Speakerplans.com Homepage
Forum Home Forum Home > Plans > New Projects Forum
  New Posts New Posts RSS Feed - My BassHorn VS Martin WSX
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

My BassHorn VS Martin WSX

 Post Reply Post Reply Page  <1 45678 15>
Author
Message
Amano View Drop Down
Registered User
Registered User
Avatar

Joined: 06 October 2008
Location: Russia
Status: Offline
Points: 219
Post Options Post Options   Thanks (0) Thanks(0)   Quote Amano Quote  Post ReplyReply Direct Link To This Post Posted: 21 October 2008 at 3:22am

http://photofile.ru/photo/amanosempai/135165722/xlarge/138250109.jpg

Size like WSX, but it is more simple to make..


Edited by Amano - 21 October 2008 at 3:34am
Back to Top
mykey View Drop Down
Old Croc
Old Croc
Avatar

Joined: 18 August 2005
Location: UK/Indonesia
Status: Offline
Points: 9680
Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 21 October 2008 at 7:01am

Hi Amano!

 

Is that driver offset to the throat?

 

Try to imagine a very small gap, and a coil/capton has to fit snug in that gap, now it has to move backwards and forwards at a very fast pace, any non-linear action will burn out the coils fast

 

Efficient drivers have even smaller gaps like the PD1850, this is why the PD1850 has a monster double spider, to keep the "PISTON ACTION" linear

 

There has to be even pressure on the cone face for perfect linear motion

 

You might be lucky and find its ok, but do you really want to take that chance? 

 

The chamber is also small; this will have a very good ‘SPRING EFFECT’ on the cone. This may not help matters with an offset throat

 

Do you have a print of the SPL Graph for this box?

 

Back to Top
mykey View Drop Down
Old Croc
Old Croc
Avatar

Joined: 18 August 2005
Location: UK/Indonesia
Status: Offline
Points: 9680
Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 21 October 2008 at 7:22am
If you can improve on that throat area.....
 
I think this could be a very good "TURBO" sounding box, as in fast and punchy, quite efficient
 
EDIT:Confused  just noticed something, what have you taken as your throat area?
 
If its the point were it says 75mm, this will be the throat @ 403.5 cm2, if you have taken the throat area as 228 x 228, if its square?  this will be 519.84 cm2 and is larger than the 403.5cm2
 
the thing is, it looks like you have 2 throats? have you taken this into accountConfused
 
you have the volume in front of the cone, plus the cone area, to have a throat it needs to be smaller than the cone size, for instance an average cone size for a 18'' is roughly 1200cm2,  unless you are using the circular cuttout as the throat! and in this case you're not.
 
so lets look at this.........
 
cone area = 1200cm2 + an average 4.5 litres of volume in the cone
then we have a smaller area of half the size?   519.84 cm2
then we have some more volume in front of the 519.84cm2, then an even smaller area that I think you have used as the throat area = 403.5cm2 ?
 
1200cm2  -   519.84cm2  -  403.5cm2
 
how much have you calculated as throat chamber? you have 2 chambers in front of the cone/driverConfused
 
just call me eagle eye from now on!
 


Edited by mykey - 21 October 2008 at 8:55am
Back to Top
mykey View Drop Down
Old Croc
Old Croc
Avatar

Joined: 18 August 2005
Location: UK/Indonesia
Status: Offline
Points: 9680
Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 21 October 2008 at 8:04am
.... or you could call me "Mr Twothroats"
 
Hello! my name is Mr Twothroats...
 
and have you got two throats Mr?
 
....NO!... thats just my name
Back to Top
Robbo View Drop Down
Old Croc
Old Croc


Joined: 05 December 2005
Location: Shropshire
Status: Offline
Points: 3627
Post Options Post Options   Thanks (0) Thanks(0)   Quote Robbo Quote  Post ReplyReply Direct Link To This Post Posted: 21 October 2008 at 10:51am
The 2x15" cabinet shown on page one of this post is basically a shrunk down Martin Audio S bin---and you have exactly the same problems with it as the original Martin design---IT WILL NOT GO THROUGH MOST DOORWAYS so it is not a practical design as you would never be able to get it into most venues---the single 15 version should be quite nice though.
In the single 18" horn shown above, it needs loading to fire through a slot in the baffle board the same as Martin design and the slot must be centred on the cone dia as the off centre loading as shown will cause cones to disintegrate in that cabinet design/ 
Back to Top
Amano View Drop Down
Registered User
Registered User
Avatar

Joined: 06 October 2008
Location: Russia
Status: Offline
Points: 219
Post Options Post Options   Thanks (0) Thanks(0)   Quote Amano Quote  Post ReplyReply Direct Link To This Post Posted: 21 October 2008 at 9:28pm
Back to Top
Amano View Drop Down
Registered User
Registered User
Avatar

Joined: 06 October 2008
Location: Russia
Status: Offline
Points: 219
Post Options Post Options   Thanks (0) Thanks(0)   Quote Amano Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2008 at 3:24am


Edited by Amano - 22 October 2008 at 7:43am
Back to Top
wafflesomd View Drop Down
Young Croc
Young Croc


Joined: 21 September 2007
Status: Offline
Points: 811
Post Options Post Options   Thanks (0) Thanks(0)   Quote wafflesomd Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2008 at 3:41am
Well at least the chamber got bigger.

Horn looks smaller though.
Back to Top
mykey View Drop Down
Old Croc
Old Croc
Avatar

Joined: 18 August 2005
Location: UK/Indonesia
Status: Offline
Points: 9680
Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2008 at 7:07am
Amano, can you give us 1w1m please
Back to Top
Amano View Drop Down
Registered User
Registered User
Avatar

Joined: 06 October 2008
Location: Russia
Status: Offline
Points: 219
Post Options Post Options   Thanks (0) Thanks(0)   Quote Amano Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2008 at 7:38am
Originally posted by mykey mykey wrote:

Amano, can you give us 1w1m please

1w1m 2pi:

Back to Top
mykey View Drop Down
Old Croc
Old Croc
Avatar

Joined: 18 August 2005
Location: UK/Indonesia
Status: Offline
Points: 9680
Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2008 at 7:47am
Not bad, from memory it looks better than the WSX
Back to Top
mykey View Drop Down
Old Croc
Old Croc
Avatar

Joined: 18 August 2005
Location: UK/Indonesia
Status: Offline
Points: 9680
Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2008 at 7:52am

Amano! your throat would be 597cm2 not 420cm2

so this would aslo shorten the length of the horn

Back to Top
 Post Reply Post Reply Page  <1 45678 15>
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.047 seconds.