This thing thumps. It’s clean, punchy, and powerful. MartinLogan services it and put in a new power supply and amp in 2021. Almost no hours on it since then. I also have listed a Denon receiver and some surround speakers listed. You could save on shipping if you want to bundle.

Bigger, deeper bass from a smaller subwooferThe MartinLogan Dynamo™ 800X offers these features:300-watt (continuous) amplifierlower frequency extension, down to 24 Hzdiscrete L/R and LFE RCA inputsETC (Energy Transfer Controller) spikes for better bass on carpeted floorscan convert to a front-firing configurationwoofer features a higher-quality cast basketFeatures & specsEnclosureSealedWoofer Size (inches)10Woofer CompositionPolypropyleneFiring DirectionFront/DownAmplifier Output (watts)300Frequency Response24-200 HzConnectionsPreamp-Level InputsStereo RCA/LFESpeaker-Level InputsBanana plugsSpeaker-Level OutputsNoWirelessOptionalControlsLow-Pass Crossover Freq35-120High-Pass Crossover FreqN/APhase SwitchYesApp ControlNoRemoteNoOther InfoHeight (inches)13-13/16Width (inches)12-1/2Depth (inches)13-3/4Weight30 lbsSpeaker Parts Warranty3 Yrs w/ RegistrationSpeaker Labor Warranty3 Yrs w/ RegistrationAmplifier Parts Warranty3 Yrs w/ RegistrationAmplifier Labor Warranty3 Yrs w/ RegistrationProduct ResearchFeaturesPowerful, High-Excursion Woofer: The MartinLogan Dynamo 800X powered subwoofer features and advanced-design 10 polypropylene cone woofer with an inverted rubber surround and stamped steel basket, along with a powerful magnet, motor, and suspension design. This advanced-technology woofer pairs a high-power magnet structure with a low-mass diaphragm to provide massive excursion while perfectly preserving the tiniest bass detail. The exceptional damping properties of the cone ensure a smooth, non-resonant response necessary for truly seamless blending with high-performance loudspeakers. Every element of Dynamo 800X powered subwoofer has been meticulously designed to deliver an outstanding low-frequency performance without a hint of distortion.Class D Amplifier Technology: The Dynamo 800X powered subwoofers class-D amplifier is rated at 300 watts (RMS)/600 watts (Peak), operates with extremely low levels of distortion, and delivers dynamic impact with plenty of overhead. Low- noise, high-power switching power supplies produce clean power efficiently in a small space and effortlessly provide tremendous levels of current. Both feature high-quality MOSFET transistors, transformers, noise-suppression networks, and control circuitry. The switching power supply combined with reliable class-D technology means theres virtually no energy lost in the subwoofer system.Acoustically Inert Sealed Enclosure: The Dynamo 800X features a compact, sealed (acoustic suspension) enclosure that minimizes transient-blurring group delay while maintaining smooth, consistent response, regardless of music or movie source material. The cabinet is constructed from the finest composite material for acoustic integrity. Inside, critically placed structural cross-bracing provides a stable foundation for the woofer, while the added rigidity keeps cabinet-induced resonances and non-linearities to inaudible levels.Inverse Mathematical Equalization (IME) Filter: The IME filter used in the Dynamo series powered subwoofers is derived from the inverse of the unfiltered driver response. Precision IME filtering yields extremely accurate low-frequency response; superior to that provided by the simple second-order high-Q filters typically found in subwoofers in this price range.Volume Level Control: The volume level control (min-max) on the powered subwoofer can be dialed in to match the output level of your loudspeakers. All other controls (such as the Low Pass Filter, Phase/Polarity, Listening Modes, and more) are handled through the MartinLogan Subwoofer Control app for Apple iOS and Android (see below). The volume level control can also be done from the app (there is a switch on the subwoofer to select between using the volume level dial or the mobile app).MartinLogan Subwoofer Control App: MartinLogans Subwoofer Control app (for Apple iOS and Android OS) uses a Bluetooth connection to simplify setup and configuration of the Dynamo 800XX from your compatible smartphone or tablet device. App based controls include volume level, low-pass filter (frequency and order), phase, 20-30Hz level, three preset listening modes, and control of Anthem Room Correction. A unique tone sweep feature assists users in locating areas in listening rooms where troublesome rattles or resonances may occur.Volume Control & Tone Sweep: Volume Control allows you to adjust the loudness of your subwoofer from -40dB to 12dB. A unique Tone Sweep feature assists users in locating areas in listening rooms where troublesome rattles or resonances may occur. A single press of a button allows listeners to initiate a tone sweep from 20-120Hz. If a rattle or resonance occurs in the room any frequency can be held, allowing the listener to investigate and identify the source of the unwanted noiseLow Pass Filter: The Low Pass Filter screen lets you to