Taken in isolation from the context that the sirens were activated under, I'd score both videos 12 out of a possible ten.

M-5...to (hopefully) be precise.

AS I heard it, that one xT22 performed extremely well. It took 4 or 5 of the 2001's to keep her from sounding as loud as she could've.

^^^^
Thanks. I knew it had to be something related to the motor type and power supply.

Some of the comments on the video referred to this model ultimately replacing the 2001's. Is this speculation? And the model name I assume: 508= 50 for HP + 8 for port number (although I though 8 ports registered a lower tone...sort of B flat to B major. This sound like C. It must require a lot of p...

The ambience is maybe one of the scariest I've heard yet. Nice collection.

Amazing post.

Almost sounds dirgeful, what with the minor fifth chord happening...and how the harmonization persists practically throughout the wind-down.

That convinces me that they're connected to the same timer.

I deleted my post questioning the validity of the clip. The two comments on it lead me to believe that this model came in a rare 8-port version. It just sounded a bit too RM-127ish to me at first.

IIRC the dualtone Banshee's windup is hellaquick too. Any of those in the area?

Seems to be running on half power. Has it always been so, as I just read elsewhere that we and Canada share the same voltage system? But yeah it is extremely puny for its distance. I heard this recording thru my earphones and max volume, and there was a dualtoned something or other that kicked in (t...