alright, i need some good suggestions for a mixer. i'd like to get a rackmountable one so i can use it for home recording as well as take it on the road with as a PA. what are some that are powered and of relatively good quality and some that arent powered and good quality. i'm looking for maybe 8 channels. think in terms of how the sm58 is the industry standard for a good price and a great quality, and thats what i want in a mixer. also, i could use some suggestions for power amps and studio monitors as well. thanks!