Velodyne Acoustics Official Manual for Velodyne HGS Series Subwoofers
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Congratulations!

Congratulations on your purchase of a Velodyne subwoofer system. This system represents the absolute state of the art in accurate low frequency reproduction. We believe this to be one of the finest subwoofers available anywhere! In this new subwoofer, we have combined our radical new driver & amplifier designs to obtain our traditionally accurate sound while increasing efficiency and output to new standards. This exceptional subwoofer will provide you with years of unparalleled listening pleasure. Enjoy!

Caution!

Please observe the following instructions to insure safe and proper system operation.

Warning!

To prevent fire or shock hazard, do not expose this equipment to rain or moisture. To avoid electrical shock, do not open speaker enclosure or amp chassis cover. Please observe all warnings on the equipment itself. There are no user serviceable parts inside. Please refer all service questions to your authorized Velodyne dealer.

Prior to installation

Please unpack the system carefully! This unit is heavy. Use caution when lifting or moving to avoid injury. Remove all staples used to seal the carton as they can scratch the cabinet. Please save the carton and all packaging materials for future use. Packing this unit in any other carton may result in severe damage when shipping. Please take a moment to record the serial number and date/location of purchase in the space provided on the warranty card for future reference.

Important Note: Do not move unit while plugged in!

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control system is a low mass accelerometer rigidly attached to the voice coil. The accelerometer continuously monitors cone motions, providing a feedback signal for the servo control circuitry. This high-gain system is designedtoimprovelinearityandreducedistortionapproximately30times over conventional non-servo systems. While the input signal is being sent to the amplifier which powers the driver, a continuous signal representing cone motion is being sent to a comparator circuit. This circuit constantly adjusts for any deviation between the input signal and the subwoofer's output.Thisselfregulationresultsinextremecontroloverconemovement, and very accurate low distortion sound.

Toprovidethepowerfordrivingthismassiveloudspeaker,weincorporated an extremely efficient Class D switching amplifier. This new amplifier featuresourpatentpendingenergyrecoverycircuitdesignwhichdrastically reduceswastedenergy(heat)ascomparedtotraditionalswitchingdesigns. One that iscapableof running cool to the touch and providing 1000 or 1250 watts(RMS-dependingonthemodel)ofpower!Attypicallisteninglevels, the HGSX produces less than 1% harmonic distortion with input signals extending to 20Hz. At higher levels the distortion barely exceeds 1%, far betterthananyconventionaldesigncurrentlyonthemarket. Thiscombination provides you with the best combination of clean, deep, accurate bass, without making any sacrifice to distortion.

Care of Your Subwoofer

Do not use any harsh detergents or chemicals to clean the cabinet. Abrasives, detergents, or cleaning solutions may damage the finish on the cabinet. We recommend using a damp cloth to clean the cabinet. During normal conditions, your new subwoofer may be left on continuously without any problems. The unit is equipped with a signal-sensing turn on/ offthatwillautomaticallyturnontheunitwhenasignalispresentattheinputs andturn offtheunit afterseveral minutes when there is no longer any signal at the inputs. If you plan to leave the subwoofer unused for an extended period of time, we recommend that you unplug the unit.

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Contents HGS-12X Other Velodyne Subwoofer Products Important Safety Instructions Installation WorksheetWichtige Sicherheitshinweise Vorsicht Gefährliche Spannung Nicht ÖffnenTroubleshooting and Service Importantes Consignes DE SecuriteCare of Your Subwoofer Prior to installationCongratulations Important Note Do not move unit while pluggedInstallation Velodyne Servo-Control SolutionProduct Features and Controls InputsDistortion in Loudspeakers Volume controlPhase adjustment 0/180 Low-pass crossover 40 to 120HzProtection Circuitry Line-Level ConnectionPlacement Interconnect Cables
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HGS-12X specifications

Velodyne Acoustics is renowned for its commitment to delivering high-performance subwoofers, and the HGS series—comprising the HGS-12X, HGS-10X, and HGS-15X—showcases this dedication. Each model in the HGS series incorporates cutting-edge technology designed to elevate the listening experience, making them ideal for both home theater setups and critical music applications.

The HGS-12X is equipped with a 12-inch driver that delivers powerful bass response while maintaining precision. It features a built-in 1,000-watt amplifier, ensuring enough headroom for dynamic peaks without distortion. The patented "Digital Signal Processing" (DSP) technology optimizes the subwoofer's performance by analyzing the incoming audio and adjusting the output in real-time. This results in accurate and deep bass that enhances the fidelity of any audio source.

The HGS-10X, with its 10-inch driver, is the most compact model in the series but doesn’t compromise on performance. It shares the same high-quality 1,000-watt amplifier and DSP technology as its larger counterparts, ensuring that it can produce rich bass tones despite its smaller size. This makes the HGS-10X an excellent choice for users with limited space who still desire powerful low-frequency output.

The HGS-15X, featuring a robust 15-inch driver, is designed for those who crave the deepest bass possible. Like the other models, it benefits from a powerful 1,000-watt amplifier, but what sets it apart is its ability to reproduce low-frequency sounds with remarkable clarity, making it a favorite for audiophiles and home theater enthusiasts alike. Its larger driver allows it to move more air, resulting in a bolder and deeper sound profile.

All models in the HGS series incorporate Velodyne's proprietary "Room Gain Compensation" technology. This feature adapts the subwoofer's output to account for the unique acoustics of the listening room, ensuring optimal performance regardless of the environment. Users also have the option to fine-tune their bass experience with adjustable volume, phase, and crossover controls.

In addition to their impressive performance characteristics, the HGS subwoofers are built with aesthetic appeal in mind. They sport a sleek design that fits seamlessly into modern home décor while being robust enough to handle heavy use.

In summary, the Velodyne Acoustics HGS-12X, HGS-10X, and HGS-15X subwoofers exemplify high fidelity and engineering excellence. With their advanced technologies, powerful amplification, and stylish designs, they cater to a range of preferences and requirements, making them a top choice for enthusiasts dedicated to outstanding audio performance.
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