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]]
DIY Bluetooth Speaker by ASCAS
QuarterWave - Bluetooth Transmission Line Speakers by Cary Gallaway & Donald Thomas — Kickstarter. The QuarterWave is a handcrafted Bluetooth speaker system which implements a tapered acoustic transmission channel designed to produce a full-range superior quality sound. The QuarterWave is designed to transform any music listener into a true audiophile as we've removed the guesswork in finding the acoustic system to brilliantly reproduce your favorite music.