adjust the low-pass frequency for the left and right (RCA or speaker level) inputs and select between a third or fourth order crossover. This setting is not applied to the LFE input, instead leaving the task of bass management to your audio/video processor. If youre using this subwoofer as a dedicated LFE channel, just set the Low Pass Filter to Bypass.Phase/Polarity: The Phase/Polarity screen allows you to adjust the phase of the subwoofer from 0-180° in increments of 1° and also allows you to invert the polarity of the phase.Listening Modes: Listening Modes let you apply preset listening modes to the subwoofer output. The Movie listening mode is an aggressive setting that maximizes device output for an especially explosive experience. The Music listening mode is balanced for an accurate musical presentation. The Night listening mode reduces bass output for discrete playback.20-30Hz Level: The 20-30Hz Level control allows you to adjust subwoofer output from -10dB to +10dB in the 20-30Hz range; a range where peaks (room gain) and dips of different amplitudes often develop in listening rooms. This control can also be used to add a little extra bass boost to your system when you feel the need.Anthem Room Correction (ARC) Mobile App: The Dynamo 800X supports the Anthem Room Correction App (for Apple iOS and Android OS) through a Bluetooth connection with your compatible smartphone or tablet device. The Anthem Room Correction app utilizes the microphone in your compatible mobile device and measures low-frequency sound output in a room, and then compares it to optimal response curves that account for spatial anomalies. The advanced algorithms of Anthem Room Correction effectively remove anomalies, leaving only the ideal standard with realistically blended, natural-sounding bass.Line-Level & Speaker-Level Inputs: The MartinLogan Dynamo 800X powered subwoofer features left/right stereo inputs and a LFE input via RCA line-level, as well as speaker-level connections in the way of banana plugs.Discrete Stereo & LFE Inputs: The Dynamo 800Xs dedicated stereo RCA and LFE inputs allow simultaneous connection of both two-channel stereo music and multichannel home theater and allows each source to have individual crossover and level settings, giving listeners a perfect performance in every application. The LFE input uses no low-pass filter, leaving crossover control to your AV receiver. Left and right inputs integrate discrete user-adjustable low-pass filters allowing different level and crossover points when playing back two channel music.Banana Plug Speaker Terminals: The powered subs speaker-level inputs consist of banana plugs for use with single banana connectors only. The speaker level inputs will not support bare wire connection and do not support dual banana connectors.Optional Wireless Kit The MartinLogan SW2-TRD wireless kit (sold separately) consists of a wireless receiver that plugs into the stereo RCA or LFE input of the Dynamo Series powered sub, plus a wireless transmitter which connects to your AV receivers LFE/subwoofer outputs. The SW2-TRD kit provides an uncompressed 16-bit/48kHz wireless 2.4GHz transmsision up to 40 for a stable wireless connection between the powered sub and your AV receiver. Both, the wireless receiver and transmitter, will require an AC power outlet connection.Note: The proprietary Martin-Logan SWT-X wireless kit is not longer available. The Wireless Module Connection port on back of the powered sub will not be used.Mounting Options: The MartinLogan Dynamo 800X can be configured as a front or down firing powered subwoofer for different applications. It also comes with rubber & spike feet for different floor types.Front or Down Firing: When placed in a cabinet or other discreet location, the Dynamo 800X powered subwoofer can easily convert from a down-firing to front-firing orientation, with no tools or special skills required. A grille is provided for use in front-firing applications.Rubber & Spike Feet: The Dynamo 800X comes with custom ETC spikes which can be used to enhance stability on thick carpets, or create tighter coupling between the subwoofer and your floor to enhance overall sound quality. The built-in spikes are conveniently and discretely hidden underneath the rubber feet.Dimensions: Here are the Dynamo 800Xs dimensions in a front or down firing configuration and with or without the rubber and spike feet.Down Firing with Rubber Feet: 12.5 (w) x 13.8125 (h) x 13.75 (d)Down Firing with Spike Feet: 12.5 (w) x 13.6875 (h) x 13.75 (d)Front Firing with Rubber Feet: 12.5 (w) x 14.6875 (h) x 12.8125 (d)Front Firing with Spike Feet: 12.5 (w) x 14.5625 (h) x 12.8125 (d)Auto Power On/Off: The powered subwoofer will automatically enter a power saving mode when no audio signal is detected. The subwoofer will automatically come out of power saving mode when an audio signal is detected. You can also manually turn the subwoofer On.12V Trigger Input: The MartinLogan Dynamo 800X is equipped with a12V Trigger Input (3.5mm; 5-24V DC), allowing an external device (such as your AV receiver) to turn the subwoofer on and off.

