NHT Powered Subwoofers Owner's Manual

Nht powered subwoofers owners manual
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Powered Subwoofers
Owners Manual



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  Summary of Contents for NHT Powered Subwoofers

  • Page 1 Classic Twelve Powered Subwoofers Owners Manual...
  • Page 2: Important Safety Instructions

    18. SERVICING - Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel. For service warranty information call the NHT Hotline number: 1-800-NHT-9993.
  • Page 3 Thank you for your purchase of the NHT Ten or Twelve powered subwoofer. Like all NHT loudspeakers, the Ten and Twelve develop- ment has been guided by the study of human hearing, it’s design rigorously tested, and its components optimized to deliver clean, clear musical sound.
  • Page 4 forcement may lead to low frequency response that is uneven. Some frequencies will sound exaggerated rela- tive to others, or the subwoofer will sound thin and lack impact. The Boundary EQ control allows you to com- pensate for the effects of room boundaries on the fre- quency response of the subwoofer.
  • Page 5 Out is an unbuffered pass through used for multiple subwoofers. (9) Hi Level Input - Speaker level input connector. (10) Power Switch - Turns the unit on and off (11) Fuse Holder - location of the user servicable fuse...
  • Page 6 L & R speakers. If you find that your receiver will not accommodate more than one cable per output terminal, check with your NHT dealer for alternative methods of connection. With all signal connections complete, it is now time to apply AC power.
  • Page 7: Frequency Chart

    Fine Tuning the Subwoofer The key to good subwoofer / speaker integration is repeated listening, followed by making small re-adjust- ments of the subwoofer controls. The most important bass tuning functions you will control are the LOW-PASS FILTER, followed by the VOLUME CONTROL settings and then PHASE SELECTOR.
  • Page 8: Operation

    Clean cabinets, when necessary, using a damp cloth or a mild, non-abrasive cleaner; to clean grilles, remove from speaker and use a soft brush or a vacuum on its lowest setting. Do not attempt to clean the actual driver.
  • Page 9 DSS or cable system is not a legal or moral option. We use a grounded power cord on our powered subwoofers and amplifiers to ensure that the customer is always safe. If there is ever any internal...
  • Page 10 Satellite: Front L & R speakers when used with a sub- woofer. Also referred to as "main speakers". Sensitivity: A ratio of voltage across the speaker load to the acoustic power output, measured in decibels. Sub Out: An line level output for connection to a sub- woofer or subwoofer signal processor.
  • Page 11 Warranty Period For a period of 5 years for parts and 5 years for labor (1 year parts and 90 days labor for electronics) from the date this product is first purchased from an authorized NHT dealer, Now Hear This (NHT) warrants that if it fails to function properly due to a manufacturing defect, despite its being installed and operated according to these instruc- tions and used under normal conditions, it will be either replaced or repaired with new or rebuilt parts (both at NHT's option) with a unit of comparable value without charge to you.

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Classic tenClassic twelve