Yeah with Maschine and the Audio 8 DJ you will need a powered hub for sure. I have the exact same setup and Maschine behaves funny or not at all when plugged into a hub with no power and obviously you are going to want the soundcard plugged straight into the Macbook USB port rather than a hub. I have a belkin 4 port hub. I struggled to find any ones that stood out as well built so just picked this up from PC World. Seems ok so far.
That has not been my experience. My crappy $4 un-powered 4-port hub from best buy would run Maschine, 2 X1s, and an LPD 8 just fine…off the low-power port (which also has the keyboard, trackpad, and iSight on it). I could replace any of them with my Audio 2 and it’d still work, but I used the high-power USB port on my MBP for it anyway.
I have no idea what all you people are doing with hubs, but I just don’t get it. I haven’t had anything give me any trouble except Cruzan flash drives.
I should also point out that I don’t use USB for hard drives ever and avoid USB for sound cards if I can (apart from my old Audio 2 and my SL1, because I don’t have a choice). I posted my tree in one of these threads.
Again…all of my controllers ran off one un-powered hub and the low-power port of my MBP. No problems at all.
Only thing I ever had an issue running on a hub were Xone: 1Ds
I had my DB4, Maschine, and 2X1s connected to a powered hub and I had the power cord unplugged for like a month before I realized it and didn’t notice any performance issues running in unpowered mode.
Let me answer your question by telling you a story. I have a 13" MBP and I’m using 2 X1s and an Audio 8. The port closer to my screen is for my Audio 8 and I have a hub for the X1s. I have a powered hub that I normally use but last night I brought my non-powered one. With the non-powered hub, my X1s weren’t nearly as responsive and the effects didn’t work at all. So use a powered hub.