I've been using the same old computer desk speakers for few years now, and after making more of a jump into making multimedia sounds and music I was looking to buying some actual studio monitors. Possibly Mackie 824's. question is I notice many composers run extra sound equipment with their systems and I wanted to know Would I be able to just run 2-4 speakers on a Echo Mia Midi sound card, or do I need extra power from a reciever or amp? What other type of hidden costs am I looking at? One final question is if I have 1/4 inch jacks on the sound card what would be the best cable to use with the card?