Jan 01, 2020 ยท The volume control on the M-Audio Air Hub is excellent. Sadly the good news ends there. It seems they took an obsolete laptop USB DAC chip ("CODEC") and stuffed in there and called it done. No effort was made to build a quality audio product. Shame. The M-Audio company that I know from back in 1990s was a high-end audio company.. The ioStation 24c audio interface and production controller provides essential tools to record, mix, and produce in an ergonomic desktop design that fits into any home studio. Record through two pristine XMAX mic preamps and high-definition 24-bit, 192 kHz analog-to-digital converters. Navigate your recordings with easy-to-use transport controls. "/>M-audio air 192 14 ipad