It does pay to look around.
P.E. is huge, I've been there, done the tour, but sometimes they forget to order stuff. 
I needed some horn adapters that were forever back-ordered at P.E. so I called Eminence and they had dozens on the shelf.According to some posts I'm reading the exit angle of the NSD1095N is wider than most.
https://www.diyaudio.com/community/threads/exit-angle-of-18sound-hd1050-vs-nsd1095n.367597/
If you stick the driver on any old horn you may get only 14 degrees dispersion. The XT1086 horn is what 18 sound was advising to use with this driver before they got bought out.
From what I've read there is a proprietary phase plug used in the NSD1095 which is likely the "secret sauce" for wider dispersion than most.
Well this CD looks to be optimized for shallower WGs with higher expansion rates. Thats why I want to try some other less deep types to observe HF response at varying angles. I think the elliptical guides have an advantage over traditional WGs when it comes to off axis performance at a combination of being off axis on both planes.
I recently did a build with NSD1095N, XT1086, 10NMB420 and Hypex FA123 for amplification. The CD is very good, the nocth at 17 kHz is outside my hearing range, so it doesn't bother me. I'm using 16 Ohm version. The XT1086 rings heavily in free air, but bolting it on tightly helps. I've read people dislike the harsh sound of horn, I thought it's (partly) to this ringing, so I damped the horn with butyl mat. Here is a comparison of treated vs untreated horns. Overall I'm happy about the sound of the horn+CD combo and are guests who have heard it. The 10NMB420 requires heavy EQing to go to 60 Hz, but otherwise it's good.
I have tested a lot with the 18sound NSD1095N with different horns. I have also tested the Visaton DR45N and the 18sound NSD1480N.
You should take a look the the thread Best compression driver 2022.
If you do not need the low cut off you can try a wooden horn, it is probably doable to integrate it in the front baffle. I do not have the tools to do it on my own and found a shop in Germany here: LMH sTrak horns i have built my stereo pair with them, check out the post here:
Sonido SFR200A and 18sound NSD1095N in wooden horn
If you need a deeper cutoff you may want to check out the combination here:
18sound NSD1095N + Visaton HT21, here my measurements with the absolute SPL some dB too low to save my ears
CLIO pocket for this combination:
cumulative spectral decay
wavelet cycle decay
hope it helps, Stefano
P.S.: here the look & feel of the driver horn combination
You should take a look the the thread Best compression driver 2022.
If you do not need the low cut off you can try a wooden horn, it is probably doable to integrate it in the front baffle. I do not have the tools to do it on my own and found a shop in Germany here: LMH sTrak horns i have built my stereo pair with them, check out the post here:
Sonido SFR200A and 18sound NSD1095N in wooden horn
If you need a deeper cutoff you may want to check out the combination here:
18sound NSD1095N + Visaton HT21, here my measurements with the absolute SPL some dB too low to save my ears
CLIO pocket for this combination:
cumulative spectral decay
wavelet cycle decay
hope it helps, Stefano
P.S.: here the look & feel of the driver horn combination
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I took delivery of a pair of 18s NSD1095N yesterday. Mounted them on my ATH ST260 30deg exit angle WGs. Played them with 4th order LR 1300 Hz filters and some pre-figured EQ - it was interesting
Today I made an on axis measurement from 50 cm using REW and a Lineaudio OM-1.
I let REW do tight auto EQ and added 4 PEQs. Haven't measured that but it sound really good. Relaxed with exceptional clarity and resolution. I drive them with:
Mac Mini (Squeezeplay -> Camilla DSP) -> RME Digiface USB (toslink version) -> smsl SU-6 -> Topping L30 -> 3 out of 4 pairs in a Cat 6 cable (100/3 -> 33 ohm char imp) -> 16 ohm resistor -> NSD1095N 16 ohm (for 32 ohm total)
Yes - it is a different sound compared to many typical hifi speakers - I like it so far very much. And just a quick setup... I'm using my floor speakers for LF behind a chair...
;-D
//
Today I made an on axis measurement from 50 cm using REW and a Lineaudio OM-1.
I let REW do tight auto EQ and added 4 PEQs. Haven't measured that but it sound really good. Relaxed with exceptional clarity and resolution. I drive them with:
Mac Mini (Squeezeplay -> Camilla DSP) -> RME Digiface USB (toslink version) -> smsl SU-6 -> Topping L30 -> 3 out of 4 pairs in a Cat 6 cable (100/3 -> 33 ohm char imp) -> 16 ohm resistor -> NSD1095N 16 ohm (for 32 ohm total)
Yes - it is a different sound compared to many typical hifi speakers - I like it so far very much. And just a quick setup...
I'm using my floor speakers for LF behind a chair...;-D
//
Attachments
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Hello TNT, i like the waveguide - is the thing coming frome here?
Advanced Transition Horns by Marcel Batík
Advanced Transition Horns by Marcel Batík
Hello,
I wonder if I could try the nsd1095n and compare to my faital hf108r.
