BBE 822A Sonic Maximizer Audio Processor Rack Mounted Unit

The BBE 822A Sonic Maximizer Audio Processor is a classic rack-mount enhancement unit designed to bring clarity, brightness, and low-end punch to your mix. With dual stereo channels and independent Lo Contour and Process controls, it refines both your bass response and high frequencies through time/phase alignment, not just EQ boosts.

Whether you're working in the studio or reinforcing sound live, the 822A gives instruments and vocals newfound presence and definition, plugging into your signal chain toward the end as a polish tool. Built with rack durability in mind, this unit remains a dependable favorite for engineers striving for cleaner mixes and fuller sound.

• Dual-channel audio processor (left & right channels) for stereo use or dual mono operation 
• “Sonic Maximizer” processing circuit: includes Lo Contour and Process controls per channel to adjust low-end punch and high-frequency detail/phase alignment 
• Bypass switch for each channel (to compare processed vs unprocessed signal) 
• Balanced and unbalanced inputs & outputs (6.35mm TRS / TS / XLR depending on variant)
• LED indicators/meters for signal levels to help avoid clipping 
• Rugged 1RU rackmount form factor (standard rack width)
• Internal calibration / trim adjustments (per manual) 
• Front and rear panel control access (front: Lo Contour, Process, bypass; rear: I/O connections, power)
• Power: standard AC mains supply (line voltage)