High-fidelity Sound System – This DIY speakers kit with many components that are much more expensive high-end systems. Perfect as rear/side surround home theater speakers for a 5.1, 7.1 or 11.1 setup.DIY Bluetooth speaker kit for home theater 3 Way Bookshelf Speakers - Adopts three-way fourth-order speaker system reverse-phase design, with a luxurious and elegant appearance, high-end components included easy to set up and more stable excellent performance.wooden enclosure DIY speaker building kit Low Frequency - 6.5-inch large-diameter mid-bass unit L6-4R. Its diaphragm is made of all-black Kevlar fibre, an ultra-light and high-strength integrated composite material, a fatigue-resistant long-stroke rubber diaphragm folding ring, a highly compliant centering support piece, a unique magnetic circuit system with phase plug design, and a large magnetic steel drive unit. The mid-range unit uses a professional DN Series soft dome mid-range unit, with a high-quality diaphragm coated on the outside with a special damping material, and an independent dome mid-range unit to avoid the mid-range defect caused by the connection of the two frequency bands. The sound is sweet, natural and smooth. The high-frequency units use isodynamic ribbon tweeters with ultra-high resolution and a delicate, bright sound. Any color you can diy, just finish in a color to match your decor. DIY3.1A speaker: high-fidelity system – This kit uses many of the same components that are in our much more expensive high-end systems.beginner friendly DIY speaker kit with amplifier