The 16-channel 1640i is the flagship mixer of the series featuring a full 16 mono mic/line channels each with 4-band dual sweep Perkins EQ, a whopping six aux sends each with pre/post and solo capability, 4 sub groups and a powerful master section. Despite its large channel count, the 1640i is compact, rack mountable and features the renowned flexible RotoPod design, allowing the mixer to be housed in any configuration - from custom studio furniture, live sound installs or even post production machine rooms. The 1640i's full-featured 16 x 16 FireWire capability allows the user to route all channels, aux sends, sub groups and master L/R to their favorite DAW. However, the true power of the 1640i lies in its ability bring back the full 16 channels of FireWire output from your computer directly into the channel strips - for a true tape style mix down.