Studio monitors are made for near-field critical listening, they are supposed to have the most neutral sound as they can. This way you won't be inadvertently compensating for something that only exists in your setup and which could throw off the sound on anyone else's rig. Typical home audio bookshelf speakers are sometimes neutral, but are often voiced for an effect, and having anything other than neutrality is undesirable for monitors. The Hsus for instance, are not the most neutral speakers you can get for the money, but they aren't too bad. They wouldn't be my first choice for a monitoring system (lol, I should admit I have produced and mixed things on my Hsu speakers and it didn't sound bad, but they weren't very serious things). I bet you could use some higher end bookshelf speakers that measure well for mixing, like the KEF R series or some Ascend Sierras, but I would just play it safe and use monitors. I'm not sure I would want to use a typical home audio receiver for mixing either, I wouldn't want to risk any kind of processing to screw up the sound, you would only be able to use direct mode for monitoring, and at that point there isn't much point in using the receiver in the first place when you could have just used a standalone amp.