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RCF ND950 1.4

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smitske96 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Topic: RCF ND950 1.4
    Posted: 06 March 2018 at 3:22pm
Does anyone have experience with them? I'm currently looking for a new high driver. 
Other option is the BMS 4594 but it's more expensive (almost 700,- a pair Shocked)

Horn would be the HF950.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 10:24am
No one?
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Sound Chippy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Sound Chippy Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 12:37pm
hi I got a couple of BMS 4594 he and listened to them thru the 18 sound jobbies and i felt like they didnt disperse the sound that well . quite narrow dispersion .. so i boaght a pair of RCF 950 ... sounded fantastic ... much wider coverage . filled the dance floor nicely ...considering it was only one on left and right . thats all i can contribute on the topic , unfortunatly . all the best sure someone has more 1st hand experiance with what info your seeking . all the best Dave
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smitske96 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 1:26pm
I know the BMS is one hell of a driver, but i'm looking at some other (probably a bit cheaper) alternatives.
B&C have some new 1.4" models with a lower cutt-off but not low enough.

RCF uses the ND950 from 650 Hz in there TT5A cabninet.
I've read that the TT2A is a nice box, but the VHF is not that good like the BMS coax.
Knowing that the TT2A doesn't use the ND950 but the ND850, I still don't know anything about the ND950. 

I would like to know how precise the 950 is, and how the VHF is compared to some other drivers (knowing it uses a 4" VC)
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jo bg Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 3:32pm
Hi Smitske96
i think we follow a similar path Smile i built th18s too (4 now, but still no nice finish as yours)
and i am curious about this driver too, most information i found on peter morris diy and art syntripp threads; there is a mention in there of some german guys using it with one of those boxes.
One concern is that maybe it is cheaper for a reason... although some RCF transducers have good track records, i don't know how it fares against b&c or 18sound offerings, maybe it is built to a lower price point, you buy a 3 inch coil from those manufacturers with the same money vs the 4 inch in rcf nd950.
what's the general opinion about rcf compression drivers? 

to add more confusion and temptation used bms 4590 2" here goes for same or little less money than a new rcf nd950 1.4, problem would be the horn...

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smitske96 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 3:52pm
For me the 4590 is not a option looking at the weight, and finding a suitable horn for a compact 12" top.
At some French shop, the RCF's are 241 euros..


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Post Options Post Options   Thanks (0) Thanks(0)   Quote airbell Quote  Post ReplyReply Direct Link To This Post Posted: 18 March 2018 at 8:56pm
I did a comparison between B&C DE980TN and RCF ND950 1.4 on RCF HF950 Horn.
Have also some Arta screenshots from indoor measurement.

I liked the sound of the B&C more, although the RCF was not bad.
In the mids the RCF wins because of larger diaphragma (4" RCF vs 3" B&C)
but the overall sound with simple filters is better with the B&C.
So it depends for what you want to use it and crossover point/slope.

Both are good high quality drivers, but the RCF is still cheaper so no bad choice for sure!

I also have the BMS4595ND.
It has easily 5dB more sensivity >8kHz at 2.83V but I never did a comparison at very high levels.
The problem with the bms is that it can sound awesome with some music, but with other music it sounds not so good or kind of "wrong", while the b&c is not perfect but always good and more neutral and honest in my opinion.

Hope this could help
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bass*en*mass Quote  Post ReplyReply Direct Link To This Post Posted: 19 March 2018 at 7:23pm
http://www.audioxpress.com/article/Test-Bench-RCF-ND950-Neodymium-Compression-Driver-and-HF950-Horn

Sean Hennessey uses the hf950 and de1090tn in his PS212-90lf crossed at 700, he`s also a member on here so he might chime in to report on his thoughts.. the nd950 is used in a peter morris diy60 over here, afaik, other than some required eq they seem to work pretty well in that config crossed at about 700hz doing live RnR..
The "new" 18s nd3s should do fine crossed about 800ish too?
(..waiting for a mate to do some measurements on hf950 and n(s)d1480/nd3st.. will report back!)

bms coaxs generally do sound brighter/louder but, at least with passive xovers, tend to have issues reproducing clean/natural "t/s/z" vocals imo, have not heard them properly active crossed with FIR tbh, that might solve the "issue"..

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MarjanM View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 19 March 2018 at 11:48pm
"t/s/z" and clean is oxymoron, because on most of the titanium drivers, that sound is coming from the cone break up and distortion. But people are used to it and accept it as a norm.
Marjan Milosevic
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https://www.facebook.com/pages/MM-Acoustics/608901282527713
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Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 21 March 2018 at 9:43am
The BMS still have distortion, it's just higher up than in most other drivers. I've heard the RCF, a fair few times in fact… it's a really nice driver.
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