Sonic Electronix offers two pairs of Boss 6.5" 350-watt 3-Way Phantom Ghost Series Automotive Speakers
, model no. PG653, for $29.99
for shipping. That's the lowest total price we could find by $12. This set features two 1" Mylar dome midrange speakers, two .5" Piezo dome tweeters, a total of 700 peak watts (about 160 watts each), black poly injection cone, removable decorative skull cover with light-up eyes, 4 ohms impedance, frequency response of 64 to 20,000Hz, and 90dB sensitivity.