6"x 9" 2-Way Concentric Coaxial Speakers Upgrade your system with bold, full-range performance using the Diamond Audio DMDX69 6"x 9" 2-way concentric coaxial speakers, engineered for high-fidelity sound, powerful output, and everyday value. Part of the advanced DMDX Series, these speakers are designed to deliver clean, dynamic audio that far exceeds factory sound systems. At the heart of the DMDX69 is its concentric coaxial design, aligning the tweeter and woofer on the same axis for superior ph