Wow, have you guys seen this: ND4015BE - HF Neodymium Driver ?
4" Be diaphragm! I have the strong feeling that when that day when I'll build my speakers, I'll use 18Sound drivers.
It would need some Eq, that's for sure, but 600Hz to 20Khz seems now possible. Is it me or I see some resonances in the impedance curve?
4" Be diaphragm! I have the strong feeling that when that day when I'll build my speakers, I'll use 18Sound drivers.
An externally hosted image should be here but it was not working when we last tested it.
It would need some Eq, that's for sure, but 600Hz to 20Khz seems now possible. Is it me or I see some resonances in the impedance curve?
An externally hosted image should be here but it was not working when we last tested it.
I wonder if these diaphragms come from truextent or not.
Even JBL sources its bare diaphragms from truextent (and add its own voice coil).
The impedance of this 18sound sure looks nice, with no rise in the UHF (that said, rising impedance is not a problem at all with active crossovers...)
Even JBL sources its bare diaphragms from truextent (and add its own voice coil).
The impedance of this 18sound sure looks nice, with no rise in the UHF (that said, rising impedance is not a problem at all with active crossovers...)
I had jbl2450sl with Truextent before and Now i bought a brand new pair 18sound nd4015be.
This is my initial measurements. I use high pass 400 Hz 48 dB in the active crossover under the measurements and always a 47 uF capasitor for protection.
Imgur: The magic of the Internet
Imgur: The magic of the Internet
Imgur: The magic of the Internet
This is my initial measurements. I use high pass 400 Hz 48 dB in the active crossover under the measurements and always a 47 uF capasitor for protection.
Imgur: The magic of the Internet
Imgur: The magic of the Internet
Imgur: The magic of the Internet
Vance Dickason has tested that one:
http://www.eighteensound.com/Portals/0/Download/VoiceCoil_Feb2014_ND4015BE_low.pdf
Much cheaper but seemingly also very nice from the measurement data is the following one, if one can live with 1.4" and a crossover frequency of 1 kHz:
Test Bench: Eighteen Sound ND3ST 1.4” Compression Driver | audioXpress
Regards
Charles
http://www.eighteensound.com/Portals/0/Download/VoiceCoil_Feb2014_ND4015BE_low.pdf
Much cheaper but seemingly also very nice from the measurement data is the following one, if one can live with 1.4" and a crossover frequency of 1 kHz:
Test Bench: Eighteen Sound ND3ST 1.4” Compression Driver | audioXpress
Regards
Charles
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