For your consideration is this very nice used Martin Logan Grotto subwoofer speaker. This example, serial number BEQ10690, is in perfect working order and includes an IEC power cable. I have several other Martin Logan speakers for sale, so please check out my other listings. Scroll down for high res photos.

Grotto 1 style high resolution servo control subwoofer system. In a storage unit, so if you need additional info or pictures can get upon serious inquiries only. Will ship protected in semi-rigid boxed mailer with foam. Product Specs: Frequency Response22–120 Hz ±3dB; Anechoic through LFE effects inputImpedanceLine level RCA: 20,000 Ohms. Compatible with 4, 6, or 8 Ohm rated amplifiers.Low Frequency Transducer10 (25.4cm) high excursion, aluminum cone with extended throw drive assembly, sealed non-resonant asymmetrical chamber formatAmplifier300W (at less than 0.5% THD) 900W (peak)Audio Controls±10dB at 25HzHigh Pass Filter Frequency70HzLow Pass Filter Frequency30, 35, 45, 55, 65, 80HzInputsLeft/Right RCA Line Level, RCA LFE, Speaker LevelPower DrawMax: 250 Watts Idle: 15 Watts Standby: 10 WattsWeight51 lbs. (23.2 kg)Dimensions18.6 × 15.2 × 13.8 (47.3cm × 38.6cm × 35cm)

Subwoofer is playing great and is in good Cosmetic condition minus a little hiccup here and there. Grill shows light damage in the picture.

For your consideration is this very nice used Martin Logan Grotto subwoofer speaker. This example, serial number BEOI100, is in perfect working order and includes an IEC power cable. I have several other Martin Logan speakers for sale, so please check out my other listings. Scroll down for high res photos.

Martin Logan Cadence Sound Bar with programmable remote and Grotto Subwoofer with wireless system. Ass kicking bass you will love for any audio system. Comes with Episode wireless transmitter and receiver so you can place it up to 30 feet away in any area. Amazing Marin logan spec for pure clean bass. Total Retail was $2800.00 All in wonderful condition. unit is in amazing condition no scratches or issues. Recommended line condition or power surge for AC for these units. Buyer pays fully insured shipping Here are the specs to this beast! Wireless kit $120 dollar value. If you need everything shipped let me know this stuff is quite hefty! Pickup available in Bonita Springs Florida. Thats two hours from Miami and 2 hours from Tampa. 25 minutes from Ft. Myers. Will ship free to Miami Florida please provide zip code information and exact address signature required.Item specificsConditionUsed: An item that has been used previously. The item may have some signs of cosmetic wear, but is ... Read moreabout the conditionBrandMartinLoganTypeSubwooferShapeTriangleAudio InputsStereo L/R RCA, speakerColorBlackModelGrottoConnectivityWiredRMS Power250 W

This unit was tested and is on good working conditions have some scratches around please see pics what you see is what you are going to get

Awesome Subwoofer! Everything works! Comes with power cable in excellent condition with very minor scratches and two scuffs on top as shown in pictures! And one small scuff on front speaker cover! Any questions just ask! Open to offers!

Experience rich, deep, and immersive sound with the Martin Logan Grotto Servo Control High Resolution Subwoofer System. This triangular-shaped subwoofer boasts an impressive 250-watt RMS power that delivers a powerful and distortion-free audio experience. Enjoy a seamless audio connection with multiple audio inputs including stereo L/R RCA and speaker connectivity. The sleek black design of the Martin Logan Grotto model blends seamlessly with any home decor. This wired subwoofer is perfect for home speakers and subwoofers, home audio, TV, Video & Home Audio, and consumer electronics. Elevate your audio experience with the Martin Logan Grotto Servo Control High Resolution Subwoofer System.