Brand new never used subwoofer, was only in storage and is great for home theater setups. Had to move to a wireless subwoofer and never got to sell it.

Enhance your home audio system with the MartinLogan Dynamo 700 Subwoofer in black. This subwoofer features wireless Bluetooth connectivity for easy setup and a sleek design that seamlessly fits into any home entertainment setup. With stereo L/R RCA audio inputs, this subwoofer produces deep and powerful bass that will elevate your music and movie experience. The 200ohm impedance ensures that the sound quality remains consistent throughout use. Ideal for use in any room, this MartinLogan subwoofer boasts a compact and stylish design that complements any décor. The Dynamo 700 model delivers exceptional sound quality without any compromise on style. Perfect for music enthusiasts and movie lovers alike, this subwoofer is a must-have addition to your home audio system.

The MartinLogan Dynamo 500 Subwoofer in black is a wired subwoofer with a maximum power output of 500W. It features digital coaxial RCA and stereo L/R RCA audio inputs. The model is DYN500D. It works, but sometimes is makes crackling noises when not in used.

Used - Like New: The item in perfect condition and fully functional. ??Minor scratches on the top, no original box. ????Free Local Pickup available in Wheeling, IL. SKU: 79-12

??The soundbar does not receive power. Selling AS IS. Returns are not accepted. SKU: 79-10

This thing thumps. It’s clean, punchy, and powerful. MartinLogan services it and put in a new power supply and amp in 2021. Almost no hours on it since then. I also have listed a Denon receiver and some surround speakers listed. You could save on shipping if you want to bundle.

Nice used Martin Logan Dynamo Subwoofer 10”, 200 watts In good working conditions. Please refer to pictures for cosmetics conditions. Shipped only inside US. Shipped with fedex or ups. Not shipped to PO Box.

The MartinLogan Dynamo 500 Subwoofer in black is a wired subwoofer with a maximum power output of 500W. It features digital coaxial RCA and stereo L/R RCA audio inputs. The model is DYN500D. It works, but sometimes is makes crackling noises when not in used.

Good overall condition, shows multiple dents and scratches on the cabinet. minor wears/dents/scratches Tested and works flawlesslyIncludes subwoofer and power cord onlyCome in original package, but the box and Styrofoam a bit damaged ... General SpecProduct NameDynamo 400 8 150W Ported, Compact, Powered SubwooferBrandMartinLoganModel NumberDYN400DColorSatin BlackColor CategoryBlackIncludedIntegrated AmplifierYesRemote Control IncludedNoCable(s) IncludedPowerAudioMinimum Frequency Response30 hertzMaximum Frequency Response200 kilohertzAmplifier ClassDLow-Pass CrossoverVariableEnclosure TypeBass reflexFiring DirectionDownSubwoofer TypePoweredEnclosedYesPeak Power Handling150 wattsSpeaker TypeFloorstandingFeatureIndoor Or Outdoor UseIndoorControlsVolume, Low pass filter, Phase, Power on/offConnectivityWirelessNoDimensionProduct Height15.2 inchesProduct Width13.3 inchesProduct Depth13.7 inchesProduct Weight28.4 poundsMaterialWoofer CompositionPolypropylene cone

