4" 2-Way Concentric - Coaxial Speakers Upgrade your compact audio system with the Diamond Audio DMDX4 4" 2-way concentric coaxial speakers, engineered for high-fidelity sound, space-saving design, and exceptional everyday value. As part of the innovative DMDX Series, these speakers are built to deliver clean, balanced audio and improved clarity over factory-installed speakers, even in tight installation spaces. At the core of the DMDX4 is its advanced concentric coaxial design, aligning the twee
