There’s a siren with a name that I can’t remember, here’s what I remember about it:
- Omni-directional
- Electric (like the mod series)
- Simalar looking to the image in link below http://www.sentrysiren.com/site/wp-cont ... ries_1.png
- I heard a video of one testing, it was like a whoop tone but extremely fast and no quiet spaces between each whoop
If you know what it is, just post in here. Also, any location/image would be helpful, too.
Re: Rare siren name?
Posted: Wed Aug 28, 2019 11:51 am
by uncommonsense
Are you thinking of the HyperSpike? Since Sentry's electronic sirens are actually HyperSpikes rebranded, that photo won't be very helpful if it isn't.
Re: Rare siren name?
Posted: Wed Aug 28, 2019 3:04 pm
by freebrickproductions
Want to say Scott (emofficer) posted a video or two of the one he got to sample from Sentry on here.
Want to say Scott (emofficer) posted a video or two of the one he got to sample from Sentry on here.
On YouTube? If so then I need a channel link
Re: Rare siren name?
Posted: Thu Aug 29, 2019 12:10 am
by DJ2226
The sirens are the Sentry VR series. It's based on Ultra Hyperspike's MA series with the VR-1(600 watts, 1/4 mile range, 0.84 STi), VR-5(1375/1600 watts, 1/2 mile range, 0.91 STi), and VR-10 using the MA-Micro, MA-1, and MA-2 speakers respectively; the STi rating is the level of intelligibility of the speaker, and most sirens usually perform below 0.8.
I'm not sure what Sentry is powering it with as far as amplification goes, but if I had to guess they're using Ultra Hyperspike's Encompass Amplifier Cabinet. The cabinet comes with up to ten 320 watt amps, which is probably how the larger two models get their names under Sentry's product lineup. We know they are using a voice capable Gen 3 controller to drive the system however. I've written a post about the speakers in the past. They are a fraction of the size of the other omnidirectional sirens on the market. The 2908, 10 cell LRAD 360X, MOD8032B, and I-Force 3200 dwarf it in size and put out the same wattage of sound. They have a very high STi, second to the products from LRAD and not by much.
Sirens for Cities demoed a VR-5 in Huntsville running in mock-up tones. I don't know if they have a working tone generator for their sirens built into the controls or not, but in a demo on Sentry's Facebook page they have the siren running in that same high pitched whoop tone, what for making your ears bleed. Here are the videos of the Huntsville demo:
I probably should have paid closer attention to the OP before I made my post, but I might not have been too far off. In the video I embedded into my post of the MA-2 it does a really fast whoop that is apparently made to be used on a sound cannon to disperse a crowd. Another video that comes to mind and might be the one you've seen is an older one of the HyperSpike MA-2. Both were taken back when they used older housings for their MA speakers with the older of the two that I'll embed in this post using a different design with the MA-2 with 5 less speakers for a total of 25 instead of 30. I don't know why they have it listed as a MA-3. They might have mislabeled the video as the MA-3, which was basically 2 MA-2's stuck together. I'm not too sure if they still make it. Then again this is an older version of the MA head, so they might have different speakers inside.
