+1 internets to you good sir!

I thought all their sirens had to be dual-tone since they still have an active Civil Defense dept?

I never dreamed of my 1000 being THAT portable, but if your truck's big enough...
That is so freaking awesome!

I agree with you, but the 40v2t still sounds pretty scary from a distance and it's got a deep enough tone. It screams, but roars at the same time. I posted a link in my original post of one running a mile away from the camera. If it is ran under full speed it sounds exactly like a Cyclone. It even ...

Yeah, those little blowers work great. I needed to seal the output plenum since they were originally designed to pull a vacuum. They are a centrifugal compressor though, there's a diffuser in there that slows down the air and builds pressure unlike a blower vac or anything like that. Eric, didn't yo...

Well, we all know that lower tones travel farther and penetrate structures better, so Federal should be able to make that work for them. If the sound travels farther, fewer units would be needed to cover a given area so the Equinox could be advertised as a "cost-effective" long-range sire...

My only concern is how hard it'll be to convince cities that the 4db drop is worth it. My old 1000 would annihilate the 2001 that was a quarter mile away, even without full plenum pressure. I was maybe pushing 124-125dBC at 100'. It penetrated my neighbor's house across the street to the basement, a...

Weird that they only dropped 20Hz in one generation of tone card, but thanks for the info!

What explains the 460's then? Are they newer?