This is one of the best 8 channel mic preamp values on the market plus you get a great 8 channel A/D converter.

ASP880 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!