Box has been unpacked for testing but otherwise unused. See photos for condition (subwoofer amp heatsink is slightly bent due to shipping but works perfectly) Please feel free to contact me with any questions! Returns will be checked for matching serial number.

The MartinLogan Dynamo 500 Subwoofer in black is a wired subwoofer with a maximum power output of 500W. It features digital coaxial RCA and stereo L/R RCA audio inputs. The model is DYN500D. It works, but sometimes is makes crackling noises when not in used.

MartinLogan Dynamo 400 8 inch 150W Powered Subwoofer - Black This item shows some visible signs of use such as scratches, scrapes, scuffs etc. Please see all pictures in the list for more details. Fully tested, working perfect, Come with power cord only. Features: Integrated Class D AmplifierDynamo 400’s Class D amplifier supplies 150W peak power (75W RMS) and operates with extremely low levels of distortion to deliver dynamic impact with plenty of overhead.Low Pass Filter and Phase AdjustmentProperly calibrate the subwoofer for seamless integration into any system.InputsDynamo 400 features Stereo RCA Inputs, a RCA LFE Input and speaker level inputs for maximum flexibility.Low-Turbulence PortDynamo 400 features tuned, long low-turbulence ports designed to provide superb low-end extension while minimizing port induced distortion.Inverse Mathematical Equation (IME) FilterThe IME filter used in the Dynamo subwoofers is derived from the inverse of the unfiltered driver response. Precision IME filtering yields extremely accurate low-frequency response.

The MartinLogan Dynamo 500 Subwoofer in black is a wired subwoofer with a maximum power output of 500W. It features digital coaxial RCA and stereo L/R RCA audio inputs. The model is DYN500D. It works, but sometimes is makes crackling noises when not in used.

Item includes one powered MartinLogan Dynamo 700w subwoofer, grille cover, detachable feet and wireless transmitter. Item ships domestically for Free! MartinLogan delivered with this compact, powerful Dynamo 700w subwoofer. Featuring a high-current 300-watt RMS, 600-watt peak amplifier and 10-inch cone driver, the Dynamo 700w delivers deep, tight, effortless bass for home theater or stereo music. Makes movies and music sound fuller and more dramatic. Its standard down-firing configuration quickly (and easily!) converts into a front-firing setup for those who prefer a hidden installation. Includes wireless transmitter and receiver for bass aficionados who prefer a clean, minimalist look in the room, with no cables in sight. This is a high quality built Subwoofer that going to last a long time. Specifications Frequency Response24–200 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, poly cone with extended throw drive assembly; sealed non-resonant cabinet designAmplifier300 watts (600 watts peak)Audio ControlsLow Pass Filter Switch: Bypass (LFE In), Variable (Left and Right In)Low Pass Filter Frequency35–120 HzResolution16-bitSampling Rate48kHzWireless Band2.4GHz digital self-sensing design constantly adjusts for best connection.Error CheckingBidirectional feedback constantly monitors integrity of data stream.AntennaInternalSubs Per TransmitterOneMaximum Wireless Range30–40 feet (10–12.5 meters)Wireless ReceiverBuilt-in receiver and included SWT-2 transmitterInputsLeft and Right/LFE RCA line levelPower DrawStandby: 1WIdle: 15WMax: 400WWeight26.5 lbs. (12 kg)Dimensions (down-firing orientation) 12.54 × 11.69 × 12.53(31.9cm × 29.7cm × 31.8cm)Dimensions (front-firing orientation) 13.47 × 11.69 × 12.31(34.2cm × 29.7cm × 31.3cm) *For more information please contact seller or visit website below. https://www.martinlogan.com/en/product/dynamo-700w

The MartinLogan Dynamo 500 Subwoofer in black is a wired subwoofer with a maximum power output of 500W. It features digital coaxial RCA and stereo L/R RCA audio inputs. The model is DYN500D. It works, but sometimes is makes crackling noises when not in used.

