BMS 4524 Overview
Used in ZERO 1 XD - Avantgarde Acoustic Hornloudspeaker
Very good CD for the money! I liked it a lot..
Used in ZERO 1 XD - Avantgarde Acoustic Hornloudspeaker
Very good CD for the money! I liked it a lot..
My experience is exactly the opposite. I haven't heard a decent dome in ages, compared to good CDs. Better dispersion control with CDs too.
huh, I was hoping to get away with one build, it does not worth it to order the cabs and then realize if we need to change something, I will wait until I get the drivers and start measuring then 🙂
that is interesting but unfortunately can't find a dealer here in US or a dealer that ships to US w reasonable price.
i came across this tho : 1 Paar Tractrix Holzhörner.
huh so that was my experience then, some CDs have been mentioned here before some JBLs if i remember, I wonder what other guys think ?
I still think the Morel CAT378 is a good choice but I m totally open if we go with CD as well, if I remember correctly JBL Selenium D220Ti was also mentioned before, good curves and good price! horn for mentioned CD : Selenium HM17-25, this one is interesting Dayton Audio H08RW 8" Round Waveguide 1-3/8"-18 TPI it is a 8" waveguide for CD and it is 8", it looks good with 8" midrange 😀 😀
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Some of us have high expectations for this design. 🙂
General nitpicking, fiddling with various details, followed by further tweaking is to be expected.
Faital HF10AK best tweeter period for a 3 way, it is clean airy and sweet! I think the horn is the ST100 that i used.
Also see here for inspiration: The-Loudspeaker. Have seen several positive posts about that particular waveguide, although I believe that matching the exit angle of the CD to the throat angle of the waveguide/horn is fairly important, so a complimentary pairing needs to be chosen. (note: not an expert here)
Those Ketone polymer diaphragm CD's are getting quite the reputation. The xo will be easier too, more flexible transition points. And you'll never be close to tickling the max power rating.
If a little controlled directivity is good.... with an 18" wide cabinet a larger horn with controlled directivity over a wider frequency range is better.
THIS IS THE SURVEY'S HORN DESIGN PHILOSOPHY
Is this team switching to a CD + horn design?
http://www.gedlee.com/Papers/directivity.pdf
Earl Geddes --- "12" midwoofer + 15" OS waveguide is best sounding SUMMA speaker"---
$225 = Faital HF10AK 1" exit compression driver with 1.73" diaphragm
----------------
$63 = Peerless DFM-2544R00-08 1" exit compression driver with 1.75" diaphragm
$13 = B-52 PHRN-1014 1" Horn 10" x 14" Bolt-On waveguide
Model: PHRN-1014|Part # 299-2303
$188 = Eminence KappaLite 3012HO Midrange
XXX = YYY woofer
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THIS IS THE SURVEY'S HORN DESIGN PHILOSOPHY
Is this team switching to a CD + horn design?
http://www.gedlee.com/Papers/directivity.pdf
Earl Geddes --- "12" midwoofer + 15" OS waveguide is best sounding SUMMA speaker"---
$225 = Faital HF10AK 1" exit compression driver with 1.73" diaphragm
----------------
$63 = Peerless DFM-2544R00-08 1" exit compression driver with 1.75" diaphragm
$13 = B-52 PHRN-1014 1" Horn 10" x 14" Bolt-On waveguide
Model: PHRN-1014|Part # 299-2303
$188 = Eminence KappaLite 3012HO Midrange
XXX = YYY woofer
-------------
Ok I have some good news.
pcgab generously offered to provide us with the prototype cabinet 🙂 that is pretty amazing, thanks man.
pcgab generously offered to provide us with the prototype cabinet 🙂 that is pretty amazing, thanks man.
Looks like CDs subject raised some interests here.
I did some research about the CDs, BMS has very good reputation but unfortunately not much available around U.S.
Selenium D220Ti is also well known, Faital Pro HF10AK is pretty damn good driver but personally it is way out of my price range, after AE drivers I pretty much pushed it and still have to purchase the crossover parts and cabinets.
Also read good things about Peerless DFM-2544R00-08.
I did some research about the CDs, BMS has very good reputation but unfortunately not much available around U.S.
Selenium D220Ti is also well known, Faital Pro HF10AK is pretty damn good driver but personally it is way out of my price range, after AE drivers I pretty much pushed it and still have to purchase the crossover parts and cabinets.
Also read good things about Peerless DFM-2544R00-08.
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A very nice combo indeed! We could perhaps test some less expensive substitutions for the CD.
B&C DE250 ~$107 USD*
Celestion CDX1-1445 ~$45 USD**
Others.....
Coupled with a SEOS 10, or 12, which are ~$23, and ~$28 USD, respectively. *** There may be some better options out there. These are just the first things I thought of.
* B&C DE250-8 1" Polyimide Horn Driver 8 Ohm 2/3-Bolt
** Celestion CDX1-1445 Ferrite 1" Compression Driver 20W
*** SEOS™ Waveguides
I don't trust anyone who wears a cap indoors! XT1086 horn is a classic. A 1" throat driver is optimal for a 3-way. This new Peerless should be really good up from 2kHz.
Peerless by Tymphany DFM-2535R00-08 Compression Driver | audioXpress
or
Test Bench: Peerless by Tymphany DFM-2544R00-08 Compression Driver | audioXpress
"The DFM-2544R00-08 is driven by 44.4 mm diameter voice coil wound with aluminum wire on a Til film non-conducting former. Other features include a ferrite ring magnet motor structure, nominal 60 W rated power handling (50 W continuous), an injection-molded black heatsink, and solderable terminals. I should also note that the titanium diaphragm is coated with a light,thin layer of unique damping material giving the driver, according to the company, an unusually smooth sound at high SPLs. All of the materials resist environmental factors of heat, vibration, and aging and is purported to ensure many years of stable performance."
41$ at PE Peerless by Tymphany DFM-2535R00-08 1" Compression Horn Driver 2/4-Bolt 8 Ohm
63$ at PE Peerless by Tymphany DFM-2544R00-08 1" Compression DFM Driver 8 Ohm
Peerless by Tymphany DFM-2535R00-08 Compression Driver | audioXpress
or
Test Bench: Peerless by Tymphany DFM-2544R00-08 Compression Driver | audioXpress
"The DFM-2544R00-08 is driven by 44.4 mm diameter voice coil wound with aluminum wire on a Til film non-conducting former. Other features include a ferrite ring magnet motor structure, nominal 60 W rated power handling (50 W continuous), an injection-molded black heatsink, and solderable terminals. I should also note that the titanium diaphragm is coated with a light,thin layer of unique damping material giving the driver, according to the company, an unusually smooth sound at high SPLs. All of the materials resist environmental factors of heat, vibration, and aging and is purported to ensure many years of stable performance."
41$ at PE Peerless by Tymphany DFM-2535R00-08 1" Compression Horn Driver 2/4-Bolt 8 Ohm
63$ at PE Peerless by Tymphany DFM-2544R00-08 1" Compression DFM Driver 8 Ohm
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