Hello. Thank you for your question, and we hope all is well. This is a backbox enclosure for the MartinLogan XTC8-HT speaker. Its use is to help prevent sound from coming from the back of the speaker that can distract those in the rooms above the speakers. They offer 20dB of noise reduction into adjacent areas and offer the perfect solution to achieve consistent performance where ceiling cavity sizes may vary throughout an installation. Please note that the volume of air in the retrofit enclosure is smaller than that of your ceiling, and bass extension will be reduced. If sound control is not necessary for your unique installation, we recommend not using the backbox so the speaker can take advantage of the larger airspace in your ceiling cavity. We hope this helps, and thanks again for your questions.

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MartinLogan - Motion XT Series CI, Retro-Fit Backbox Enclosure for XTC8-HT - Black/Silver-Front_Standard

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Hello. Thank you for your question, and we hope all is well. This is a backbox enclosure for the MartinLogan XTC8-HT speaker. Its use is to help prevent sound from coming from the back of the speaker that can distract those in the rooms above the speakers. They offer 20dB of noise reduction into adjacent areas and offer the perfect solution to achieve consistent performance where ceiling cavity sizes may vary throughout an installation. Please note that the volume of air in the retrofit enclosure is smaller than that of your ceiling, and bass extension will be reduced. If sound control is not necessary for your unique installation, we recommend not using the backbox so the speaker can take advantage of the larger airspace in your ceiling cavity. We hope this helps, and thanks again for your questions.
Answered by Anonymous 3 years ago
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