Audient ASP880 8-Channel Class A Microphone Preamp with A/D ConverterASP880 is an 8 channel microphone preamplifier & ADC that will transform your sessions into world class recordings, the perfect addition to your set up. ASP880 provides eight of Audient's renowned console mic pres, pristine converter technology and a versatile feature set that includes Variable Impedance and Variable High Pass Filters. All in a 1RU rack! Features: 8 Audient Console Mic Pres All new, Burr Brown AD converter technology Variable Input