So you're saying I need to take the entire system with speakers to the dump or do I have the option of possibly purchasing a more compatible/better receiver? I know that I won't get it for 200 dollars... I guess it's fortunate I spent 300 on it since it was on sale. Would it be possible to explain to me what exactly I was duped on so I don't make the same mistake again?
You seem to have an AVR that is driving those speakers at present. It is the receiver that is done for. The sub has active electronics, so that may become a problem. The other speakers are passive, so unless over driven they are unlikely to become a problem.
So you have to dump the receiver and continue as you are.
My advice is to sit tight until you can afford better speakers, sub and mid level AVR.
You avoid these sort of mistakes by being cognizant of the complexities involved and being able to estimate what the costs are to bring a reasonably and especially a reliable system to market.
One thing I would say is that packaged systems should pretty much always be avoided. They have very bad track records, as I pointed out going back eons.
When funds are limited reliability becomes a paramount issue. As early failure is costly and you never get ahead and make progress. So you have to develop a good nose for junk. As I have said many times here junk purchases are the most costly you ever make. Unfortunately junk in this arena abounds.
This is now becoming more of a moral issue then in years gone by. In years past it was judged that just the purchaser was the looser and no overall harm was done.
However we now know that producing and transporting the junk increases the carbon footprint and worse it contributes to ever growing gigantic mountain of toxic waste. It is a myth that a lot, and actually most, electronic components can be recycled.
I think in this information age reliability, longevity data could be tracked. I would be in favor of heavy fines levied against companies producing gear whose lifespan was less than reasonably predictable norms. What you have experienced does none of us any good, but you got the worst of it and for that I'm sorry.