I've recently gotten into producing music, and I have all the things I need to record. But now I'm looking to buy a pair of studio monitors to learn to mix on, but I have no idea how many watts of power my monitors need to be. I also don't know what frequency response I should look for. I'm looking at the Presonus Eris E5s which has a total power of 70w and a frequency response of 53hz - 22khz. Is that enough? Or should I pay for the E8s, which is quite a bit more than I'd like to pay. The E8s have a total power of 130w and a frequency response of 35hz - 22khz. I will be mixing in my bedroom that I'm going to treat.