1U rack mount Mackie 800R with famously quiet Onyx preamps. Also has 24-bit 192Khz SPDIF digital out (ADAT). Inputs: 8XLRF Inputs 7-8 can be set to Hi-Z for Guitars DB-25F for all 8 channels Outputs: DB-25F for all 8 channels. I have one 800R left for sale at $300. These were $1279 USD MSRP when new! Here's a link to the manual: https://www.fullcompass.com/common/files/5545-Onyx800RManual.pdf