Martin Logan Grotto Servo Controlled High Resolution Subwoofer Amazing detailed base, especially for the size. Anyone who knows about servo sub technology and what it does for detailed base reproduction, understands what Im talking about. This unit is working and it sounds wonderful (like new) while playing music at normal volumes, HOWEVER it can present a rattle when pushed to high volumes, especially during high volume action scenes while watching movies.

This MartinLogan Grotto subwoofer system is a top-of-the-line device that will bring your listening experience to a whole new level. With its high-resolution audio and powerful bass, youll feel like youre right in the middle of your favorite songs and movies. The sleek black design and wooden material will seamlessly blend into any home audio setup.This subwoofer is the perfect addition to any stereo system with its stereo L/R RCA audio inputs and wired connectivity. It features advanced servo-control technology for precise and accurate sound reproduction. The MartinLogan Grotto subwoofer system is a high-end device that will enhance your audio experience.

This MartinLogan Grotto subwoofer system is a top-of-the-line device that will bring your listening experience to a whole new level. With its high-resolution audio and powerful bass, youll feel like youre right in the middle of your favorite songs and movies. The sleek black design and wooden material will seamlessly blend into any home audio setup.This subwoofer is the perfect addition to any stereo system with its stereo L/R RCA audio inputs and wired connectivity. It features advanced servo-control technology for precise and accurate sound reproduction. The MartinLogan Grotto subwoofer system is a high-end device that will enhance your audio experience.

This MartinLogan Grotto subwoofer system is a top-of-the-line device that will bring your listening experience to a whole new level. With its high-resolution audio and powerful bass, youll feel like youre right in the middle of your favorite songs and movies. The sleek black design and wooden material will seamlessly blend into any home audio setup.This subwoofer is the perfect addition to any stereo system with its stereo L/R RCA audio inputs and wired connectivity. It features advanced servo-control technology for precise and accurate sound reproduction. The MartinLogan Grotto subwoofer system is a high-end device that will enhance your audio experience.

Enjoy the deep and powerful bass of the MartinLogan Grotto subwoofer. This triangle-shaped subwoofer is a great addition to your home audio system and it comes with stereo L/R RCA and speaker audio inputs. With a powerful RMS power of 250W, this wired subwoofer delivers high-resolution sound that will immerse you in your favorite movies and music. The Grotto subwoofer is stylishly designed in a sleek black color and is compatible with a variety of home audio systems. Its servo control ensures accurate and distortion-free bass, enhancing the overall audio experience. Get ready to feel the music like never before with the MartinLogan Grotto subwoofer. Item is used, but in good working condition. Cloth grill has a blemish on top left corner and a tiny hole on top, but does not affect the sound of the subwoofer. See picture. Shipping US is $99. Will ship within one business day.