Boston Acoustics In-Ceiling Speakers Manual Do Utilizador

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10/8/2008 High Humidity Speakers Technical Brief                                      Page 1 of 4 
 
 
High Humidity Weather Resistant In-Ceiling Speakers Technical Brief  
V2 10/6/08 
 
General Description: 
Boston Acoustics Weather-Resistant Custom In-Ceiling Speakers are designed 
for outstanding durability as well as exceptional sonic performance. These 
weather-resistant speakers can be used in bathrooms and other moist interior 
locations as well as exterior locations that include some protection from the 
elements.   
  
No speaker is completely weatherproof. Salt water, driving rains, direct sunlight, 
and freeze and thaw cycles will degrade all materials over time.  Unprotected 
outdoor locations may cause the speaker to deteriorate more quickly. To ensure 
protection from the elements, speaker cones are made of polypropylene and 
surrounds are made of rubber. The woofers are attached with coated steel 
fasteners and coated steel speaker grilles that provide additional protection for 
the drivers. The speaker frames are made of ABS plastic and are UV resistance 
so they can be used outside near sunlight. For added durability and better 
performance in these environments, Boston Acoustics weather-resistant models 
are further protected from the elements by; completely sealing the electrical 
components including the entire crossover board in a special conformal coating; 
using waterproof switches and using a moisture-resistant seal between the 
tweeter post and the voice coil.  
 
Weather Resistant Features: 
Tweeter – The tweeters HSi H460T2 are made of polypropylene material which 
is highly resistant to both temperature and moisture. The soft dome Kortec® 
tweeters on the VSi H470T2 are covered in a coating that is highly resistant to 
temperatures and shed water very easily and it is highly moisture resistant. 
 
Tweeter Post and Woofer Voice Coil – The tweeters on the Boston Acoustics 
High Humidity models are coaxial mounted over the woofer voice coil. Boston 
designed a special post collar that completely shields the voice coil from the 
intrusion of moisture. The collar is attached to the woofer cone and slides smooth 
on the tweeter mounting post.  
 
Woofer Cone – The HSi H460T2 use a coated fiber material which is highly 
resistant to both temperature and moisture. The polypropylene woofer on the  
VSi H470T2 is highly resistant to temperatures and shed water very easily and it 
is highly moisture resistant. 
 
Woofer Surrounds -- The surround is made of water-proof butyl rubber material 
that extends to the edge of the speaker frame for added protection.