Professional stereo sound processor/loudness maximizer/limiter that features multiband technology, providing brilliant and lively audio processing without audible “pumping” artefacts. It also offers loudness maximization to achieve ultimate signal density for public address and competitive broadcast sound. Leveller automatically adjusts signal density for harmonized loudness and enhanced listening experience. This unit protects speaker systems that are submitted to continuous operation at maximum SPL and controls the maximum allowable sound pressure level in public musical environments such as discotheques, pubs, etc. It features the speech enhancer to dramatically increase speech intelligibility for PA applications such as airports and emergency announcement systems. It is also equipped with the IKA (Interactive Knee Adaptation) compressor that features “inaudible” compression and prevents ''pumping'' due to low-frequency signals. The IGC (Interactive Gain Control) peak limiting circuitry combines clipper and program limiter for reliable and inaudible protection against signal peaks. The processor provides two balanced/unbalanced inputs on combination line level XLR/TRS and 3-pin Euroblock connectors, and highly accurate 8-segment input/output level and gain reduction meter. It offers true stereo operation through RMS energy summing for perfect stereo imaging and switchable operating level from +4 dBu to -10 dBv. The unit complies with certain regulations – unit can be sealed to avoid unauthorized changes to settings. Hinged front door panel covers the control surface plus the power switch and the ultra-light, ultra-low noise and ultra-efficient switch-mode power supply ensures noise-free audio, superior transient response and low power consumption. Rack ear screw covers, IEC-type AC power cord and all mating Euroblock connectors are included.