EQ1-MK2 with linear phase response
The EQ1-LP has the same parameter set and features as the EQ1-MK2. In addition it can be switched between minimum and linear phase behavior. Linear phase means that the delay introduced by processing is constant across the whole spectrum, unconstrained by the EQ settings. The sound, or character, of an equalizer has been said to be influenced by phase response as for example John Watkinson mentioned in Studio Sound magazine 9/97: “… much of the audible difference between EQs comes down to the phase response.” The EQ1-LP is therefore the ideal tool for corrective amplitude adjustment, without the unwanted phase distortion added by standard equalizers.
The EQ1 is a two channel digital equalizer with seven parametric bands. It has digital inputs/outputs exclusively. The EQ1 works at up to 24 Bit/96 kHz. The basic model is the EQ1-MK2, the linear phase model is the EQ1-LP, the dynamic model the EQ1-DYN. The EQ1-DYN-LP incorporates both LP and DYN versions in one unit.
“The new upgrades to the DS1 and EQ1-LP are remarkable. I think that the double-sampling EQ1-LP is the finest sounding equalizer that has ever been produced, whether analog or digital.”
Alan Silverman, Arf! Digital, USA