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ginbot86
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What's the difference between an STH-10 and STL-10?

Mon Apr 20, 2009 10:45 pm

I know that there are STH- and STL- 10's, but what is the difference between the two?
--Jason G.
Proud owner of 4 small sirens

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Trey
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Mon Apr 20, 2009 10:48 pm

STH10s were the high tone version of the two sirens (Single Tone High 10 horsepower). The STH10 had 12 stator ports and 12 horns.

STH10:
Image
STH10 Video

The STL10 was the low tone version of the two (Single Tone Low 10 horsepower). The STL10 had 7 stator ports and 7 horns.

STL10 Video
Last edited by Trey on Mon Apr 20, 2009 11:01 pm, edited 5 times in total.

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ginbot86
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Mon Apr 20, 2009 10:50 pm

Trey wrote:STH10s are the high tone version of the two sirens (Single Tone High 10 horsepower). The STH10 has 12 stator ports and 12 horns.

The STL10 was the low tone version of the two (Single Tone Low 10 horsepower). The STL10 has 7 stator ports and 7 horns.
Thanks. But what does the 10 in the name have to do with anything? Or is it just there?

EDIT: Oh, stupid me. I should have read more thoroughly. :oops:
--Jason G.
Proud owner of 4 small sirens

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Jpressman8
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Tue Apr 21, 2009 1:00 am

five liter V8

zetronist
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Tue Apr 21, 2009 9:42 pm

Actually, STH-10 stands for SPECIAL tone high, STL-10 is SPECIAL tone low, not "Single Tone" :-).

FWIW

John

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Trey
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Tue Apr 21, 2009 11:15 pm

zetronist wrote:Actually, STH-10 stands for SPECIAL tone high, STL-10 is SPECIAL tone low, not "Single Tone" :-).

FWIW

John
Ha! I still learn new things once in a while! :)

I've always heard both words used interchangeably though.

Since I got the STH/STL10 wrong, what does the SD10 stand for? I've always heard that stood for Special Dual 10 horsepower.

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Sat Apr 25, 2009 8:35 pm

Trey wrote:
zetronist wrote:Actually, STH-10 stands for SPECIAL tone high, STL-10 is SPECIAL tone low, not "Single Tone" :-).

FWIW

John
Ha! I still learn new things once in a while! :)

I've always heard both words used interchangeably though.

Since I got the STH/STL10 wrong, what does the SD10 stand for? I've always heard that stood for Special Dual 10 horsepower.
SD-10= SPECIAL DOUBLE-TONE 10HP.

Don't worry.... everyone makes that mistake :-)

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Jim Z
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Sat Apr 25, 2009 8:42 pm

what's so special about them? ;)

Robert Gift
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Sat Apr 25, 2009 9:06 pm

Jim Z wrote:what's so special about them? ;)
Funny.
I was about to ask that.
My Chinese wife call them "Garbage can on pole."

I recorded an SD-10.
Was very loud near the bottom of the pole from which I made the recording. I wanted to hear the pole-mounted controller operate.
Seems that too much sound goes down which would be.tter projected out.

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