Ground control to Major components.
The optimum configuration for each system is one Ground/Earth for the whole system. If a system has multiple Grounds/Earths, then it often creates unwanted ground loops. These systems will then have an annoying low-frequency hum (emitted from the speakers).
Current solutions either jeopardise (i) both safety and EMI shielding (e.g. cheater plug), or (ii) EMI shielding. And most are single country (US) uses only.
The GND Defender in the correct way, intelligently detects a ground loop and will cut the ground for that component.
AI ground detection.
With a GND Defender at the IEC power input, it will intelligently detect and remove the ground loop at the component.
Behind this, the GND Defender:
- Intelligently breaks DC ground loops to eliminate ground loop hum
- EMI shielding is retained
- Equipment Safety is unaffected (not a ground lift – so maintains equipment safety ground)
If multiple ground loops exist, more than one GND Defender may be required.
The GND Defender is smarter than the average ground lift. By a long way.
Battleship build.
The GND Defender is not only at the cutting-edge in terms of technology but also safety:
- High-performance glass passivated semiconductor
- High Case Dielectric Strength of 1500VRMS UL Listed
- X7R Capacitor
- High-temperature stability
- Flame resistant IEC socket/connector/chassis
- Fireproof polymers UL94-V0
Remember that best practice is to always keep at least one direct power cable connection.
Surge overload rating of 220A. With a maximum rating >10A, continuous current rating 7A, it handles all voltages around the world from 90-240V.
Intelligently block DC voltages from the mains to eliminate transformer hum. Equipment safety is unaffected.
EMI shielding is retained.
Turning Up The Volume Since 1972.
ListenUp has been the Rocky Mountain region's most trusted resource for high-performance home entertainment systems since 1972. We have four stores in Colorado and New Mexico to serve you, as well as a dedicated Custom Division for more elaborate systems, a renowned Commercial Division and an E-Commerce Division to handle online sales.
You love the music. We help bring it home.
The Warehouse Deals division was added in 2017 to bring you the best deals and bargains on open box, scratch/dent or clearance items. The department is headed by Edward Spar (above) and has already earned a sterling reputation as a trusted source of open-box items. Being a champion of ListenUp's business practices, ListenUpWarehouseDeals will always work to give you the best solution at the best deal for your needs.
The best products from the best vendors.
We are proud to represent the finest manufacturers in the world, such as Audioengine, AudioQuest, Definitive Technology, Denon, Harman Kardon, Klipsch, Marantz, NAD, PSB, Polk and more. Whether you are interested in an A/V receiver, a new set of speakers or a desktop digital music system, a single component or a customized whole-house system, we have a solution to fit your exact needs.
Shipped within ONE BUSINESS DAY*
We want you to have your purchase as soon as possible, so we ship all orders within one business day of when the order is placed and paid for.
Due to the high value of some items, your item may be shipped with a signature required upon delivery.
*While this applies to most orders, it does not apply to items that are drop-shipped from different warehouses or have to be shipped via an LTL carrier.
60-day Money-back Guarantee with FREE RETURN SHIPPING
We want you to be absolutely satisfied with your purchase. If you're not, you may return any product within 60 days. You can either exchange it for a different product or we'll refund your money - it's totally up to you. Just contact us for a return authorization number via eBay connection/ask a question, make sure the product is in like-new condition, and pack everything (including remote, owner's manual, power cord, etc.) securely in the original packaging. We'll even pay for the return shipping.*
*Items that are specially delivered, such as some larger televisions, floorstanding speakers and furniture, are not included in this offer. If a product is defective or damaged, however, there is no charge for returning it, and there is no re-stocking fee as long as all of the original equipment is complete and returned in good condition.
Credit or Exchange - 60 days
You may return merchandise for credit toward a future purchase or exchange for another item any time within 30 days of purchase. You may contact us via eBay connection/ask a question. We will notify you of your credit or exchange via e-mail once we have received and processed the returned item.
60-day Price Guarantee
If within 30 days of your purchase you find the same product advertised for less (from an Authorized Internet Dealer), we'll refund the difference. Just contact us via eBay connection/ask a question.
Exclusions
These policies do not apply to commercial or contract sales, which are subject to the terms of the contract. Installed equipment may not be returned for refund, credit or exchange, except by agreement of the Webmaster and payment of a restocking fee. You may contact us via eBay connection/ask a question. We will notify you of your refund credit or exchange, via e-mail, once we have received and processed the returned item.
Warranty
ListenUp's warranty/logistical support only extends within the United States. If a unit is taken out of the United States and there is any reason to activate the warranty or return process, you would be responsible for all shipping and fees involved with moving the product outside the US.
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