2 way with 12" + horn

Hi,

I am considering building a 2-way with a Faital 12PR320 as a bottom and a compression driver on top. I had a look at the 18Sound XT1464 horn coupled to a ND1460A driver.

I cannot seem to conclude whether the beam widths will match at a reasonable crossover frequency as the horn is quite narrow and whether I have missed anything else.

Your thoughts, please 🙂
 
Are there polars somewhere? From the looks of it, the Faital plays high enough & the 18sound low-enough to be a slave to whatever the polars say. I predict a good chance at a successful project if the drivers sound meets your approval 🙂
 
I just ordered some 12PR320 to use in this configuration, sealed cabinets. I've used the 12PR300 in the past and it's nice crossed over at 1300hz, but that is to a 90 deg horn. You can cross the Faitals at perhaps 1500-1700hz to match the narrow pattern but you'd want to get some good polars to determine exactly where. The great thing about these Faital PR woofers is that they are so flat and clean even an octave above these XO points, and it makes the design so much simpler. And they just sound great.

BTW I have a pair of HF108 for sale in the swap meet forum. I decided to go with the HF10AK because it matches my horn throat a little better. But I would definitely look for a polymer diaphragm in any case, I think it makes a difference.

edit: just realized you are looking at 1.4" horns. In that case maybe look at the Faital 15" woofers and cross lower to match directivity.
 
Last edited:
I have the Faital 12PR300 crossed BW3/BW3 at 1,300Hz to the Faital HF108 1" CD mounted on the PartsExpress B52 horn. Very pleased with the sound with either passive or active crossovers.

$13 B-52 PHRN-1014 1" Horn 10" x 14" Bolt-On waveguide
Model: PHRN-1014|Part # 299-2303

===
The BMF1 speaker custom-built by Tweek Geeks has received high praise in public shows. The use of two-sealed, near-floor, side-side, counter-force, DSP-controlled woofers provides deep-bass in a medium size cabinet. The Tweek Geeks website has several construction pictures.

I have a pair of AES TD15S woofers mounted side-side in a rough-build sealed bass cabinet. Equalized bi-amping produces deep bass with no vibration. The 12" Dayton RSS315HF-4 woofer at $140 would be a good choice for deep bass.
 

Attachments

  • Bi-Amp sketch.jpg
    Bi-Amp sketch.jpg
    256.7 KB · Views: 710
I have the Faital 12PR300 crossed BW3/BW3 at 1,300Hz to the Faital HF108 1" CD mounted on the PartsExpress B52 horn. Very pleased with the sound with either passive or active crossovers.

$13 B-52 PHRN-1014 1" Horn 10" x 14" Bolt-On waveguide
Model: PHRN-1014|Part # 299-2303

===
The BMF1 speaker custom-built by Tweek Geeks has received high praise in public shows. The use of two-sealed, near-floor, side-side, counter-force, DSP-controlled woofers provides deep-bass in a medium size cabinet. The Tweek Geeks website has several construction pictures.

I have a pair of AES TD15S woofers mounted side-side in a rough-build sealed bass cabinet. Equalized bi-amping produces deep bass with no vibration. The 12" Dayton RSS315HF-4 woofer at $140 would be a good choice for deep bass.

@LineSource, hi. Would you be willing to share more details on this design. Crossover etc.

Much appreciated
 
Are there polars somewhere? From the looks of it, the Faital plays high enough & the 18sound low-enough to be a slave to whatever the polars say. I predict a good chance at a successful project if the drivers sound meets your approval 🙂

I have only been able to find the polars of the XT1464 horn. The horn seems to be well designed, however, still quite narrow horisontal.

Thanks!

Eighteen Sound - Professional loudspeakers
 
I just ordered some 12PR320 to use in this configuration, sealed cabinets. I've used the 12PR300 in the past and it's nice crossed over at 1300hz, but that is to a 90 deg horn. You can cross the Faitals at perhaps 1500-1700hz to match the narrow pattern but you'd want to get some good polars to determine exactly where. The great thing about these Faital PR woofers is that they are so flat and clean even an octave above these XO points, and it makes the design so much simpler. And they just sound great.

BTW I have a pair of HF108 for sale in the swap meet forum. I decided to go with the HF10AK because it matches my horn throat a little better. But I would definitely look for a polymer diaphragm in any case, I think it makes a difference.

edit: just realized you are looking at 1.4" horns. In that case maybe look at the Faital 15" woofers and cross lower to match directivity.

Cool! Are you using them for a home-theatre application with subs since you are choosing to run them in sealed boxes?


All,
I have been looking at the RCF HF950 as an alternative to the XT1496 in order to achieve a wider pattern (it's a 90 degree horisontal) and to cross lower (800-1000 Hz).

My idea was to build some Klipsch Heresy style cabinets as I like the old-school look and the speakers will be placed in front of a nice view of the forrest.

Many thanks for your comments - much appreciated 🙂
 
Cool! Are you using them for a home-theatre application with subs since you are choosing to run them in sealed boxes?

I use them at home mostly for music and also truck them around for light PA at local DJ dance parties. Even the sealed 12PR300 with 5mm of Xmax have enough low end to cross to a subwoofer at 100hz at max levels limited by the 1" compression driver and its amplifier, which is somewhere in the ballpark of 120db/1m. I power these mains with the Hypex Fusion FA253. The 12PR320 with 7+mm Xmax should let me comfortably XO at 80hz. Sub is also sealed, Dayton Ultimaxx 18" and it is really for music, down to 30hz at the lowest, not HT LFE stuff. My room isn't huge either.

I've built similar systems with vented subs and woofs, and while they are louder, the sealed cabinets just sound better for critical listening at home. And they are loud enough for a great party too. I built this thinking it was a "starter system" but ended up realizing it was pretty darn good, especially for the size and $$$, but you gotta put the time and effort into measurements and filter optimization to get the best results. DSP helps a lot.
 
  • Like
Reactions: bobdebouwer