Levan Horn Extension |
Post Reply | Page 123 9> |
Author | |
nomercy82
Registered User Joined: 06 April 2011 Location: Pittsburgh PA Status: Offline Points: 265 |
Post Options
Thanks(0)
Posted: 07 November 2011 at 12:20am |
I work for a local audio company in Pittsburgh now. Last night I was at a club that had the EAW version of the "big Bertha." Spoke to the club owner and he said he would let me measure out the levan extension. Would I be violating any copyrights or anything, if I were to post a detailed plan of what that extension is?
I have the BH 882 plans already thanks to the people on this site. 30 hZ thunder any one? Yes I know they are huge I had the privilege of standing in front of 2 stacked on top of each other while they played. |
|
Building a system in Pennsylvania.
|
|
Laurin
Registered User Joined: 10 July 2006 Location: Germany Status: Offline Points: 182 |
Post Options
Thanks(0)
|
No you dont violate any laws cause EAW itself has posted the plans.
|
|
nomercy82
Registered User Joined: 06 April 2011 Location: Pittsburgh PA Status: Offline Points: 265 |
Post Options
Thanks(0)
|
Thank you Laurin. Don't you have a few Bertha's yourself? If so are yours the EAW or the RLA version?
Edited by nomercy82 - 07 November 2011 at 3:33pm |
|
Building a system in Pennsylvania.
|
|
Laurin
Registered User Joined: 10 July 2006 Location: Germany Status: Offline Points: 182 |
Post Options
Thanks(0)
|
I bought some EAW versions a few years back.
And I got the chance to measure the RLA version. The only difference is the throat, so wit a lot of wood I did a trial and error how the sound changes with different throats. "My" version is closer to the EAW version, also tried different driver. RCF L18P200 is the original EAW driver and is really good, but does not like it to be driven very hard. |
|
nomercy82
Registered User Joined: 06 April 2011 Location: Pittsburgh PA Status: Offline Points: 265 |
Post Options
Thanks(0)
|
This is me standing infront of 2 of them playing. It's not a smokey environment It's the bass coming out of them causing that in the picture. Yes I have ear plugs in. The bass was phenomenal. So you're satisfied with a hybrid of the EAW and RLA bertha mouth. When you say you took measurements of them do you mean you measured sub box and extension or just extension. I don't get why this box is such a trade secret. I REALLY doubt they are under some kind of copyright.
|
|
Building a system in Pennsylvania.
|
|
Laurin
Registered User Joined: 10 July 2006 Location: Germany Status: Offline Points: 182 |
Post Options
Thanks(0)
|
No plans for the Levan horn, never had the space to use them.
|
|
nomercy82
Registered User Joined: 06 April 2011 Location: Pittsburgh PA Status: Offline Points: 265 |
Post Options
Thanks(0)
|
Didn't you just say you measured both the EAW and RLA versions? I have the plans for the box, so all I'm looking for is just that massive extension. The EAW version of it. EAW Calls them the 999551 Horn mouth extension. That's what I'm looking for.
|
|
Building a system in Pennsylvania.
|
|
Laurin
Registered User Joined: 10 July 2006 Location: Germany Status: Offline Points: 182 |
Post Options
Thanks(0)
|
RLA Bertha & EAW Bertha not the Levan. If I was planing to build a Levan horn a would use that: And would look at the dimensions from the Bertha and than at the Dimensions from the Levan. Maybe I would have a look at this to: |
|
nomercy82
Registered User Joined: 06 April 2011 Location: Pittsburgh PA Status: Offline Points: 265 |
Post Options
Thanks(0)
|
I really like how you work. Sorry for the confusion my understanding was that Bertha was the name of the cabinet, and levan was the name of the extension when really the cabinet with the extension at the time was one solid unit, called the Levan, and the same cabinet with out the extension was simply called the Bertha.
I think I'm going to single handedly raise the value of home depot's stock with all the wood I'm going to have to buy. any clue as to angles ? |
|
Building a system in Pennsylvania.
|
|
nomercy82
Registered User Joined: 06 April 2011 Location: Pittsburgh PA Status: Offline Points: 265 |
Post Options
Thanks(0)
|
I just got off the phone with EAW. They told me that someone had actually gotten a hold of one of their BH 882s and ripped it apart to find the measurements. when I asked if they could point me to where I could just buy their version of the Levan extension the 99951 they essentially blew me off by pointing me to one of their newer products.
So now I'm more determined to build this extension. From your of the RLA ad I got the extenal dimensions. 42 tall, 30.5 deep 96 at the exit of the mouth. 59.5 inches at the entrance of the mouth. The triangle portion on the inside is 15.68 inches into the center of the horn mouth. the edges of the triangle inside the extension are 460 mm long (equilateral triangle 60, 60, 60), the posts are 32 inches on center apart from each other. There is a 3d Sketch up coing as i type this. So I can smooth out the design inconsistencies ( signifigant figures and what not). Nearly finished. Will be uploaded by the end of the day. |
|
Building a system in Pennsylvania.
|
|
james folkes
Old Croc Joined: 08 January 2005 Location: United Kingdom Status: Offline Points: 3064 |
Post Options
Thanks(0)
|
boom!
lovely mix of metric and imperial you got going there andre... "how long is that bit?" "4' 3mm." james. |
|
mardy hippy.
|
|
nomercy82
Registered User Joined: 06 April 2011 Location: Pittsburgh PA Status: Offline Points: 265 |
Post Options
Thanks(0)
|
James do you have any information on the triangles to the edges of the Levan extension? That's the only area I essentially took an educated guess.
|
|
Building a system in Pennsylvania.
|
|
Post Reply | Page 123 9> |
Tweet |
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |