MartinLogan has announced the expansion of its powered subwoofer portfolio with the Grotto 12 and Grotto 15. This new series follows the Dynamo Foundation, Dynamo, and Abyss Series, which were announced in August 2024. The Grotto Series subwoofers utilize MartinLogan’s largest and most powerful hybrid woofer systems to date.
MartinLogan Grotto 12 and Grotto 15
“Subwoofers have been a key category for us at MartinLogan for over two decades. As the latest addition to our new subwoofer lineup, we’re thrilled to see the namesake of the Grotto return with such fanfare,” said Allan Tarrant, Senior Vice President of MartinLogan. “After the launch of our new Dynamo Foundation, Dynamo, and Abyss models, people kept asking us about bigger, more powerful subwoofers.”
“The original Grotto was the first MartinLogan product I ever owned, and I still use it today. I’m proud to have been a part of developing its successors,” said Andrew Lindsey, Product Manager at MartinLogan. “The new Grotto 12 and Grotto 15 more than carry on the legacy of the original, offering massive output capacity and incredible refinement—all in a subtle, stylish design that can take on even larger rooms.”
Grotto series: minimalist styling. maximum performance.
The original Grotto subwoofer utilized trickle-down technology from MartinLogan’s flagship subwoofers to deliver clean, powerful, and clear bass in a stylish design. The new Grotto series continues this tradition and takes it to new heights. Equipped with MartinLogan’s largest and most powerful hybrid woofer systems and a comprehensive list of features, the Grotto is primed for maximum performance, all wrapped in a sleek, minimalist aesthetic.
MartinLogan Grotto: Features and Characteristics
- Powerful, precise output: Utilizes a 12- or 15-inch hybrid woofer system that combines a powered aluminum cone woofer with two passive aluminum radiators. This design improves output and reduces distortion, similar to ported designs, while maintaining the compact size and tight bass response associated with sealed enclosures.
- Massive Power: The cutting-edge Magnitude MT-2kW delivers up to 2,000 watts peak (1,000 watts RMS) of pristine power for powerful impact and effortless musicality thanks to its nearly endless power reserves.
- Ultra-High-Resolution DSP Engine: Equipped with an industry-leading 500MHz DSP with 64-bit processing for audible transparency of all advanced DSP functions for maximum output and fidelity.
- Reinforced Cabinet Design: Features a sealed, 1-inch thick MDF cabinet with center braces and reinforced woofer baffles for clear and accurate bass performance.
- Integrated anti-vibration feet: A slim solution that improves system dynamics by reducing vibration transfer to adjacent rooms, suitable for all floor types.
- Effortless App Control: The MartinLogan Subwoofer Control app for iOS and Android makes tuning easy from the comfort of your seat.
- Integrated wireless receiver and transmitter for a clean installation, guaranteeing both lossless sound transmission and minimal latency.
- Robust connectivity: Grotto 12 and 15 offer incredible installation flexibility with both RCA and XLR LFE inputs, stereo RCA inputs, speaker-level inputs, and subwoofer outputs. Simultaneous connections are also supported.
- Supports award-winning Anthem Room Correction (ARC) for custom equalization, tuning, and calibration to maximize bass impact.
