Best Buy via eBay offers two Kenwood Road Series 6.5" 2-Way Car Speakers
in Black, model no. KFC-1665R, for $29.99
with free shipping
. That's the lowest total price we could find by $6. They feature paper woofer cones, 1" balanced dome tweeter, up to 300 watts of peak power, and frequency response of 35Hz to 22kHz.