This unit is only 9 months old, but I have moved to Universal Audio gear so you can grab it at nearly $400 off the new price (with taxes). 16 preamps with combo jacks for line level signals. Ability to control the system from and iPad, Android device or through the computer software. 2 main output, 6 assignable flex outputs and headphone outs. Plus so much more. Check out the full info here: https://www.presonus.com/products/StudioLive-16R While your at it, pick up my Big Knob Passive to use as a desktop volume control... https://www.usedvictoria.com/classified-ad/Mackie-Big-Knob-Passive_34703885