Boston acoustics In-Ceiling Speakers - Manual

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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.

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Summary

Page 2 - High Humidity Speakers Technical Brief; Page 2 of 4

10/8/2008 High Humidity Speakers Technical Brief Page 2 of 4 High Humidity Speakers Technical Brief Cont: Grille – For all of Boston Acoustics are produced out of rustproof aluminum and are painted with a powder coat for additional protection against corrosion and salt. The speaker grilles can be pa...

Page 3 - Page 3 of 4; High Humidity Speakers Technical Brief Cont:; Low Temperature; Degrees of Protection Against Water

10/8/2008 High Humidity Speakers Technical Brief Page 3 of 4 High Humidity Speakers Technical Brief Cont: Solar Radiation -- To determine the effects of being out in the sun, such as yellowing or chalking. 48 hours of very intense UV (1120W/sq m). These 48 hours are supposed to simulate about 1 year...

Page 4 - Page 4 of 4

10/8/2008 High Humidity Speakers Technical Brief Page 4 of 4 High Humidity Speakers Technical Brief Cont: Boston Acoustics loudspeakers have been exceeding the expectations of serious music listeners for over 25 years. With advanced engineering, innovative design and high quality manufacturing, our ...