HS-CMRR Balanced Inputs : The balanced signal inputs on the CA amplifiers have a High Sensitivity CMRR (Common Mode Rejection Ratio) design in order to reject even the slightest added distortion on the signal, thus assuring the best possible audio signal at the input. Internal X-Over : Further quality sound performance can be achieved enabling the CA series internal crossover functionality for 2-way bi-amplified sound reinforcement systems. CA series had been improved with a new attractive front panel design and implementing renowned high efficiency Class H technology for an even better sound quality on these mid-range power amplifier series.