Speakerplans.com Homepage
Forum Home Forum Home > Plans > Other plans
  New Posts New Posts RSS Feed - "NEW" PLANS CV earthquake sub-horn +infra upgrade!
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

"NEW" PLANS CV earthquake sub-horn +infra upgrade!

 Post Reply Post Reply Page  <12
Author
Message
kawmic View Drop Down
New Member
New Member


Joined: 15 April 2013
Location: denmark
Status: Offline
Points: 2
Post Options Post Options   Thanks (0) Thanks(0)   Quote kawmic Quote  Post ReplyReply Direct Link To This Post Posted: 15 April 2013 at 1:04pm
jeg har 4 stk jbl 128h 12 " basser. synes de mangler noget i følsomhed(91db).
kunne godt tænke mig bedre følsomhed, the de kun er på 100watt vedvarende.
Kunne et sådant hornsystem være godt til dem?
måske med 2 eller flere enheder i?
Venlig hilsen Michael
kawmic@gmail.com
Back to Top
SvempaPrim View Drop Down
Registered User
Registered User
Avatar

Joined: 24 February 2011
Location: Sweden
Status: Offline
Points: 75
Post Options Post Options   Thanks (0) Thanks(0)   Quote SvempaPrim Quote  Post ReplyReply Direct Link To This Post Posted: 15 April 2013 at 1:29pm
English please.
Back to Top
kawmic View Drop Down
New Member
New Member


Joined: 15 April 2013
Location: denmark
Status: Offline
Points: 2
Post Options Post Options   Thanks (0) Thanks(0)   Quote kawmic Quote  Post ReplyReply Direct Link To This Post Posted: 15 April 2013 at 1:40pm
sorry. i was writing in danish, because i saw it was a danish poster. 
ok. nevermind. here goes:

I have 4 pieces jbl 128h 12 "woofers. seems they lack something in sensitivity (91dB).

I'd like better sensitivity,because they are only 100watt.

Could such a horn system be good for them?

Maybe with 2 or more units?

Sincerely, Michael
Back to Top
joahed01 View Drop Down
New Member
New Member
Avatar

Joined: 15 October 2014
Location: SE
Status: Offline
Points: 1
Post Options Post Options   Thanks (0) Thanks(0)   Quote joahed01 Quote  Post ReplyReply Direct Link To This Post Posted: 15 October 2014 at 10:13am
Hi, i have an acousto-pro P18110A (specs: VAS 423, Qts 0,54, Qes 0,57, Qms 8,7, Fs 30, Re 6,2, Sens 98dB, Le 1,6 mH, Pmax 300, sd 1288cm2). I would like to make an L48 and use your new plans but i think this speaker needs more chamber space.....you have made 79l this speaker needs about 460l cab if i do an basreflex cab (i have that but i would like to try L48SE).
Is it possible, and what size must my internal enclosor be, and can i in the case that it will work use the unused spaces in your new plan (young croc).
Best regards Jocke
Back to Top
tv00 View Drop Down
Old Croc
Old Croc


Joined: 10 August 2009
Location: Denmark
Status: Offline
Points: 1882
Post Options Post Options   Thanks (0) Thanks(0)   Quote tv00 Quote  Post ReplyReply Direct Link To This Post Posted: 15 October 2014 at 10:31am
Hello there, sorry I didn't see all these posts until now.
If you're doing a new build I wouldn't recommend this design.

I made a smaller rearchamber to control excursion, in this case we used mouth extensions (see thread elsewhere for details).

But if you were to use these boxes without mouth extensions I would suggest making a port in front, no matter if it is the long or short version. The port and horn can be simmed in hornresp using the "combined response" function. This makes it a ported hybrid horn.

This way you get two good things, cooling & low end extension. The port shoud be tuned to work just below the horn cutoff. Best freq is found in hornresp, go for a smooth response downwards, if you get a bump in the low end make the port tunning lower, if you get a dip, make it higher.

I will suggest these mods only for people who already have the old boxes.
@joahed01: In a brief look the driver doesn't look to suited for a horn, but perhaps a ported hybrid.
If you're ever around Copenhagen you're welcome to come have a look

www.facebook.com/babysoundsystem
Back to Top
Niclas Seifen View Drop Down
New Member
New Member
Avatar

Joined: 30 March 2020
Status: Offline
Points: 2
Post Options Post Options   Thanks (0) Thanks(0)   Quote Niclas Seifen Quote  Post ReplyReply Direct Link To This Post Posted: 30 March 2020 at 4:39pm
@tv00
the pictures you posted, arent visible anymore,
could you post them again or pm them to me?
Back to Top
VECTORDJ View Drop Down
Registered User
Registered User
Avatar

Joined: 11 June 2006
Location: United States
Status: Offline
Points: 328
Post Options Post Options   Thanks (0) Thanks(0)   Quote VECTORDJ Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2020 at 2:19pm
A+   Can You post photos of the install??? VECTORSONICS
Back to Top
 Post Reply Post Reply Page  <12
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.03
Copyright ©2001-2019 Web Wiz Ltd.

This page was generated in 0.093 seconds.