Polk LSI Speakers (open box): (pair) M703 Bookshelf (cherry) $500 or m704 center (black) $270 + free shipping By admin | August 3, 2017 3:29 pm EST 0 Comment These are open box but never been used and come with full 5 year warranty m704 center speaker (black) $270 m703 Bookshelf Speakers (pair – cherry) $500