During the unprecedented impact of COVID-19 we have reduced both staff and hours of operation. Because of this, all calls may not be answered. For all technical support related inquires we encourage you to email service@martinlogan.com and sales@martinlogan.com for sales inquiries. Please expect a slightly longer response time than usual. Thank you for your understanding during this time.

Features and General Questions for Electrostatic Speakers

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I think my MartinLogan speakers have developed a problem. The right speaker is hissing even when the amplifier is disconnected.

Updated: Aug 24 2018

Your speakers are dusty. See the vacuuming FAQ. The electrostatic charge on the element has attracted airborne dust or pollen. Since 1993, all of our speakers have been built with a charging circuit board that only charges the electrostatic element when music plays. At other times they are not charged and cannot collect dust. You can get the same benefit by simply unplugging them whenever they are not in use. A power strip is an easy way to do that.