Martin Logan / Grotto / Servo Control High Resolution Subwoofer Speaker System 0 false 18 pt 18 pt 0 0 false false false Subwoofer is in excellent, clean condition. Guaranteed to work or full refund. Comes with AC power cord shown. Please completely read the item description before bidding. If there is an issue with your item after you receive it, contact me immediately and I will do my best to clear up any problems and earn 5-star ratings from you. Shipping: Winning bidder to pay $55 for USPS shipping or FedEx Home Delivery plus delivery confirmation to U.S. only. If auction exceeds $250, shipping will include insurance and signature confirmation as well.International shipping MAY be available on smaller items. Please ask before bidding as some items are quite expensive to ship outside the U.S. Payments: Paypal only -- expected within 3 days after end of the auction. Click Here to View my Other Auctions!

Condition is Preowned Please look at all photos Sub has cosmetic issues like scratches and small scuffs and has a small tear in the fabric on the subwoofer has been tested and works.

Full home theatre system - 2 MartinLogan Purity hybrid electrostatic loudspeakers, 2 wired MartinLogan speakers on stands, 1 MartinLogan Feature hybrid electrostatic loudspeaker & 1 MartinLogan Grotto i subwoofer + Pioneer Elite SC-71 AV Receiver & Panamax M5100PM Power Conditioner. Minor cosmetic imperfections, see pictures Local Pickup in Brooklyn, NY

The MartinLogan Grotto subwoofer is a high-resolution, wired speaker with a servo control feature. It has a maximum RMS power of 250W and comes with a power cable. The subwoofer is designed in a triangle shape and is colored black. It has stereo L/R RCA and speaker audio inputs. The subwoofer works and sounds fantastic. The only reason why I am listing it is because I am downsizing my system.

Full home theatre system - 2 MartinLogan Purity hybrid electrostatic loudspeakers, 2 wired MartinLogan speakers on stands, 1 MartinLogan Feature hybrid electrostatic loudspeaker & 1 MartinLogan Grotto i subwoofer + Pioneer Elite SC-71 AV Receiver & Panamax M5100PM Power Conditioner. Minor cosmetic imperfections, see pictures Local Pickup in Brooklyn, NY

HEARTLAND PAWN LAWRENCE Martin Logan Grotto 10 Servo-Controlled Subwoofer Description: SPEAKERS/SUBWOOFER: MARTIN LOGAN MODEL GROTTO I, 10, 350W PEAK Details Condition Rating93% - Very Good - A well-cared for item that has seen limited use and is fully operational and functions as intended. It may or may not include the original box. Additional Details for eCommerceTESTED AND IN WORKING CONDITION. HIGH RES SUB SYSTEM. W/ PHASE CONTROL. 10. Cords, Cables, and Attachments89% - Includes primary cords, cables, connectors, and attachments, but may not be as provided by original manufacture Type?SUBWOOFER Size10 Output350W PEAK Notes: Martin Logan Grotto Servo Controlled Subwoofer : - Tested and in working condition - W/ power cable - 10 - Low pass filtering - Phase control - See photos for exact cosmetic condition PLEASE REVIEW PHOTOS for exact cosmetic condition and design details. Item will be carefully packaged & shipped fast! TERMS: If you have any questions that were not answered in the description above, feel free to send me a message prior to bidding/purchasing item. Photos are of actual item(s) being shipped unless stock photo present or otherwise stated. If you do not see an item that you believe should be included please send me a message to clarify: if it is not shown in the photos then it is considered not included unless stated otherwise. INTERNATIONAL BUYERS: Should you purchase an item and it is not as described or does not work as described, you are responsible for return shipping. WE ARE NOT RESPONSIBLE FOR RETURN SHIPPING! YOU ARE RESPONSIBLE FOR SHIPPING FROM YOUR COUNTRY TO A US PORT. IF YOU DO NOT AGREE TO THESE TERMS, DO NOT BUY THIS ITEM! Shipping Your item will be shipped within 1 business day(s). After shipping your items will be delivered within 1-10 business days. About Us Heartland Pawnbrokers now with three locations! We might be new to Lawrence, but our team has over 40 years experience in the business! We buy, sell, trade, and loan!We buy and sell all types of electronics including laptops, phones, and tablets. Tools of all shapes and sizes. Purses and shoes. And of course, gold and silver jewelry and even some costume jewelry. Check out all of our listings, Im sure youll find something! Things I Buy: Gold, Silver, Bullion, Jewelry, Purses, Shoes, Collectibles, Laptops, Tablets, Cell Phones, Tools, Band Instruments, Guitars, Musical, Sporting Goods, Video Games, Coins, Keyboards, Subwoofers, Kicker, Stereo Bravo Omni-Commerce solutions offers Brick & Mortar stores the only fully integrated eBay API that seamlessly & effortlessly combines the in-store Point-of-Sale to all eBay commerce selling activities.

