The Siren Board

As the title reads, what is the difference between the two, other than the name.

One does voice and one doesn't.

Again, this means you can't tell the difference without opening something on the siren?

gman 1 wrote:Again, this means you can't tell the difference without opening something on the siren?

Not exactly. While both models share the same equipment on top of the pole (speaker head/drivers), they have different control enclosures specific to their model series. The WPS2900 series utilizes either a "Type 2" or a "Type 3" control enclosure depending on number of cells or other options, whereas the Omni-Alert series uses the "Type 1" (Vortex) control enclosure. The Type 1 enclosure uses a single large hinged door that allows access to both the control compartment as well as the batteries all at once, and the Type 2 or 3 enclosures have a separate door for the control compartment with either a single removable panel or a second hinged door (depending on age of manufacture; later ones have a door while earlier ones have the slide-off panel) for accessing the batteries. The Type 2 enclosure has a single row/pair of batteries for speaker arrays containing up to 5 cells, while the Type 3 enclosure has two rows/pairs of batteries for speaker arrays containing 6 or more cells.

Hope this clears it up a little better for you!

I'll add that the Type I holds 4 amps, so the largest model it the OA4. It's basically a WPS-2904 head coupled to a Vortex R4 controller minus the bits that control the rotator. On a side note, I find it interesting how McCord doesn't sell them nor the 2910. Seems kinda odd.