The dbx AFS2 is a high-performance feedback suppressor that automatically detects feedback points and inserts up to 24 steep notch filters (minimum bandwidth 1/80th octave) per channel. By combining "fixed filters" that match the characteristics of the venue with "live filters" that respond to sudden feedback during live performances, it effectively eliminates feedback while maintaining sound quality. Key Features: * Adopts the latest AFS algorithm, significantly improving detection accuracy and speed. * Significantly reduces false detection of sounds similar to feedback (e.g., flutes and synthesizers). * Optimizes filter attenuation to avoid excessive impact on sound quality. * Automatically releases unnecessary filters, maintaining a clear sound. * Easy-to-read LCD display shows filter status in real-time. * Intuitive operation with a large wheel that can be rotated and pressed. * Easy setup with a wizard function, even for beginners. * Allows detailed settings of the number of filters and operating modes to suit the application. * Input/output terminals: XLR, standard phone jacks supported / +4dBu and -10dBV switchable. This is the perfect unit for preventing audio problems in various settings, such as live PA, conferences, speeches, and broadcasting. Included: * Power cable * Four rack mount screws * Power-on and basic cleaning have been performed. * Used without issue until removed from the rack at the end of last year.