Here is what Jordan, from the Crutchfield Labs, had to say on the Sony XS-GTR1720 speakers. "they are ridiculously good for $50 . You may notice the 2-star review on these & I would agree w/ the customer that these are not a good choice if the plan is to keep the stock power supply. With aftermarket HU power or preferably an amplifier, these speaker produce clean, balanced highs and smooth, detailed midrange. As long as there is enough power, nothing in this price range will touch these."