Slate Digital Eiosis Air and Earth EQ

Eiosis Air & Earth EQ
The Eiosis AirEQ is one of the most highly-regarded plugin equalizers in the audio industry, and the Eiosis Air & Earth EQ modules bring the heart of the musicality of that EQ into the Virtual Mix Rack. In addition to the actual Air and Earth filters themselves, both modules feature resonant filters (HiCut for the Air and LoCut for the Earth), with slopes from 6dB to 36dB/oct.

Smooth High Frequency Control
Air is a new type of filter that allows you to add or restore brightness to a signal without ever sounding unnatural. You can gently add high frequencies without adding harshness or unpleasant digital artifacts, allowing you to bring an instrument to the front of a mix or make a vocal track breathe, or to add subtle brilliance to an entire mix.

Transformer-Inspired Lows
The Earth circuit was inspired by real transformer behavior, and it allows you to control deep and solid sub-low frequencies. You can use it to add real girth to kick drums and bass, but it is also useful for any sub-bass tasks, like low frequency sound effects for post production.

Musical Hi & Lo Cut Filters
The design of both the Hi Cut filter (on the Virtual Mix Rack AirEQ module) and the Lo Cut filter (on the Virtual Mix Rack Earth module) allow frequencies to be rolled off naturally. The Q control allows you to control the resonance of these filters, meaning that the cutoff frequency can actually be boosted (to enhance a kick drum, in the case of the Lo Cut filter), while still rolling off frequencies below the cutoff. It may look simple on the surface, but there is real tonal-shaping power here.