The Siren Board

robert powercall is company just like whelen and fedsig they make sirens for emergency vehicles to learn more go to www.powercallsirens.com

How good are the Dynamax speakers? From what I understand, they are 100W exponential horns with a very small footprint.

I wish I knew the Dynamax footprint.
I do not see how it can be as efficient as the CP-100 or next best TS 100
because it does not have the longer gradual exponential pathway to couple sound energy to the air.
But I sure like the way they fit in close spaces.
I wish someone could publish dB at 10 meters from same signal/wattage
into all speakers.

They are loud but do not have the same output of a cp-100 or ts-100. Seems the frequency is much more shrill and doesn't have the depth of the other speakers with the long reentry type cones. From my experience. The bp-100 speaker was the loudest sounding siren speaker at long distances. Is has a small reentry cone compaired with the ts-100. I would assume the construction, being some sort of casted metal, was helpfull. The ts-100's plastic construction may have allowed some sound pressure to "leak" through. The bp's metel cube design was much more directional too.

oh, and the EQ uses one dual voicecoil bp200 speaker. It should be much louder than it is. My old federal PA300 with a bp100 (100 watt compaired to 200 watts using a single dual voicecoil driver) was louder than this stupid EQ. I think the sampleing of the original Q has something to do with the lousey SPL.

q2bman wrote: The bp-100 speaker was the loudest sounding siren speaker at long distances. Is has a small reentry cone compaired with the ts-100. I would assume the construction, being some sort of casted metal, was helpfull. The ts-100's plastic construction may have allowed some sound pressure to "leak" through. The bp's metel cube design was much more directional too.

Thats one reason why they cost wayyy more than a standard TS-100. I've never played with a BP much, so I dont know to much about em.