STH10 STH10 STH10

[CosmicCharms5T]

hmmm, I am all for mechanical sirens over anything else but I gotta say I'm not a big fan of the STH10.. Why does it's wind up sound so underpowered! They sound like they are ready to burn-up and short out. The model 5 and 7 stand tall above this thing anyday.. Nice ripping fire in the background!

http://www.youtube.com/watch?v=Pmxf7XZW ... re=related

[holler]

That's not a fire in the background, it's lights from an industrial complex.

Has to be a single phase STH-10, this one that Derek recorded sounds much better.

http://www.youtube.com/watch?v=zKUIAMOT_sA

[ver tum]

The STH-10 in this new video also sounds much better. The one in your post sounded sick.

[CosmicCharms5T]

Both of those sound much better. Either they are wired up with better voltage or they are the early 10 horsepower version of the STH10. The newer 7 1/2 horsepower sounds weak! They don't ramp up to speed fast enough and sound sickning.

[Cyrun]

Our recently installed STH cranks up and sounds like the last two videos.