Home theatre junkies are now one step closer to a fully THX-certified home thanks to Serious Materials’ QuietHome soundproof doors, which joins the company’s QuietRock THX-certified drywall. The Serious folks claim an 85% improvement in sound blockage over a standard solid-core door with the 2 1/4-inch thick THX-certified edition, which will set you back US$2,500 when it clears the certification board (and once the first shipment clears to George Lucas’s Presidio compount). If you’re in the target market for a THX-certified door, US$2,500 probably won’t sting too badly. Now, where is my THX-certified easy chair and acoustically neutral Pringles can? Read on for full details.