Phillips RT8P specs... Please!

[shawnra]

Hey, I was hoping that someone could point me to a specs sheet for the Phillips RT8P isodynamic tweeter.

any help would be appreciated, even if you just know some of the specs off the top of your head.

Thanks
Shawn

 

[shawnra]

even if someone knows the nominal impedance and spl that would be awesome and give me a good start to designing a crossover.

maybe what frequency these can reach down to.

Shawn

 

[shawnra]

can nobody weigh in on this thread at all!

could really use some input.

Shawn

 

[avguytx]

Found from this website and is the next to last tweeter:

Rectangular ribbon tweeter with wide sound dispersion, frequency response is perfectly flat, ideal diaphragm excursion, DC resistance is 7 Ohm, efficiency 90 dB (1W/1m), no resonance. Similar to RT 8, however, the protective grille is removable, the front plate is metal and the ribbon is a little wider. Outside dimensions (HxW): 120 x 135 mm with a 8.5 mm front plate, required cut-out: 92 x 90 mm (HxW).

Nice looking tweeter...

 

[shawnra]

thanks for the input, really helps. I'm teaming a pair of these with some Peerless N205WR3308 for my brother. We'll see how it comes out.

here's how far I've come with the cabinet so far, Solen had this tweeter on file so they were able to design a crossover for me, included it also.

Shawn

 

[sealy]

Cabinets look very nice. Not an inexpensive project, I'm sure. Should turn out excellent especially since you will have the correct crossovers.

 

[shawnra]

I gotta whole crap load of some seriously expensive speaker stuff hanging around.

not sure if I'm gonna sell it or build stuff, it's just a bunch of leftovers from many years of DIY Speaker building.

and yes those are the infamous ATC super mid's, those ones are the 8 ohm version.
Shawn