Newegg cuts up to 67% off a selection of home theater receivers, speakers, and subwoofers. Plus, a majority of items receive free shipping. A couple best bets: Note: If you haven't yet redeemed either of these discounts, you can cut $25 off orders of $75 or more using MasterPass and Newegg's mobile site, or you can bag a $25 American Express statement credit with orders of $200 or more, via the directions found here.

If you need an item to arrive in time for Christmas, choose 3-Day Shipping at checkout and place your order by December 19 at noon local time for guaranteed delivery.