Just thought I would post my latest purchase I was very impressed with these especially for the price. The waveguides were purchased from aliexpress for a total of $63.25 They are 1.5" throat 13.3" W x 7.2" H x 5.1" D The waveguide is built very good 1/4" thick and the mounting flange is 3/8" thick. The drivers are B&C clones Lase N-75 bought off eBay $236.48 for a total of $279.73 not bad at all especially for the quality. I could have saved around $100 buying the drivers off aliexpress the reason I bought them from eBay is if I did not like them they would be easier to return technically I could return them to eBay now that I know I love them and buy them from aliexpress but I sell on eBay also and I don't like getting returns so did not want to be shady just to save $100 plus I really like these drivers. Here is the frequency response with no xover and with a xover. I have had in the past Altec 288 long time ago Radian 745 neo & radian 850's a couple years ago those are the only large format drivers I have experience with I have had many small format drivers Vinatge Altec 808,802,902, JBL Le-175, B&C DE-250, Beyma cp-380, radian 475 These are the first titanium diaphragm drivers I have owned and at 52 years old I feel I wasted a lot of valuable listening time with aluminum and non metal diaphragm drivers. These titanium diaphragm drivers have more detail than any driver I have ever owned and at the same time they are smooth and relaxed like radian 850's but more detail and they extend out quite a bit perfect for my taste makes me wish I would have tried some titanium diaphragms drivers a long time ago. Anyway just thought I would share my findings.
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I always heard the same thing titanium can sound harsh that is the exact reasons I bought the radian a few years ago. And looking at JBL they have so many titanium diaphragms same with Beyma and B&C and all those brands are well liked. Maybe it's just my 52 year old ears needing more detail. But everyone is different sound is so subjective it really comes down to personal taste. And yes the crossover is passive.
Here are some other popular waveguides on aliexpress one is a B&C me-45 clone with a 1.4" throat and popular a 18 sound 1" throat waveguide
https://www.aliexpress.us/item/3256...0468a514522&_t=gps-id:pcDetailTopMoreOtherSel
https://www.aliexpress.us/item/2251...431871620e64c4!65203961405!rec!US!2630799223!
https://www.aliexpress.us/item/3256...0468a514522&_t=gps-id:pcDetailTopMoreOtherSel
https://www.aliexpress.us/item/2251...431871620e64c4!65203961405!rec!US!2630799223!
Try SL diaphragms, aquaplas coated in that case. Used ven in they're BE diaphragms these days.
Radians are not free from issues either.
Fx the 950 AL has a noticeable resonance around 9k.
The 475be has more resonances then theyre alu counterpart etc.
Thanks for the info. 
That’s a good response on a small horn.
I’ve seen the LASE brand name around, but don’t remember ever using them. Or so I thought. But looking at their product line I might have a pair of their 18” neo woofers, but under a different brand name.
It true that titanium doesn’t have to be harsh. I have heard little Selenium drivers sound surprisingly smooth as silk when properly implemented.
That’s a good response on a small horn.I’ve seen the LASE brand name around, but don’t remember ever using them. Or so I thought. But looking at their product line I might have a pair of their 18” neo woofers, but under a different brand name.
It true that titanium doesn’t have to be harsh. I have heard little Selenium drivers sound surprisingly smooth as silk when properly implemented.
I use the JBL version of the horn which is a bit more money along with JBL 2431s. This setup would cost about 350.00 used drivers, new horn and is awesome.
I also used Faital TI with plastic surrounds that are smooth sounding and go surprisingly low too.
Early TI drivers with TI surrounds sounded great at first then like shattered glass after a short while.
I also used Faital TI with plastic surrounds that are smooth sounding and go surprisingly low too.
Early TI drivers with TI surrounds sounded great at first then like shattered glass after a short while.
Does this Lase N75 compression driver (clone of B&C DE990TN) have TI surrounds? Anyone know?
Does this Lase N75 compression driver (clone of B&C DE990TN) have TI surrounds? Anyone know? Titanium the screen shot is from Lase.us
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On their website Lase.us they sell the replacement diaphragms they are Ti surrounds so I would assume that is what is the driver came with from the factory. I would take mine apart and look but they are already installed in my cabinets. I have been listening to mine for two weeks now and still loving them.
