|
"Modular Horn" by Mr Punisher? |
Post Reply 
|
Page <1234 8> |
| Author | |
FUBARD303 
Registered User 
Contentiously righteous Joined: 29 September 2008 Location: Allup Inyo MOUF Status: Offline Points: 120 |
 Post Options
 Thanks(0)
 Quote Reply
 Posted: 23 January 2009 at 4:03pm |
|
I really need to sit down n learn hornresp. I so wish I had a graph of theese guys with the reccomended. 18sound 18lf1400 in em. Now my stupider question is...
If the horn resonates down to 35hz when laired and lower when I build all 4 of em, won't the depth be stopped by my driver's 31hz resonant peak? I mean one IS supposed to cut it just above the RP right? |
|
|
"Always look on the bright side of life" -Brian
|
|
 |
|
|
darkmatter
Old Croc 
Joined: 26 February 2005 Location: LDN Status: Offline Points: 2419 |
Post Options
Thanks(0)
Quote Reply
Posted: 23 January 2009 at 5:56pm |
|
These are definitely not correct, I haven't a clue how to use HornResp properly and I couldn't be bothered to work out Atc/Vtc properly so I guessed
 
|
|
|
|
|
FUBARD303
Registered User
Contentiously righteous Joined: 29 September 2008 Location: Allup Inyo MOUF Status: Offline Points: 120 |
Post Options
Thanks(0)
Quote Reply
Posted: 26 January 2009 at 3:44am |
|
|
|
|
"Always look on the bright side of life" -Brian
|
|
|
|
|
boycey
Old Croc
Joined: 25 June 2006 Location: Manor House Status: Offline Points: 1612 |
Post Options
Thanks(0)
Quote Reply
Posted: 26 January 2009 at 11:10am |
|
darkmatter- where did you take the throat? or where do you reckon it should be? i've been thinking about building a pair of these, possibly modded for a v18 1000. might have a play about with this today.
|
|
|
the only thing more dangerous than a person who doesn't give a f**k is a person who gives a sh*t.
|
|
|
|
|
boycey
Old Croc
Joined: 25 June 2006 Location: Manor House Status: Offline Points: 1612 |
Post Options
Thanks(0)
Quote Reply
Posted: 26 January 2009 at 12:40pm |
|
i've calculated the rear chamber to be very very close to 120l, my mac is behaving like a twat though and i can't seem to download pdfs properly, can anyone tell me how much volume the driver takes up?
edit: and s1=670 Edited by boycey - 26 January 2009 at 12:43pm |
|
|
the only thing more dangerous than a person who doesn't give a f**k is a person who gives a sh*t.
|
|
|
|
|
darkmatter
Old Croc
Joined: 26 February 2005 Location: LDN Status: Offline Points: 2419 |
Post Options
Thanks(0)
Quote Reply
Posted: 26 January 2009 at 2:24pm |
|
my 105 was a rough estimate based on 119.5 minus driver and handles volume.
start of the throat was guessed by eye, as was horn length, Vtc, Atc  at least it got the ball rolling hehe |
|
|
|
|
boycey
Old Croc
Joined: 25 June 2006 Location: Manor House Status: Offline Points: 1612 |
Post Options
Thanks(0)
Quote Reply
Posted: 26 January 2009 at 2:41pm |
|
i'm taking s1 to be the vertical distance on the first fold from the driver- there being no corner piece right of there to extend the horn and bring Vtc down. whaddya reckon?
having an mare calculating Vtc though... if you (or any other helpful person) can riddle me this it would get us there much quicker. my various sine/cosine rule manipulations have given me a headache and are producing results which don't match the plan... anyways: we have an irregular quadrilateral, with angles: A=78, B=99, C=159, D=24. side AB=154mm and AD=520mm. what is the area of quadrilateral ABCD? i'm off to make lunch  edit: correction to side AB Edited by boycey - 26 January 2009 at 4:00pm |
|
|
the only thing more dangerous than a person who doesn't give a f**k is a person who gives a sh*t.
|
|
|
|
|
Deadbeat
Old Croc
Joined: 12 March 2008 Location: Singularity Status: Offline Points: 3167 |
Post Options
Thanks(0)
Quote Reply
Posted: 26 January 2009 at 3:24pm |
|
Split it into triangles...
|
|
|
Away on extended leave.
|
|
|
|
|
boycey
Old Croc
Joined: 25 June 2006 Location: Manor House Status: Offline Points: 1612 |
Post Options
Thanks(0)
Quote Reply
Posted: 26 January 2009 at 3:44pm |
|
according to the quite lovely crispy on the urban75 board my quadrilateral intersects itself, hence my issues.
i have put it in hands more capable than my own for now, there's a whole team beavering at this. i'll keep you posted. it should be there quite soon.  |
|
|
the only thing more dangerous than a person who doesn't give a f**k is a person who gives a sh*t.
|
|
|
|
|
boycey
Old Croc
Joined: 25 June 2006 Location: Manor House Status: Offline Points: 1612 |
Post Options
Thanks(0)
Quote Reply
Posted: 26 January 2009 at 3:59pm |
|
|
|
the only thing more dangerous than a person who doesn't give a f**k is a person who gives a sh*t.
|
|
|
|
|
boycey
Old Croc
Joined: 25 June 2006 Location: Manor House Status: Offline Points: 1612 |
Post Options
Thanks(0)
Quote Reply
Posted: 26 January 2009 at 4:46pm |
|
ok then, Vtc according to me and crispy is 37.78l
|
|
|
the only thing more dangerous than a person who doesn't give a f**k is a person who gives a sh*t.
|
|
|
|
|
FUBARD303
Registered User
Contentiously righteous Joined: 29 September 2008 Location: Allup Inyo MOUF Status: Offline Points: 120 |
Post Options
Thanks(0)
Quote Reply
Posted: 27 January 2009 at 1:28am |
|
This feels like history in the making...
 |
|
|
"Always look on the bright side of life" -Brian
|
|
|
|
|
Post Reply
|
Page <1234 8> |
| 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 |
Topic Options
boycey wrote: