Hello all!
There is a new small Beyma coaxial that aims more at wide frequency range than on high sensitivity and so is suitable for compact hifi solutions.
http://profesional.beyma.com/ingles/pdf/6CX200Nd_tec.pdf
The 65 Hz Fs and the strong motor seemed to be ideal for a ML-pipe, so I did a simulation with an old MJK sheet. Cross-section over the whole length was 2xSd, length 132 cm (quarter wavelength of Fs), port dimensions didn´t seem so critical.
Looks like a true fullrange solution, and that with a high-WAF slim coloumn.
Opinions?
There is a new small Beyma coaxial that aims more at wide frequency range than on high sensitivity and so is suitable for compact hifi solutions.
http://profesional.beyma.com/ingles/pdf/6CX200Nd_tec.pdf
The 65 Hz Fs and the strong motor seemed to be ideal for a ML-pipe, so I did a simulation with an old MJK sheet. Cross-section over the whole length was 2xSd, length 132 cm (quarter wavelength of Fs), port dimensions didn´t seem so critical.
Looks like a true fullrange solution, and that with a high-WAF slim coloumn.
Opinions?
Attachments
Cool. Anyone in the US carrying these yet? On a related note, any other decent high-ish efficiency 6.5" coaxes available?
Interesting driver.
The off axis response looks superb, if the plot can be believed. Wonder how they crossed it to get that?
Not going to be cheap, one would think.....
The off axis response looks superb, if the plot can be believed. Wonder how they crossed it to get that?
Not going to be cheap, one would think.....
Oooooo
I've always thought that a coax should have a relatively long horn for the tweeter, to eliminate the (moving) cone loading the tweeter output.
I've always thought that a coax should have a relatively long horn for the tweeter, to eliminate the (moving) cone loading the tweeter output.
panomaniac said:
You can believe Beyma's plots... I've been working with Beyma units, and it's awesome.
On a side note also file this interesting one, on the same tecnologie (n/coax).
Beyma 6P200Nd
http://profesional.beyma.com/ingles/pdf/6P200Nd.pdf
Price 90.00 euro no/tax.
Price for BEYMA 6CX200Nd COAXIAL TRANSDUCER is about 148.00 euro.
Beyma 6P200Nd
http://profesional.beyma.com/ingles/pdf/6P200Nd.pdf
Price 90.00 euro no/tax.
Price for BEYMA 6CX200Nd COAXIAL TRANSDUCER is about 148.00 euro.
I've made a pair of prototypes:
.
After x-over and eq and stuffed port
.
Step resp
.
on-off/axis
.
Slopes
.
Glorified Hi-Fi curve
Retail price is 220 EURO.
Sound is excellent. Amazing low end respons. It's a bit tricky to get flat and smooth sounding. But Beyma's original curve's are pretty fair.
Highly recommended
.
After x-over and eq and stuffed port
.
Step resp
.
on-off/axis
.
Slopes
.
Glorified Hi-Fi curve
Retail price is 220 EURO.
Sound is excellent. Amazing low end respons. It's a bit tricky to get flat and smooth sounding. But Beyma's original curve's are pretty fair.
Highly recommended
Lindell said:I've made a pair of prototypes:
Retail price is 220 EURO.
Sound is excellent. Amazing low end respons. It's a bit tricky to get flat and smooth sounding. But Beyma's original curve's are pretty fair.
Highly recommended
I'd be more interested in seeing the curves without the EQ, and without a brickwall digital filter....
Sweet!
I emailed Beyma to ask what they did inthe way of x-over to get such good results. Let's see if they answer.
What did yo do for your cross?
I emailed Beyma to ask what they did inthe way of x-over to get such good results. Let's see if they answer.
What did yo do for your cross?
Bringing this post back from the dead to see if there have been any others using these Beyma drivers (6CX200Nd).
Thanks
Thanks
I've made a pair of prototypes:
..............
Sound is excellent. Amazing low end respons. It's a bit tricky to get flat and smooth sounding. But Beyma's original curve's are pretty fair.
Highly recommended
Are there any information about how you get that bas response out of that driver.
Transmission-line, vented or … ?
Cabinet info, please. 🙂
I recently started using its larger brother the 8cx300nd and I can assure that it sounds very fine after some equing.
Regards
Charles
Regards
Charles
Manger
Sorry for the OT:, but...
Charles, I hope you haven't given up on the Manger! If so - why? (Have several drivers that have good low-end response extending up to 500 Hz. or even 1kHz., so if it's the low/mid response of the Manger - I can simply cross at 200 - 500 Hz., using steep linear-phase slopes).
much thanks,
-Tal
Sorry for the OT:, but...
Charles, I hope you haven't given up on the Manger! If so - why? (Have several drivers that have good low-end response extending up to 500 Hz. or even 1kHz., so if it's the low/mid response of the Manger - I can simply cross at 200 - 500 Hz., using steep linear-phase slopes).
much thanks,
-Tal
I've made a pair of prototypes:
.
After x-over and eq and stuffed port
.
Step resp
.
on-off/axis
.
Slopes
.
Glorified Hi-Fi curve
Retail price is 220 EURO.
Sound is excellent. Amazing low end respons. It's a bit tricky to get flat and smooth sounding. But Beyma's original curve's are pretty fair.
Highly recommended
I'm highly interested in building a pair of these to me! Could you please share the details of how many liters the enclosure has and the dimensions of the air duct? Thanks buddy! 😉
No - I haven't given up on the Manger. I just like to try different things once in a while.
Regards
Charles
Regards
Charles
I have been looking at this driver myself, but haven’t done anything other than thinking about the project, yet. Please, more info. Drawings, schematics, anything 🙂
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