Volko Audio presents QB, a digital recreation inspired by the iconic API 550b equalizer, delivering premium sound shaping capabilities with a modern, streamlined interface. Designed for ease of use, QB’s clean and intuitive layout allows users to focus on crafting their audio without distraction, making it suitable for extended mixing sessions.

QB offers precise control over multiple frequency bands, including low, low mid, high mid, and high frequency ranges, each with selectable center frequencies tailored to meet various tonal shaping needs. The plugin features adjustable boost and attenuation levels, enabling detailed enhancement or reduction of specific frequency areas, while its proprietary design ensures low noise, low latency, and high dynamic range performance.

Optimized for efficient CPU usage, QB maintains top-tier audio quality without placing excessive demands on system resources. It supports high sampling rates up to 384 kHz and includes a built-in upsampling algorithm for superior frequency response symmetry. With smooth, click-free parameter adjustments, QB is engineered to provide a seamless and professional equalization experience.