The Delta 1010 is a rack-mountable soundcard. Now one of us is not clear on the concept (and, of course, it could be *both* of us.) I'll admit I'm a lot more familiar with LE than M-powered, but- The simple truth is that if you have 10 mics, you need 10 mic preamps. Devices which act as interfaces contain one or more preamps, which may or may not be good ones (usually mediocre). Pro Tools LE is firmware, not software. In other words, to use Pro Tools LE, first, you need Digidesign or M-Audio licensed piece of equipment that allows PT to be used. That device will generally contain one or more preamps, and as a rule, will have inputs for additional devices which don't have to be licensed Pro Tools devices. There are 2 limits to how many channels you can simultaneously record. The first limit is the number of channels allowed by the version of PT you are running. The second is the number of inputs to the Pro Tools licensed device you are using.
With M-powered, you still need a compatible device that is supported by PT M-Powered, and the Delta 1010 is indeed one of them- but you still have no preamps, and no mic inputs. Now,
M-Audio NRV10 is a 10 X 10 M-Powered compatible mixer with 5 phantom powered XLR inputs It's also $700. If five of your 10 channels were line inputs, you'd be there. Otherwise you would still need 5 more channels of preamps. I think Octane would get you to 8 channels, which is why I said above that 8 channels is easier than 10.
Do you see what I'm getting at? If you want to record 10 microphones simultaneously, you need 10 microphone preamps somewhere, with 10 XLR inputs into which you will plug those 10 mics, hopefully with available phantom power on at least some of them. Then you have to get M-Powered PT to recognize the source. The part I'm not clear on is whether M-powered will recognize an input from a non-supported device if you have a supported device connected. Unless it goes through the supported device, I don't think so.
So a Delta 1010 *would* give you 10 inputs into M-Powered, but 2 of those inputs are digital (S/PDIF), and *none* of them accept a microphone without an additional preamp. They are balanced line inputs, not mic inputs. The part you can't get out of is that 10 mics require 10 mic preamps. Right now, you have 2.-Richie