Both the dual and single horn Sirexes are equally as loud. The only thing that differs between the two is that the Sirex only has a single horn, while the Super Sirex has two.
Both the dual and single horn Sirexes are equally as loud. The only thing that differs between the two is that the Sirex only has a single horn, while the Super Sirex has two.
the vertical si-rex sirens like siro-dome and etc are quiet
The internet has the answers to most of the questions you're asking here, why don't you search first and then come here for questions
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