Full home theatre system - 2 MartinLogan Purity hybrid electrostatic loudspeakers, 2 wired MartinLogan speakers on stands, 1 MartinLogan Feature hybrid electrostatic loudspeaker & 1 MartinLogan Grotto i subwoofer + Pioneer Elite SC-71 AV Receiver & Panamax M5100PM Power Conditioner. Minor cosmetic imperfections, see pictures Local Pickup in Brooklyn, NY

Martin Logan Ultimate Sound Bar Kit: Includes the Cadence 9 amp Sound Bar / Grotto Powered Subwoofer / Wireless system for the subwoofer and the Sofabaton programable remote control unit,. All together this package sold for $2600 MSRP. Everything is perfect condition and sounds amazing, The Grotto is an animal of bass response and the Cadence is amazing with nine independent amplifiers including blu-tooth technology for streaming music . System includes a wireless sub kit so you can place the sub anywhere in your room. The sofabaton remote will work with any brand system completely programable from their app and your cell phone,. An amazing deal for those who understand Martin Logans stellar reputation for high end audio. Buyer can pick in person. Naples Florida. 2 hours from Miami or we can ship. Will be pricey but no upcharge on shipping. Sub weighs 60 lbs alone. If your interested let me know and we can figure best option possible

Full home theatre system - 2 MartinLogan Purity hybrid electrostatic loudspeakers, 2 wired MartinLogan speakers on stands, 1 MartinLogan Feature hybrid electrostatic loudspeaker & 1 MartinLogan Grotto i subwoofer + Pioneer Elite SC-71 AV Receiver & Panamax M5100PM Power Conditioner. Minor cosmetic imperfections, see pictures Local Pickup in Brooklyn, NY

Martin Logan Ultimate Sound Bar Kit: Includes the Cadence 9 amp Sound Bar / Grotto Powered Subwoofer / Wireless system for the subwoofer and the Sofabaton programable remote control unit,. All together this package sold for $2600 MSRP. Everything is perfect condition and sounds amazing, The Grotto is an animal of bass response and the Cadence is amazing with nine independent amplifiers including blu-tooth technology for streaming music . System includes a wireless sub kit so you can place the sub anywhere in your room. The sofabaton remote will work with any brand system completely programable from their app and your cell phone,. An amazing deal for those who understand Martin Logans stellar reputation for high end audio. Buyer can pick in person. Naples Florida. 2 hours from Miami or we can ship. Will be pricey but no upcharge on shipping. Sub weighs 60 lbs alone. If your interested let me know and we can figure best option possible

Martin Logan Depth Subwoofer ESL GROTTO - Good working condition. Case was damaged and re-painted with stone and black paint. Comes with power cable only. See pictures as part of my listing description. Sold as is.

Martin Logan Grotto Subwoofer with wireless system. Ass kicking bass you will love for any audio system. Comes with Episode wireless transmitter and receiver so you can place it up to 30 feet away in any area. Amazing Marin logan spec for pure clean bass. unit is in amazing condition no scratches or issues. Recommended line condition or power surge for AC for these units. Buyer pays fully insured shipping Here are the specs to this beast! Wireless kit $120 dollar value.Item specificsConditionUsed: An item that has been used previously. The item may have some signs of cosmetic wear, but is ... Read moreabout the conditionBrandMartinLoganTypeSubwooferShapeTriangleAudio InputsStereo L/R RCA, speakerColorBlackModelGrottoConnectivityWiredRMS Power250 W

Martha Logan Amplifier works excellent not the speaker just the amp

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.