The Atlast HPA-DAC8 accessory card is designed to work in conjunction with HPA Series 8-channel amplifiers. The HPA-DAC8 is an 8-input Dante receiver that features digital audio transportation over standard IP networks.The HPA Series 8-channel amplifiers come standard with eight balanced line inputs and an accessory slot to fit the HPA-DAC8. Dante Input 1, and the analog balanced input levels are isolated from each other and are electronically summed together forming a mixed output. Both the Dante input and the analog balanced input levels to the amplifier channel are controlled by the Ch-1 level control. Channel 2 thru 8 inputs are configured the same as Channel 1.