I've been practicing singing recently (hard rock/metal), with the intention of joining a band in the near future. I am working on recording some demos, but currently I am just monitoring and playing back through my PC speakers, which doesn't sound terribly good.
I am considering buying a better pa speaker of some kind, to try to improve the sound quality I am getting for practicing/monitoring. My question is: is it possible to over-size a speaker system for a given practice space? For example, if I get a pa speaker that can output several hundred watts (with the intention that I might also be able to use it for performances later on) could the sound quality suffer, if I use it on a very low volume setting for practicing in my basement? If so, are there any 'rules-of-thumb' for gauging where that low-end sound quality limit is?