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conducted; Humidity, Low Temperature Cycle, High Temperature Cycle, UV Exposure,
and Salt Spray.
Salt Spray
48 hours continuous light spray consisting of 5% salt solution. This tests for resistance to
the effects of an "aqueous salt atmosphere". It also gives a general indication of resistance
to rusting.
Humidity
48 hours of cycling. Starts at 100% humidity @ 27 degrees C; goes to 95% @ 35degrees
and goes back to 100% at 27 degrees. It is to indicate resistance to a warm humid
atmosphere.
Solar Radiation
This test is run 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.
Low Temperature
This cycles from -6 degrees C to -19 degrees C (21F to -2F) for 48 hours. According to
the Milspec document, this simulates acceptability in a mild climate such as "coastal
Europe and southeast Australia". High Temperature -- This cycles from 32 C to 49C (90F
to 120F) for 48 hours. This simulates acceptability in a Hot climate such as "North
Africa, the Middle East, Pakistan, and India, southwestern US and northern Mexico".
IEC Water Splashing
The products passed a rating of IP-X4 (which is also the CEE rating in Europe). IP-X4
allows us to officially call them "splashproof". Although people may have different
conceptions of the term "splashproof", this is the IEC and CEE definition of a
"splashproof" rating.
What are the characteristics of the matching transformers in the
EVID models?
EVID speakers incorporate high performance transformers that are very stable at all
frequencies in their range and exhibit very little low-frequency saturation. The matching
transformers in all the EVID units are designed to provide full rated output down to the
low frequency limit in its specification with virtually no saturation. In addition, the
insertion loss of less than 0.5 db is extremely low. This results in less heat generation,
higher power transfer and more speaker efficiency.
In what application would I use the "t" versions rather than the 8
Ohm models?
In large wide area applications or where a large number of satellites are needed to cover
odd shaped or multiple room you would use the "t" models. Also, where the
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EVID Design and Installation Manual
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