Planar Wave horn |
Post Reply | Page 123 22> |
Author | |
Mircea Bartic
Old Croc Joined: 18 February 2005 Location: Romania Status: Offline Points: 2582 |
Post Options
Thanks(0)
Posted: 12 March 2006 at 4:57am |
It looks like I'll have some new toys for a few days
I have a custom order for some really powerfull subs Planar wave horn plan the sub used will be Selenium 18SW1P http://www.partsexpress.com/pe/pshowdetl.cfm?&DID=7& Partnumber=264-438&ctab=10 Edited by Nexus_3 - 01 April 2006 at 3:01pm |
|
general manager & head designer at nexus-acoustics research
http://www.facebook.com/nexus.acoustics.research Ex Nexus_3 |
|
Mircea Bartic
Old Croc Joined: 18 February 2005 Location: Romania Status: Offline Points: 2582 |
Post Options
Thanks(0)
|
I'll post some pics as I'll build them next week
|
|
general manager & head designer at nexus-acoustics research
http://www.facebook.com/nexus.acoustics.research Ex Nexus_3 |
|
tb_mike
Old Croc Joined: 01 October 2004 Location: New Zealand Status: Offline Points: 2744 |
Post Options
Thanks(0)
|
Planar horn bass reflex?
18" on BR,decent anyway. |
|
Mircea Bartic
Old Croc Joined: 18 February 2005 Location: Romania Status: Offline Points: 2582 |
Post Options
Thanks(0)
|
it's a design derived from dynacord Planar wave horn subs
the port ending outside the waveguide helps achieve better subbass reproduction horn coupling is not necesary |
|
general manager & head designer at nexus-acoustics research
http://www.facebook.com/nexus.acoustics.research Ex Nexus_3 |
|
tb_mike
Old Croc Joined: 01 October 2004 Location: New Zealand Status: Offline Points: 2744 |
Post Options
Thanks(0)
|
Ah yes i remember that sub now. When you do make some,could you measure its impedence vs frequency etc? Im interested in how that short tunnel helps it at all.
|
|
freddyi
Registered User Joined: 22 September 2004 Status: Offline Points: 936 |
Post Options
Thanks(0)
|
COOL horn expansion rate - PV Low
Rider (if meet spec) look like a drop-in substitute for US
cheapass. Are PV Low Rider 18 OK? -- I've 1808 and they are
way off specification so are now "open baffle woofer"
|
|
Mircea Bartic
Old Croc Joined: 18 February 2005 Location: Romania Status: Offline Points: 2582 |
Post Options
Thanks(0)
|
one way of testing if other speakers work in the design is this one:
because there is no speaker simulation program capable to polt this design we have to work around that. 1. plot this speaker in bass box as a simple bassreflex box (no horn) 2. load another driver in that enclosure and try to reach the same plot 3. when you have identical plots then it should work ok in the planar horn. modifications to the reflex ports will be necesary I know that P-audio c18-650EL works in this design , but you have to shorten the ports by 110 milimeters Edited by Nexus_3 - 13 March 2006 at 2:56pm |
|
general manager & head designer at nexus-acoustics research
http://www.facebook.com/nexus.acoustics.research Ex Nexus_3 |
|
tb_mike
Old Croc Joined: 01 October 2004 Location: New Zealand Status: Offline Points: 2744 |
Post Options
Thanks(0)
|
Freddy - Easier to make a K? Whatabout d&B B2 patent? I want to try it,measure impedence etc,even if it just makes a nice 45hz ! |
|
djstefanos
Old Croc Joined: 18 November 2005 Status: Offline Points: 2355 |
Post Options
Thanks(0)
|
does anyone know where i can get the full plan of the sub above? Those are really easy to make. Just move the baffle half way.... I have heard those (dynacords) in stacks of 6 per side during an outdoor concert in a square. Rattled my glass of wine in the bar i was in. Edited by djstefanos - 13 March 2006 at 10:34pm |
|
james folkes
Old Croc Joined: 08 January 2005 Location: United Kingdom Status: Offline Points: 3064 |
Post Options
Thanks(0)
|
probably a silly question, but i'm assuming to load the driver you shimmy it
past the mouth brace and then climb half in side the cab to bolt it in? pictures would indeed be nice, plots would be nicer. james. |
|
mardy hippy.
|
|
Mark James
Old Croc Joined: 15 January 2006 Location: rig side Status: Offline Points: 5309 |
Post Options
Thanks(0)
|
are they actualy that simple/good? im interested in finding out more!
|
|
Peter Moller
Old Croc Joined: 26 December 2005 Location: Denmark Status: Offline Points: 2531 |
Post Options
Thanks(0)
|
2 questions: Can you explain the hornloading part of this box?.. In other words: How do I do the math to design that horn?... Are we talking Helmholz resonators or ? Why does the handles on your drawing say "Cobra PWH" :-)... Did you measure a PWH sub or are you just using the outside dimensions and retuning it to suit the Selenium driver? /peter |
|
Post Reply | Page 123 22> |
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 |