Beyma CP350/Ti

Swedish Chef · 30th June 2004, 07:22 PM

I have heard rave comments about this driver but never got the chance to listen to it myself. Has anyone experience with it? How would you describe the sound compared to say the JBL2426 or B&C DE25?
I am considering it for my next speaker project between say 2-9 kHz.

TIA

/Magnus

Ken L · 1st July 2004, 02:14 AM

some food for thought _grin_

I think what will do best will be determined a good bit by the type of horn you wish to use with the driver _grin_

Beyma is somewhat hard to find in the US at other than full retail. so there aren't that many around.

The beyma CP350/ti appears to have a wider dispersion angle type of throat, the same as a CP385ND - the newer pancake style of drivers.

This short throat "pancake" style can be used without beaming in a horn that has wider dispersion than a tractix type of horn

The older TAD style and JBL style with a longer, narrower initial throat will beam in a round horn with wider dispersion than tractix - The Radial and Bi radial horns apparently correct for this -

FWIW, I initally learned of this aspect from the shop manager for DDS horns - since confirmed on JBL pro site.

He informed me that he used the Beyma CP385ND on his 1" DDS ENG90-1 Pro horns in his own configuration and believed they were the best he had heard for use in a round wide dispersion horn. I'm not sure if hea had heard a CP350/Ti or even if they were on the market at that time.

I looked for some time for a pair of the CP385ND's either used or discounted and finally bought a pair of used Radians.

Depending on your personal taste _grin_ you might prefer the sound of polyester diaphragms over titanium _bigger grin_

Hopefully someone else will post to the thread that has _heard_ them.

Regards

Ken L

Swedish Chef · 20th July 2004, 12:44 PM

Thanx Ken!

Trying to bring up this thread again. Has NOBODY out there used this driver?

About the horn I am thinking of a wooden tractrix or maybe an exponential. I will use the JBL2405/077 slot driver above 10 k.

/Magnus

Coolin · 21st July 2004, 08:25 PM

Ideally you would also want to match the driver "initial angle" to the starting angle of the horn.
I havent seen anything mentioned by the manufacturers about this. Is there some other way to find out about these angles besides phisically handling them?
I suppose you could geusstimate by looking at their recommended horns.

Regards.

30th June 2004, 07:22 PM	#1
Swedish Chef diyAudio Member Join Date: Jun 2004 Location: Stockholm	Beyma CP350/Ti I have heard rave comments about this driver but never got the chance to listen to it myself. Has anyone experience with it? How would you describe the sound compared to say the JBL2426 or B&C DE25? I am considering it for my next speaker project between say 2-9 kHz. TIA /Magnus

1st July 2004, 02:14 AM	#2
Ken L diyAudio Member Join Date: Sep 2002 Location: deep south	haven't heard any of these and have zero knowledge of the B&C some food for thought _grin_ I think what will do best will be determined a good bit by the type of horn you wish to use with the driver _grin_ Beyma is somewhat hard to find in the US at other than full retail. so there aren't that many around. The beyma CP350/ti appears to have a wider dispersion angle type of throat, the same as a CP385ND - the newer pancake style of drivers. This short throat "pancake" style can be used without beaming in a horn that has wider dispersion than a tractix type of horn The older TAD style and JBL style with a longer, narrower initial throat will beam in a round horn with wider dispersion than tractix - The Radial and Bi radial horns apparently correct for this - FWIW, I initally learned of this aspect from the shop manager for DDS horns - since confirmed on JBL pro site. He informed me that he used the Beyma CP385ND on his 1" DDS ENG90-1 Pro horns in his own configuration and believed they were the best he had heard for use in a round wide dispersion horn. I'm not sure if hea had heard a CP350/Ti or even if they were on the market at that time. I looked for some time for a pair of the CP385ND's either used or discounted and finally bought a pair of used Radians. Depending on your personal taste _grin_ you might prefer the sound of polyester diaphragms over titanium _bigger grin_ Hopefully someone else will post to the thread that has _heard_ them. Regards Ken L __________________ No longer powered by Linux - not enough apps and cross platform integration - but maybe one day

20th July 2004, 12:44 PM	#3
Swedish Chef diyAudio Member Join Date: Jun 2004 Location: Stockholm	Thanx Ken! Trying to bring up this thread again. Has NOBODY out there used this driver? About the horn I am thinking of a wooden tractrix or maybe an exponential. I will use the JBL2405/077 slot driver above 10 k. /Magnus __________________ "Knowing what to do but not why is no use in a changing world" - The Art of Sound Reproduction

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21st July 2004, 08:25 PM	#4
Coolin diyAudio Member Join Date: Apr 2003 Location: Holland	Ideally you would also want to match the driver "initial angle" to the starting angle of the horn. I havent seen anything mentioned by the manufacturers about this. Is there some other way to find out about these angles besides phisically handling them? I suppose you could geusstimate by looking at their recommended horns. Regards.

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