The 212 (pictured here) features two solid preamps and high-performance converters, allowing you to record, mix and play back audio in studio quality, anywhere.
The 18i8 features four preamps, eight balanced line inputs, for connecting synths or other line-level audio, and four balanced outputs, for monitoring and effects sends, Four monitor outs, featuring anti-thump tech and speaker switching. I also like that the 18i8 gives you two headphone jacks for separate monitor controls.
Both units allow you to get up and running quickly with the Easy Start tool and it works seamlessly with Apple.