The BSS FCS960 is a professional, dual-channel graphic equalizer that operates in two distinct modes: traditional 1/3-octave constant-Q filter mode for detailed room tuning and system alignment, and a variable-Q mode that allows the bandwidth of each filter to be adjusted for more surgical problem-solving. This flexibility makes it a powerful tool for system optimization in live sound, installed audio, and broadcast applications. Each channel provides 31 bands of equalization across the audio spectrum (20Hz to 20kHz), with high-resolution LED displays showing both the programmed curve and the real-time output level. The unit is designed for transparent operation, adding minimal noise and distortion while providing precise control over system frequency response.

The FCS960 features comprehensive input and output controls, including input gain trims, output level controls, and a bypass switch for each channel. Its front panel includes a responsive interface with buttons and a data wheel for editing parameters, and it can store multiple presets for different venues or system configurations. Connectivity is professional with balanced XLR inputs and outputs, and the unit supports both stereo and dual-mono operation. Housed in a robust 1U rack-mountable metal chassis, the FCS960 is built for reliability in demanding environments. Its dual-mode capability allows engineers to use it for broad tonal shaping with constant-Q filters or to target specific resonant frequencies with narrow, variable-Q filters, making it an exceptionally versatile piece of system processing gear.

Ideal for front-of-house engineers, system technicians, and installers, the BSS FCS960 provides the detailed equalization control necessary to overcome acoustic challenges and achieve a flat, coherent system response. Its combination of dual operational modes, comprehensive control, and high-quality signal path makes it a standard for critical equalization tasks in professional audio systems.