Here are some clues to the quality of your system:
1) A quote from Audioline's website - "Audioline has been manufacturing and distributing above average audio worldwide for the last nine years." How many audio manufacturers describe their gear as only "above average." At least they may be honest about their quality.
2) Audioline's website does not contain a physical address for their company (at least not one that I could find). Where are they located? Outer Mongolia? Did you get any literature, e.g., warranty card, etc., bearing a company address? I've never seen a legitimate company's website not have an address or telephone number.
3) You can't find any professional reviews for them.
And the biggest clue:
3) YOU BOUGHT THEM OFF THE BACK OF A TRUCK!!!!
But, what's done is done. What's important now is, how do they sound to you?