I have three way speakers so I cut at 1800hz :
At this frequency one can expect not to have the metal diaphragm problem?
Has the exit angle and horn coupling being documented ?
I have sth100.
Of course I use eq so I would boost the top end.
Regards Greg.
Description looks so good lol :
The NSD1095N 1 inch exit neodymium compression driver has been designed for situations where the highest quality is required. Equipped with proprietary phase plug architecture, the NSD1095N has been designed to give a smooth coherent wavefront at the horn entrance across the whole working frequency range. The phase plug short openings and high flare rate value assure low distortion and overall, this kind of phase plug demonstrates remarkable improvements in mid-high frequency reproduction. A further innovation in the NSD1095N is the titanium diaphragm nitrogen treatment, a proprietary technology defined as True Piston Motion - TPM technology developed after extensive research by Eighteen Sound. The coating is realized in a PVD - Physical Vapor Deposition - vacuum chamber. With its very high value of elasticity modulus (six times higher than titanium and two times higher than beryllium), the nitride thin film is capable of doubling the diaphragm overall stiffness with obvious benefits in terms of impulse response and intermodulation distortion reduction. The frequency response is then extended by 25%, showing a predictable, ideal pistonic behavior, avoiding top-end spurious resonances. An edge-wound copper-clad aluminum voice coil, wound on proprietary treated Nomex, completes the diaphragm assembly. Nomex shows a 30% higher value of tensile elongation at a working operative temperature (200°C) when compared to Kapton. Moreover, this proprietary former material is also suitable for use in high moisture content environments. The powerful neodymium magnet assembly has been designed to obtain 20KGauss in the gap giving major benefits in transient response. A copper ring on the pole piece reduces inductance above 10 kHz, improving phase and impedance linearization. The custom designed O-ring creates a tight seal between the plate and the cover assuring air chamber loading. Excellent heat dissipation and thermal exchange are guaranteed by the direct contact between the magnetic structure and the aluminum cover which leads to a lower power compression value. A special treatment has been applied to the magnet and the top and back plates of the magnetic structure making the driver more resistant to the corrosive effects of salts and oxidization.
I wonder if I could try the nsd1095n and compare to my faital hf108r.
I have three way speakers so I cut at 1800hz :
At this frequency one can expect not to have the metal diaphragm problem?
Has the exit angle and horn coupling being documented ?
I have sth100.
Of course I use eq so I would boost the top end.
Regards Greg.
Description looks so good lol :
The NSD1095N 1 inch exit neodymium compression driver has been designed for situations where the highest quality is required. Equipped with proprietary phase plug architecture, the NSD1095N has been designed to give a smooth coherent wavefront at the horn entrance across the whole working frequency range. The phase plug short openings and high flare rate value assure low distortion and overall, this kind of phase plug demonstrates remarkable improvements in mid-high frequency reproduction. A further innovation in the NSD1095N is the titanium diaphragm nitrogen treatment, a proprietary technology defined as True Piston Motion - TPM technology developed after extensive research by Eighteen Sound. The coating is realized in a PVD - Physical Vapor Deposition - vacuum chamber. With its very high value of elasticity modulus (six times higher than titanium and two times higher than beryllium), the nitride thin film is capable of doubling the diaphragm overall stiffness with obvious benefits in terms of impulse response and intermodulation distortion reduction. The frequency response is then extended by 25%, showing a predictable, ideal pistonic behavior, avoiding top-end spurious resonances. An edge-wound copper-clad aluminum voice coil, wound on proprietary treated Nomex, completes the diaphragm assembly. Nomex shows a 30% higher value of tensile elongation at a working operative temperature (200°C) when compared to Kapton. Moreover, this proprietary former material is also suitable for use in high moisture content environments. The powerful neodymium magnet assembly has been designed to obtain 20KGauss in the gap giving major benefits in transient response. A copper ring on the pole piece reduces inductance above 10 kHz, improving phase and impedance linearization. The custom designed O-ring creates a tight seal between the plate and the cover assuring air chamber loading. Excellent heat dissipation and thermal exchange are guaranteed by the direct contact between the magnetic structure and the aluminum cover which leads to a lower power compression value. A special treatment has been applied to the magnet and the top and back plates of the magnetic structure making the driver more resistant to the corrosive effects of salts and oxidization.
You could try, 1.8kHz xo can be safe for both drivers but I think metal (or other material) diaphragm problems starts at higher frequencies in the case of 1" exit CDs.
I think It would be an interesting comparison, because both drivers have good reputation but they are very different breeds (mainly due to different diaphragm materials).
I am not sure if it is worth trying, looking at audio express reviews and at the csd,
It is not like there is a clear winner.
For information I also join the csd which was kindly sent to me by beyma for the cp755nd.
It is much appreciated but not especially better...
It is not like there is a clear winner.
For information I also join the csd which was kindly sent to me by beyma for the cp755nd.
It is much appreciated but not especially better...
