The Elysia xfilter 500 is a stereo 500 Series equalizer module with Class-A signal path and a stunning, punchy sound. Stepped controls for every parameter let you dial in the exact tone-shaping you need, with switchable Q for the parametric mid bands. The outside low and high bands can be toggled to resonant filters that are almost synth-like in their sound. For a truly beautiful high-frequency sheen, switch in the passive LC filter and give your mix that final polish.