Walmart offers the Boss Audio Chaos Extreme 6.5" 125-watt 2-Way Car Speaker Pair, model no. CH6520, for $12.88. (Amazon has it for the same with free shipping for Prime members.) Opt for in-store pickup to avoid the $4.97 shipping charge. That's a slight drop from our February mention and the lowest price we could find today by $3. They feature 125 watts RMS power (250-watt peak), a frequency response of 100Hz to 18kHz, 4-ohm impedance, 1" tweeters, and 1" aluminum coils.