Waves API 550 - Manual (Page 6)

Chapter 2 – Quickstart Guide
Approach the Waves API 550 as you would any conventional EQ. Since the API 550 features
“Proportional Q,” which intuitively widens the filter bandwidth at lower settings and narrows it at higher
settings, feel free to push the API 550 harder than you normally would other equalizers. The API 550
will deliver smooth, natural, and musical sound even at the most extreme settings.
Waves API 550 User Manual
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