Build yourself some great sounding speakers with some seriously sweet dynamic range but definitely spend a week breaking them in for the best sound. Fostex FE103E Zigmahornet Speaker Box plan [[File Under: DIY Hi-FI, FREE PLANS]]
Always wondered what's inside a Bose Acoustimass Speaker System, 2 woofers in 'tandem' in an internal closed box, helping each other. A sealed enclosure delivers a more refined bass. Here combined with 2 ports.