AVS Forum banner

21 - 40 of 361 Posts

·
Registered
Joined
·
30,735 Posts
Discussion Starter #21

Quote:
Originally Posted by Martycool007  /t/1530592/thinking-about-a-raal-in-a-waveguide#post_24695767


If you don't end up buying Erich's existing stock of the Seos-RAAL waveguides then I may have to pick them up as I really want to use them in a build that I have been collecting parts for. Only problem is that it will be 4 to 6 weeks before I can afford those $185.00

, each, waveguides.


If Erich, or anyone else would like to see some measurements of the Seos-RAAL waveguide + RAAL tweeter combo, Erich is welcome to ship me one to mount onto my RAAL's and I could do the polars, frequency plots, and any other measurements that you guys want to see!

Do you have the 140-15D?
 

·
Registered
Joined
·
30,735 Posts
Discussion Starter #23

Quote:
Originally Posted by Martycool007  /t/1530592/thinking-about-a-raal-in-a-waveguide#post_24698643


No, I am using the more common 70-20xr.

I am pretty sure that tweeter, even mounted in a waveguide, will not go low enough for a 2-way.
 

·
Registered
Joined
·
4,810 Posts
You can always crossover at 1.6-2khz with the Raal or Beyma. Obviously 1.8Khz with the RAAL. Seems simple enough with an 8" possibly AETD8 or other.
 

·
Registered
Joined
·
30,735 Posts
Discussion Starter #26

Quote:
Originally Posted by Anthony_Gomez  /t/1530592/thinking-about-a-raal-in-a-waveguide#post_24698793

http://www.stonessoundstudio.com.au/stone/Raal/raal_7020XR_ribbon_tweeter.htm

Looks like 2 way isn't a problem.
Quote:
Originally Posted by chrapladm  /t/1530592/thinking-about-a-raal-in-a-waveguide#post_24699580


You can always crossover at 1.6-2khz with the Raal or Beyma. Obviously 1.8Khz with the RAAL. Seems simple enough with an 8" possibly AETD8 or other.

A TD12M loses directivity above 1,200hz.
 

·
Banned
Joined
·
3,677 Posts
Why are you considering such a high efficient woofer to use with this less efficient tweeter? Won't that cause some issues with regards to the crossover design? I would use a pair of ScanSpeak Rev's or Illuminators as they will easily play to 1,800hz and have excellent sound quality and be a better match sensitivity wise, assuming that you go with a passive crossover as using an active crossover might make this a non-issue!


If it were me, I would make this build a 3-way active using a nice mid from the likes of Seas, ScanSpeak, or possibly Moral, or even a planner mid such as the BG Neo10 or Neo8! A 3-way setup using the Neo10 from 400hz to 2,000hz with the RAAL covering everything above that would be freaking awesome! You could then do a pair of W18's or a pair of ER18's for the low end!
 

·
Registered
Joined
·
30,735 Posts
Discussion Starter #28

Quote:
Originally Posted by Martycool007  /t/1530592/thinking-about-a-raal-in-a-waveguide#post_24700076


Why are you considering such a high efficient woofer to use with this less efficient tweeter? Won't that cause some issues with regards to the crossover design? I would use a pair of ScanSpeak Rev's or Illuminators as they will easily play to 1,800hz and have excellent sound quality and be a better match sensitivity wise, assuming that you go with a passive crossover as using an active crossover might make this a non-issue!


If it were me, I would make this build a 3-way active using a nice mid from the likes of Seas, ScanSpeak, or possibly Moral, or even a planner mid such as the BG Neo10 or Neo8! A 3-way setup using the Neo10 from 400hz to 2,000hz with the RAAL covering everything above that would be freaking awesome! You could then do a pair of W18's or a pair of ER18's for the low end!

The RAAL 140-15D is 95db sensitive. Put a waveguide on it and it will be at least 97DB sensitivity. A TD12M is 96.5db sensitivity. Looks like a good match to me, if the RAAL could go low enough. I know the Beyma TPL-150H can go low enough and it has enough sensitivity to be matched with a pair of TD12M's. Only problem with matching a pair of TD12M's with the TPL-150H is my TD12M's are 8 ohm versions. I guess I could use my MiniDSP10x10HD as an active crossover with the pair of TD12M's at 4 ohm and the TPL-150H at 8 ohm.
 

