Rectangular waveguides - what are they really?

NYCOne · 15th October 2011, 04:53 PM

I came across the Beyma WL-5:

http://www.lautsprechershop.de/pdf/beyma/beyma_wl5.pdf

and the BMS 4510ND

http://bmsspeakers.com/fileadmin/bms...0nd_curves.jpg

I realize these are designed for stage line arrays, but with such coverage at the various angles, wouldn't these make great home drivers?

If so, they all refer to 4"x1" waveguides or horns. What are such beasts? I have not been able to find an example. Are they simply 90 degree boards used as waveguides?

gedlee · 16th October 2011, 01:49 PM

The waveguides for these devices are usually custom and part of the actual enclosure with the Mid range divers built into the side walls of the waveguide. I don;t know of any one who sells just the waveguides.

whgeiger · 16th October 2011, 03:37 PM

Quote:

Originally Posted by NYCOne

I came across the Beyma WL-5:

http://www.lautsprechershop.de/pdf/beyma/beyma_wl5.pdf

and the BMS 4510ND

http://bmsspeakers.com/fileadmin/bms...0nd_curves.jpg

I realize these are designed for stage line arrays, but with such coverage at the various angles, wouldn't these make great home drivers?

If so, they all refer to 4"x1" waveguides or horns. What are such beasts? I have not been able to find an example. Are they simply 90 degree boards used as waveguides?

... it is not a complete horn,
Here is the horn mouth part, Beyma TD-WL4 that receives a pair of WL-4 necked compression drivers. The WL3 and WL5 are parts for similar arrangements

WL4
http://profesional.beyma.com/ingles/pdf/WL4.pdf

TD-WL4
http://profesional.beyma.com/ingles/pdf/TDWL4.pdf

TD-WL5
TD-WL5 :: ELMUZ & BEYMA PL
Cannot find this on the Beyma web site.

Regards,

WHG

Pano · 16th October 2011, 03:46 PM

Impressive graphs on the TD-WL5. Even the distortion is down -25dB (H2) and -45dB(H3) at 110dB. Of course that's two drivers on the horn.

NYCOne · 16th October 2011, 04:53 PM

Quote:

Originally Posted by gedlee

The waveguides for these devices are usually custom and part of the actual enclosure with the Mid range divers built into the side walls of the waveguide. I don;t know of any one who sells just the waveguides.

If you have an example in a photo, I'd love to get an idea of how these are used.

Pano · 16th October 2011, 05:49 PM

They tend to be used like this: MILO

They will be stacked a few units high. You can see why they have a narrow vertical pattern.
I don't know what drivers are used in the MILO, though.

whgeiger · 16th October 2011, 07:15 PM

Quote:

Originally Posted by NYCOne

If you have an example in a photo, I'd love to get an idea of how these are used.

See

http://beyma.com.ua/downloads/LARBEYMA%20.pdf

Regards,

WHG

15th October 2011, 04:53 PM	#1
NYCOne diyAudio Member Join Date: Jul 2010 Blog Entries: 1	Rectangular waveguides - what are they really? I came across the Beyma WL-5: http://www.lautsprechershop.de/pdf/beyma/beyma_wl5.pdf and the BMS 4510ND http://bmsspeakers.com/fileadmin/bms...0nd_curves.jpg I realize these are designed for stage line arrays, but with such coverage at the various angles, wouldn't these make great home drivers? If so, they all refer to 4"x1" waveguides or horns. What are such beasts? I have not been able to find an example. Are they simply 90 degree boards used as waveguides?

16th October 2011, 01:49 PM	#2
gedlee diyAudio Member Join Date: Dec 2004 Location: Novi, Michigan	The waveguides for these devices are usually custom and part of the actual enclosure with the Mid range divers built into the side walls of the waveguide. I don;t know of any one who sells just the waveguides. __________________ Earl Geddes Gedlee Website Read about the highly acclaimed Geddes loudspeakers

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16th October 2011, 03:46 PM	#4
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	Impressive graphs on the TD-WL5. Even the distortion is down -25dB (H2) and -45dB(H3) at 110dB. Of course that's two drivers on the horn.

16th October 2011, 05:49 PM	#6
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	They tend to be used like this: MILO They will be stacked a few units high. You can see why they have a narrow vertical pattern. I don't know what drivers are used in the MILO, though.

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