1. Better low frequency capability (650Hz minimum crossover vs. 900Hz)
2. More output at 20kHz
3. Less breakup issues
4. Better power handling
Because they have enough money to pay them, and it will not be satisfying enough if the financial sacrifice is not painful ?
Plastics from China are probably ok for diy, but bare in mind; even the Chinese import components from Italy if they want REAL quality.
Parts inside these drivers are mainly from China, but it's all about production quality and control.
Below, imported original RCF parts and a 2-way from a Chinese RCF partner.
Parts inside these drivers are mainly from China, but it's all about production quality and control.
Below, imported original RCF parts and a 2-way from a Chinese RCF partner.
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Thanks. I had a 3 way using this wonderful QSC waveguide QSC PL-000446-GP - drivervault with a BMS 4540 nd 1" driver - excellent on and off axis response and past 20 kHz, not that I could hear 🙂
But gone to a 2 way (with subs) and I like 15" drivers, so... I had a look at the Klipsch kpt-402 waveguide and someone sent me polars - so far it seems hard to beat if looking for a constant directivity horn down to 600 Hz...
I've been tinkering about a very solid, modular and large MEH > about 2 Meters Width, 1.50-1.75 Meters Height and 1 Meter Depth.
Mount an ND950 + 2 x 15", or even 2 x 18" crossed at 350-400Hz, reflex load it on each side and you'll theoretically - and conservatively estimated - have pattern control from about 100-150Hz and 25/30Hz-20kHz bandwidth in a 2-way, 98-100dB point-source. Without all the complexity of a Synergy.
I bet this would beat any big Synergy I've listened to, in terms of sound quality.
Obviously, it wouldn't nearly go as loud, but loud enough for even the biggest living rooms.
This cannot be realized by using OS or similar waveguide profiles however. You'll need to design a kind of duct transition at the throat, this could be a gradual round to rectangual transition or an "inversed hyperboloid micro-waveguide".
Don't let me be misunderstood: I am a huge fan of Tom Danley.
He is one of the biggest all-time contributors to the diy community, a smart and very nice person as well.
I have never listend to the smaller Coax-loaded Synergy Horns. I am sure these are the most hi-fi sounding. Why? Due to their simplicity.
Mount an ND950 + 2 x 15", or even 2 x 18" crossed at 350-400Hz, reflex load it on each side and you'll theoretically - and conservatively estimated - have pattern control from about 100-150Hz and 25/30Hz-20kHz bandwidth in a 2-way, 98-100dB point-source. Without all the complexity of a Synergy.
I bet this would beat any big Synergy I've listened to, in terms of sound quality.
Obviously, it wouldn't nearly go as loud, but loud enough for even the biggest living rooms.
This cannot be realized by using OS or similar waveguide profiles however. You'll need to design a kind of duct transition at the throat, this could be a gradual round to rectangual transition or an "inversed hyperboloid micro-waveguide".
Don't let me be misunderstood: I am a huge fan of Tom Danley.
He is one of the biggest all-time contributors to the diy community, a smart and very nice person as well.
I have never listend to the smaller Coax-loaded Synergy Horns. I am sure these are the most hi-fi sounding. Why? Due to their simplicity.
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On second thought, the upper horn more closely resembles a Yoshimura Laboratory (YL Acoustic) MB-70.
Imagine, a European company cloning a Japanese product in a period when the Japanese were often accused of shamelessly copying/cloning "inventions of the Western world".
Which, as we know were false arguments in a common fear of loosing our economic hegemony.
Imagine, a European company cloning a Japanese product in a period when the Japanese were often accused of shamelessly copying/cloning "inventions of the Western world".
Which, as we know were false arguments in a common fear of loosing our economic hegemony.
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After all...
NAMM 2019
Celestion debuted its Axi2050 Axiperiodic Driver, a high-output MF/HF driver that offers ultra wideband (300Hz to 20kHz) that can eliminate the need for a midband crossover. The result of five years research, it’s a single, large-diameter, sculpted, annular diaphragm consisting of many curved, axiperiodically symmetrical elements that adds immense strength to a very thin and light sheet of titanium. Specs include a 2” exit throat, standard mounting and 150W RMS power handling for 140 dB max SPLs.
NAMM 2019
Celestion debuted its Axi2050 Axiperiodic Driver, a high-output MF/HF driver that offers ultra wideband (300Hz to 20kHz) that can eliminate the need for a midband crossover. The result of five years research, it’s a single, large-diameter, sculpted, annular diaphragm consisting of many curved, axiperiodically symmetrical elements that adds immense strength to a very thin and light sheet of titanium. Specs include a 2” exit throat, standard mounting and 150W RMS power handling for 140 dB max SPLs.
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Thanks Rob re: K402... Like the news on the Celestion driver. Looking at the spec sheet says OEM only... Love that red waveguide 🙂
RCF BM-D750???
Do you mean that Paudio have copied RCF ? i'm shocked... why not copy JBL instead !
I'm not against RCF but i've bought a pair of relatively expensive woofers and the gasket was glued on the fixing holes
Oups...😡
Celestion drivers always impressed me on the build quality and their consistency, despite they are made in china.
when they remove the :OEM only" we'll know they've finally figured out how to make it in volume