·
Registered
Joined
·
30,735 Posts
Discussion Starter #30

Quote:
Originally Posted by tuxedocivic  /t/1530592/thinking-about-a-raal-in-a-waveguide#post_24700319


Mixing 4 and 8 ohm is not a problem with passive.


Even on a wide baffle, usually there's some low frequency loss that'll reduce the final sensitivity around 3db or so.

I think I will go ahead and order three TD12M's in 8 ohm version and see about getting the TPL-150H drivers, since I know those will go low enough. Need to go MTM to get the tweeter at the right height. Will baffle wall mount these. What would you suggest for box volume sealed and ported. Will be used with multiple subs. Just need to get below 80Hz.
 

·
Registered
Joined
·
1,414 Posts

Quote:
Originally Posted by AV Science Sales 5  /t/1530592/thinking-about-a-raal-in-a-waveguide#post_24700524


I think I will go ahead and order three TD12M's in 8 ohm version and see about getting the TPL-150H drivers, since I know those will go low enough. Need to go MTM to get the tweeter at the right height. Will baffle wall mount these. What would you suggest for box volume sealed and ported. Will be used with multiple subs. Just need to get below 80Hz.
.6cf sealed with heavy fill/stuffing will give you a -3 of 80hz, Q of .55, and enough power handing for 120db per woofer.
 

·
Registered
Joined
·
30,735 Posts
Discussion Starter #32

Quote:
Originally Posted by Face2  /t/1530592/thinking-about-a-raal-in-a-waveguide/30#post_24701818


.6cf sealed with heavy fill/stuffing will give you a -3 of 80hz, Q of .55, and enough power handing for 120db per woofer.

Two TD12M's per speaker in a MTM configuration. If only need .6CF per driver for 80hz sealed, then I would shoot for 60HZ f3
 

·
Registered
Joined
·
7,989 Posts
Wow, committed!



This build is going to be really something. I'll be following along. I'd love the opportunity to assist. I know Face has some good experience with AE drivers and also think he's used the TPL150. If not, he's used other ribbons and such.
 

·
Registered
Joined
·
30,735 Posts
Discussion Starter #36

Quote:
Originally Posted by tuxedocivic  /t/1530592/thinking-about-a-raal-in-a-waveguide/30#post_24702980


Wow, committed!



This build is going to be really something. I'll be following along. I'd love the opportunity to assist. I know Face has some good experience with AE drivers and also think he's used the TPL150. If not, he's used other ribbons and such.

Thank you. I can use all the help that I can get.
 

·
Registered
Joined
·
30,735 Posts
Discussion Starter #38

Quote:
Originally Posted by clausdk  /t/1530592/thinking-about-a-raal-in-a-waveguide/30#post_24703396


Cool project.


Here's vaporsounds Arcus
http://www.vaporsound.com/speakers/arcus/


Beyma ribbon and AE TD10

A little different, it has an ambience tweeter mounted on the back.
 

·
Registered
Joined
·
30,735 Posts
Discussion Starter #39
Not looking forward to the tear down of my front wall. Just did this earlier this year. Will have to remove masking system, screen and sound panels. Then will have to remove the block out I have in the wall for the center speaker. Install a larger block out, then build baffle on front wall. Between that and the speakers will be a lot of work, but looking forward to the finished product.
 

·
Premium Member
Joined
·
24,648 Posts

Quote:
Originally Posted by Face2  /t/1530592/thinking-about-a-raal-in-a-waveguide/0_50#post_24701818


.6cf sealed with heavy fill/stuffing will give you a -3 of 80hz, Q of .55, and enough power handing for 120db per woofer.

Maybe you mean TD12X?


WinISD gives me something like 110 Hz minimum F3 for TD12M when sealed.
 
21 - 40 of 361 Posts
Top