PSP ClassicQ draws inspiration from renowned British-style equalizers, delivering the characteristic warmth and musicality associated with vintage high and low filters, similar to those found in early Neve EQs. It combines these classic tonal qualities with a precise mid-range filter, providing a rich and balanced sound. Additionally, PSP ClassicQ includes a selectable simulation of class A circuitry and an output transformer, adding a unique vintage coloration that enhances the overall audio texture.

Beyond its classic tonal foundation, PSP ClassicQ offers practical features that enhance its flexibility in audio production. Users can benefit from an adjustable high pass filter and switchable Q settings for both low- and high-shelf filters, allowing for detailed control over the frequency spectrum. Its sweepable midrange bell-type filter is particularly useful for shaping and correcting individual tracks, making it an effective tool for mixing and sound design tasks.

PSP ClassicQex is an extended edition of the original PSP ClassicQ, retaining all its core features while introducing a new Low Mid section. This addition expands the equalizer’s capabilities, offering greater precision and tonal shaping options. Whether working on individual instruments or complex mixes, PSP ClassicQex provides enhanced control and vintage-inspired sound characteristics that cater to professional audio production needs.