Martin Logan MartinLogan - Depth 215, Dual 15” 4.4kW Powered , with BalancedForce Technology, Sub Control App, and Wireless Buil

The Depth Series is the culmination of MartinLogan’s decades of experience in designing high-performance subwoofers. Depth subwoofers are meticulously engineered to deliver powerful bass as cleanly as possible, making them an ideal choice for both dedicated 2-channel systems, home theater setups, or anything in between. Depth Series subwoofers are designed to blend uncompromising low-frequency performance with timeless, luxury design. Starting with a massively overbuilt cabinet, expertly sculpted to achieve a sleek and elegant look, every aspect of the Depth Series has been carefully crafted into a perfect fusion of form and function. The force-canceling dual-woofer layout virtually eliminates performance-robbing cabinet resonances, allowing the custom 12" (Depth 212) or 15" (Depth 215) Carbon Aerocore woofers to deliver pure bass energy without coloration. The system is powered by high-output, ultra-precise amplification managed by a class-leading 64-bit Vojtko DSP engine, enabling massive dynamic output, low distortion, and exceptional musicality. It’s not only about what you can see and hear, though—it’s also about what you can’t. For example, the amplifier is fully integrated into the sleek rear panel of the cabinet. Not only does this maintain a clean aesthetic, but it also allowed our engineers to design a convection cooling system to ensure optimal performance. The aluminum trim pieces along the rear edges serve not only as visual accents, but also as functional heatsinks and air intakes for the cooling system. Depth subwoofers prove that high performance and high style do not have to be mutually exclusive.