Newegg offers a pair of Polk Audio Atrium 4 Indoor/Outdoor Speakers in White for $79.99. Apply coupon code "VISACHECKOUT" and checkout with Visa Checkout to drop the price to $71.99. With free shipping, that's $25 under our June mention and the lowest total price we could find by $18. It features a 4.5" woofer, 75Hz to 25kHz frequency response, and 0.75" tweeter. Deal ends October 31.
Note that the above coupon can only be used once per account.