MartinLogan Dynamo 500 Powered Subwoofer - Black

ELECTRO CITY TRADING CONDITIONUsed works great. Sub has scratches on top (SEE PICTURES). Sub has marks and scuffs due to usage. Items are tested and may have minor signs of handling. Packaging may be damaged. Returns will NOT be accepted if serial numbers do not match. A restocking fee of 20% will be deducted from refund for ALL items returned for any reason other than DOA (Dead On Arrival) We don’t ship Saturday and Sunday, Please allow 1-2 business days for questions to be answered. Please contact us if you have any problems with the item. We ship items within a couple of hours from the purchase. We appreciate your positive feedback. Thank You All

Enhance your audio experience with the MartinLogan Dynamo 500 Subwoofer in black. This high-performance subwoofer delivers powerful and clear sound, making it perfect for home audio systems. With a wired connectivity option, it seamlessly integrates with your existing setup. The MartinLogan Dynamo 500 Subwoofer boasts a sleek black color and a sturdy build. It has a maximum RMS power of 500 W and supports digital coaxial RCA as well as stereo L/R RCA audio inputs. Ideal for music lovers and home theater enthusiasts, this subwoofer is a must-have addition to your entertainment setup.

MartinLogan Dynamo 500 Powered Subwoofer - Black DescriptionUsed Product Identifiers Brand MartinLogan MPN DYN500D GTIN 0877929004934 UPC 0877929004934 Model Dynamo 500 eBay Product ID (ePID) 2255463041 Product Key Features Audio Inputs Digital Coaxial RCA, Stereo L/R RCA Color Black Connectivity Wired RMS Power 500 W Type Subwoofer Dimensions Width 13 length 10.0 in About Us About Us About Us Thank you for considering a purchase from our business. Our business focuses on providing high-quality service and customer satisfaction – we will do everything we can to meet or exceed your expectations. Our eBay store tries to bring you the most reliable, and most affordable products available.   Payment Payment Payment For your convenience, we accept credit, debit, and gift cards, Apple Pay, Google Pay, PayPal, and PayPal Credit. Should there be a problem with payment please do let us know. Shipping Shipping Shipping We offer FREE shipping for all US Residents. Your item will be shipped between 24-72 business hours after receiving your order. Because of the efficient manner of our ordering system, orders placed cannot be canceled half an hour after they are made. Check our feedback to see the great reviews of FAST shipping we offer. NO PO Boxes. Item can only be sent to a physical address. NO APO, FPO, DPO, Or US territories and protectorates. Returns Returns Returns Items must be returned in original, unused condition within 30 days with original tags and/or packaging. When we receive your package we will process the return within 72 hours. You will receive a full refund for the cost of the merchandise less all return shipping costs. We do our best to process as quickly as possible. We are extremely fair and in the rare event of something out of the?ordinary happening with our products or shipping, we will gladly work with you to find a solution. If you have any other question please contact us first before you make a purchase!. Customer Feedback Customer Feedback Customer Feedback Customer satisfaction is very important to us. If you have any problem with your order, please contact us and we will do our best to make you satisfied, please do not leave a negative feedback before we resolve your problem. We guarantee that your issue will be solved quickly. As long as you are happy with your purchase, please leave us a positive feedback. Your feedback is very important to us as it affects our search placement on eBay. We will leave a positive feedback for you in return automatically once we receive your feedback. Sell Smarter with Kyozou.Inventory and Ecommerce Management

The MartinLogan Dynamo 500 Subwoofer in black is a wired subwoofer with a maximum power output of 500W. It features digital coaxial RCA and stereo L/R RCA audio inputs. The model is DYN500D. It works, but sometimes is makes crackling noises when not in used.