Linear Phase Royalty
Most all parametric equalizers or PEQs are implemented via phase shift. That is, the incoming dry signal is mixed with a phase–shifted version. Because the amount of the phase shift is frequency dependent, some cancellation or reinforcement occurs at the desired frequency. It gets the job done, but with a major disadvantage: the different signal components of the resulting audio become spread out in time, so time relationships between harmonics in the filtered output is heavily altered. The result: a nice sharp attack becomes slurred and muddy or worse, strident and brittle.
thEQred changes all that, providing profoundly punchy lows and airy, silky smooth highs like no other. It preserves the time relationships of harmonics, which translates into a smoother top end, sweeter and bigger midrange, and a clearer, more distinct bottom when compared to phase shift–style EQs. The resultant sound seems less processed, more like what should have naturally been captured by the microphone. You won’t get those punchy transients and silky highs with analog outboard or any ol’ IIR digital.
In addition to all the user–centric features that MAAT brings you, like Panorama and Contribution controls, thEQred features VariSlope™ technology, proprietary to thEQr. With VariSlope, shelving and cut filters offer continuous adjustment of any slope in the range from 0 to 24 dB/octave. Unlike other EQs that let you define or draw the curve, VariSlope offers unique versatility while preserving the sound quality MAAT EQs are known for.
The exclusive VariSlope filter technology lets you dial in continuous slope filters that emulate any critically damped shelf in the range from 1st to 4th order, including all imaginary filters in between. “Imaginary” because critically damped filters offer only slopes in discreet 6 dB/octave steps per “order”: 6, 12, 18, 24 et cetera. Our continuous slope low and high cut filter performs similarly, yet you can continuously change its slope from a critically damped 4th order equivalent, through 3rd, 2nd, and 1st order down to zero. The critically damped VariSlope high cut mirrors the continuous slope VariSlope low cut.
Such “in–between” frequency-response filter characteristics, especially with slopes less than 6 dB/octave, are absolutely impossible to implement with classical filter technology. The only workaround would be to cascade many 1st order filters with specially weighted amplitudes to get the overall amplitude envelope lower then 6 dB/octave. Such kludgy filters, however, deliver a wavy frequency response characteristic and are tainted with nasty phase shift and group delay. Quite the opposite, our VariSlope filter affords very smooth, controlled spectral changes without any phase shift.
thEQred works strictly in the frequency domain, while sounding a bit softer than her linear phase sister, thEQorange. Performing at up to 384 kHz, which extends resonant frequency settings up to 80 kHz, it’s perfect for high resolution DSD, DXD and game audio post–production. Its calculations are stored at 80 bits of precision, way more than 32 bit commodity EQs and more than what even fancy 64 bit EQs manage. The result: the construction of your composite filter is impeccable, with vanishingly low THD and without loss of very low amplitude detail.