I can send with wetransfer if I have an email address or can mms if I have a phone number
First trials of active horn speaker
- Thread starter morricab
- Start date
18Sound NDS1480N. Neodymium motor, nitride-coated titanium diaphragm. It's a custom studio monitor.
Excellent question.
The 18Sound ND4014BE won't give me an honest 20kHz top end; I'd either have to add a tweeter or bring down the system efficiency more than I want to.
Also it has a 1.5" throat, which severely limits off-the-shelf horn choices.
It does look very good.
The thing I like about the Titanium Nitride-coated diaphragm that 18Sound uses in the NDS1480N is its apparent freedom from breakup in the top octave, arguably coming pretty close to Beryllium in that respect. Titanium Nitride is a ceramic.
Duke
Here's some info which Jean-Michel presented at the ETF -
sorry the file is too large so here is a link to it: http://www.rintelen.ch/download/JMMLC_horns_lecture_etf10.pdf
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Thats what I suggested, believe me you should try out an XO around 1200Hz.
Can you provide measurements of the setup (measured at listening position): first direct axis and then with 30° of axis. Interesting would be as well measuring of the horn in 1m distance.
Question: what crossover you are using now, DSP ore analoge?
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Like Bonzo suggested I'd prefer a phenolic diaphragm as well becaus voices sound more natural.
I thought Bonzo suggested a Beryllium diaphragm? Maybe I missed something.
The Beyma uses a Ti diaphragm but with a Mylar surround as the thinking is that the suspension is causing a lot of the breakup. It is super smooth and clean in the highs.
It is actually sounding super smooth now at 1khz.
I am using dsp with a 2nd order LR and mild EQ (small lift above 7khz). However, the dsp is dig in dig out so I have two external DACs and two small tube amps.
Very nice!
My most successful home audio speaker (in terms of sales volume) used a Beyma, the CP385Nd. Chosen after purchasing and evaluating thirteen competing 1" throat compression drivers. I have a lot of respect for Beyma.
The driver I am using on the Iwatas is an old CP350TI, which is the predecessor of the CP380m. It has a pure Ti diaphragm but no appreciable breakup. I have it also in my old Odeon La Bohemes, which have such a nice treble that I had to find a pair for my projects. So far, it hasn’t disappointed but the little XT120 was not allowing it to really strut its stuff. The La Bohemes have a 10 inch round Tractrix or Spherical (not sure which) horn from solid wood. I looked at the 18 sound drivers but didn’t find them to have very flat responses, which makes designing more of a challenge. Both Beyma drivers need very little help.
That looks like a great driver too but I am not a huge fan of the plastic diaphragms. They can be smoother but lose some realism somehow...don’t know why it’s just what I hear. This is why the Live Act Audio speaker’s with Coaxial Radian drivers and Be diaphragms are so interesting because they also sounded very lifelike. I will be getting some Radian 475pb Be to compare to the Beyma...that should also be interesting.
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