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New Beyma 18LEX1600nd driver
New Beyma 18LEX1600nd driver
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Old 11th April 2017, 06:19 AM   #1
MrKlinky is offline MrKlinky  United Kingdom
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Default New Beyma 18LEX1600nd driver

Hi All,

This looks nice, both in appearance and specification:


PL&S
2017 – Beyma | LightSoundJournal.com


THIS SPEAKER IS A TRIBUTE TO THE CITY OF BARCELONA | Beyma Newsletters

LOW & MID FREQUENCY 18LEX1600Nd | Beyma


The BIG question - how much will it cost? I'm thinking it will be approaching £450.00GBP...

Cheers, Carl.
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Old 11th April 2017, 08:17 AM   #2
chris661 is offline chris661  United Kingdom
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Neat.

Looks like Beyma's response to drivers like the B&C 18SW115. Likely priced similar, or maybe a little under to play catch up?

Chris
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Old 11th April 2017, 09:33 AM   #3
Circlomanen is offline Circlomanen  Sweden
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B&C Speakers

B&C has released the 18DS115.

A low Qts of 0.20 and a healthy Bl of 39.

Not far from a 8 ohm version of the mighty 18IPAL.
Perfect for front loaded horns, ROAR18 and similar designs.

The Beyma 18LEX1600Nd lacks Bl for any other use then open baffle or bass reflex. Are they Bl-phobic at Beyma?
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Old 11th April 2017, 05:26 PM   #4
Josh Ricci is offline Josh Ricci  United States
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Quote:
Originally Posted by Circlomanen View Post
B&C Speakers

B&C has released the 18DS115.

A low Qts of 0.20 and a healthy Bl of 39.

Not far from a 8 ohm version of the mighty 18IPAL.
Perfect for front loaded horns, ROAR18 and similar designs.

The Beyma 18LEX1600Nd lacks Bl for any other use then open baffle or bass reflex. Are they Bl-phobic at Beyma?
I really like the direction of the new B&C woofers. The efficiency on these is exceptional and is coupled with a legitimate 15mm of excursion. The 8ohm has a normalized motor strength of 305 and the 4ohm is even higher at 350.

The Beyma linked is a completely different type of woofer. More old school. A little less geometric xmax and a normalized motor strength of only 97? I don't understand the use of NdFeb in the motor if it isn't utilized to generate a stronger field in the gap?
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Old 12th April 2017, 11:37 AM   #5
Zero D is offline Zero D  United Kingdom
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Lightbulb Beyma 18LEX1600ND v B&C 18DS115

Reflex box = 150L - fb = 42Hz - 24dB LR HPF @ 25HZ - Xmax not exceeded

Swings & roundabouts, as usual Both seem good though ! Price will probably win
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Old 12th April 2017, 02:26 PM   #6
Rademakers is offline Rademakers  Netherlands
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Quote:
I don't understand the use of NdFeb in the motor if it isn't utilized to generate a stronger field in the gap?
Wait till you have to lift the driver

18" drivers with neodymium magnets are often about half the weight of their ferrite counterparts, meaning about 10 kg/ 22 lbs. less to worry about.
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Old 12th April 2017, 02:28 PM   #7
KSTR is offline KSTR  Germany
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Beyma designers sure had a bunch of very good reasons to spec this driver just the way they did.
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Old 12th April 2017, 11:41 PM   #8
ErnieM is offline ErnieM  United States
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Quote:
Originally Posted by Zero D View Post
Reflex box = 150L - fb = 42Hz - 24dB LR HPF @ 25HZ - Xmax not exceeded

Swings & roundabouts, as usual Both seem good though ! Price will probably win
Where does the efficiency show up for the 18DS115? I would've expected it to be more sensitive above 100hz than an 18SW118.
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Old 13th April 2017, 07:19 AM   #9
Zero D is offline Zero D  United Kingdom
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Quote:
Originally Posted by ErnieM

Where does the efficiency show up for the 18DS115?
It doesn't !
Quote:
I would've expected it to be more sensitive above 100hz than an 18SW118.
So would a lot of people, i expect, & not just with this driver. BL is NOT everything, as many might think, or have been lead to believe !

Quoted sensitivities

Beyma 18LEX1600ND - 97 dB - B&C 18DS115 - 98.0 dB - See published graphs though !
Attached Images
File Type: png B&C 18DS115.png (32.3 KB, 325 views)
File Type: png Beyma 18LEX1600ND.png (69.9 KB, 323 views)
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Old 13th April 2017, 09:06 AM   #10
USRFobiwan is offline USRFobiwan
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New Beyma 18LEX1600nd driver
THe B&C goes down rapidly below 100HZ
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