB/Octave Linkwitz Riley Crossover - What is the benefit of fine
tuning your system if you cannot accurately route the proper frequencies to
the proper amplifier channels? The programmable audiophile crossover in the
DQDX is the same crossover as in many other award winning AudioControl
components. Know who else gives you a 24dB Linkwitz-Riley in their EQ?
Nobody! This is also a far cry from the wimpy crossovers that find their way
into some amplifiers these days.
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