Boston Acoustics Speaker In Ceiling Speakers User Manual

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.  
10/8/2008 High Humidity Speakers Technical Brief  
Page 1 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 of being out in the sun.  
High Humidity Speakers Technical Brief Cont:  
Low Temperature -- According to the Mil Spec document, this simulates  
acceptability in a mild climate such as "coastal Europe and southeast  
Australia". This cycles from -6 degrees C to -19 degrees C (21F to -2F) for  
48 hours.  
High Temperature – According to the Mil Spec document, this simulates  
acceptability in a Hot climate such as "North Africa, the Middle East,  
Pakistan, and India, southwestern US and northern Mexico". This cycles  
from 32 C to 49C (90F to 120F) for 48 hours.  
IEC 529 IP Ratings:  
Boston Acoustics High Humidity models are tested against the IEC529 IP  
rating. This is a standard rating in which to pass the speaker must function  
properly at the conclusion of the test. These speakers must meet all of the  
frequency response and power handling specifications as listed. Boston  
tests these speakers to an IP X5 rating.  
Degrees of Protection Against Water  
(tests implemented using fresh water)  
IP X0 - Not Protected  
IP X1 - Protected against vertically falling water drops; drops have no  
harmful effects.  
IP X2 - Protected against vertically falling water drops when enclosure is  
tilted up at a 15° angle; drops have no harmful effects.  
IP X3 - Protected against water sprayed at up to a 60° angle; water has no  
harmful effects.  
IP X4 - Protected against splashing water from any direction; water has no  
harmful effects.  
IP X5 - Protected against water jets from any direction; water has no  
harmful effects.  
10/8/2008 High Humidity Speakers Technical Brief  
Page 3 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 High Humidity speakers embody everything it  
means to be from Boston.  
Boston Acoustics maintains an ongoing program of product improvement.  
Speakers are under constant testing and quality control auditing to ensure that  
they always meet or exceed our published specifications. If you have any  
questions please e-mail our Product/Technical Support staff at  
These models offer a limited warranty to the original purchaser purchased from  
an authorized Boston Acoustics dealer, including authorized internet partners.  
This warranty protects against defects in materials or workmanship that occur in  
normal use of the Boston Acoustics product for 5 years and will be repaired  
without charge for parts and labor. If product cannot be repaired, it will be  
replaced with a comparable product or (at Boston Acoustics’ discretion) a refund  
of the current retail price of the product. It is the customers’ responsibility to use  
the unit according to the instructions supplied, to provide safe and secure  
transportation to an authorized Boston Acoustics service representative, and to  
present proof of purchase in the form of the original sales receipt to establish  
warranty coverage. The customers’ sales receipt should note the model, serial  
number and date of purchase from an authorized Boston Acoustics dealer.  
10/8/2008 High Humidity Speakers Technical Brief  
Page 4 of 4  
 

Belkin Network Router F5D7230ea4 E User Manual
Blanco Indoor Furnishings 501 114 User Manual
Blockhead Video Game Controller BH4001 User Manual
Bosch Appliances Washer Nexxt DLX User Manual
Brinkmann Landscape Lighting Solar Garden Accent Lights User Manual
Britax Bouncy Seat Child Seat User Manual
Brodit Car Video System Headrest Monitor User Manual
Brother Printer 4000CN User Manual
Canon High Chair G1 User Manual
Carrier Refrigerator 19CB User Manual