3-way - Tower Speaker Project with Seas Drivers - Page 2 - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 7th March 2012, 03:10 AM   #11
diyAudio Member
 
Join Date: Dec 2011
Location: England
i must be slightly mad because it is now 4am and i have ordered the drive units i posted links to above. i have the design in my head and it will look sweet, will try and get it out of my head into paint so i can post it on here, tommorrow
  Reply With Quote
Old 7th March 2012, 11:43 AM   #12
diyAudio Member
 
Join Date: Dec 2011
Location: England
could someone with significant understanding voice there opinion regarding my views to tuning the woofer lower on the previous page

if someone could simulate the box with a better program, or point me in the right direction, i would be gratefull, thankyou
  Reply With Quote
Old 7th March 2012, 07:51 PM   #13
diyAudio Member
 
Join Date: Dec 2011
Location: England
  Reply With Quote
Old 7th March 2012, 08:29 PM   #14
sreten is offline sreten  United Kingdom
diyAudio Member
 
Join Date: Nov 2003
Location: Brighton UK
Quote:
Originally Posted by WaVeInFoRm View Post
could someone with significant understanding voice there opinion
regarding my views to tuning the woofer lower on the previous page

if someone could simulate the box with a better program, or
point me in the right direction, i would be gratefull, thankyou
Hi,

The driver is not unloaded at the port frequency, at that frequency
it has a movement minima and then unloads at lower frequencies.

You seem to be mixing up the H1305 and the H1316 parameters.
The H1305 will be fine in ~ 60L to ~ 90L tuned to 25Hz, I'd say 75L.

rgds, sreten.
__________________
There is nothing so practical as a really good theory - Ludwig Boltzmann
When your only tool is a hammer, every problem looks like a nail - Abraham Maslow
  Reply With Quote
Old 7th March 2012, 08:42 PM   #15
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
you will probbaly have to play very loud before you exceed the xmax limit

I'd say 80 liter netto, meaning you should ad the volume of driver, bracing, and port

but 120 liter sealed/closed might be nice too
  Reply With Quote
Old 7th March 2012, 09:59 PM   #16
diyAudio Member
 
Join Date: Dec 2011
Location: England
ah! i most probably had both pdf files open at the same time and got confused, thankyou for pointing that out.

i will re enter the values and post a re-simulation.

thankyou for the information regarding minus-ing the area of the air colum in the port, and the volume of the internal structure of the port and bracing, ... and the driver chassis. maths isnt my strong point, but im sure i will work it out

here is the basic concept of the design and port, and i say basic because it is not to scale or mesured and it is not done in a 3d modeling program that i dont know how to use.

Click the image to open in full size.
upload images

Click the image to open in full size.
image hosting jpeg




i will post the re-sim tomorrow, i really need sleep tonight...

Last edited by WaVeInFoRm; 7th March 2012 at 10:02 PM.
  Reply With Quote
Old 7th March 2012, 10:05 PM   #17
DrDyna is offline DrDyna  United States
diyAudio Member
 
DrDyna's Avatar
 
Join Date: May 2007
Blog Entries: 3
Quote:
Originally Posted by WaVeInFoRm View Post
ah! i most probably had both pdf files open at the same time and got confused, thankyou for pointing that out.

i will re enter the values and post a re-simulation.

thankyou for the information regarding minus-ing the area of the air colum in the port, and the volume of the internal structure of the port and bracing, ... and the driver chassis. maths isnt my strong point, but im sure i will work it out

here is the basic concept of the design and port, and i say basic because it is not to scale or mesured and it is not done in a 3d modeling program that i dont know how to use.

Click the image to open in full size.
upload images

Click the image to open in full size.
image hosting jpeg




i will post the re-sim tomorrow, i really need sleep tonight...
LOLOLOLOLOLOLOLOL

I'm sorry, that's just terrific.
  Reply With Quote
Old 7th March 2012, 10:12 PM   #18
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
now you worry me
  Reply With Quote
Old 7th March 2012, 10:29 PM   #19
sreten is offline sreten  United Kingdom
diyAudio Member
 
Join Date: Nov 2003
Location: Brighton UK
Hi,

Nice drawings ....

Vertically aligned mid/ treble drivers are better.

By all means use a separate box for the mid but
place the tweeter on the top of the bass box,
directly below the mid unit.

I suspect you really don't know the x/o issues.

Lowering the bass unit and the bass/mid x/o
point can bypass the common "floordip" issue.

look at :
http://www.htguide.com/forum/showpost.php4?p=501582

rgds, sreten.

undefinition (see if nothing else, the excellent FAQs)
The Speaker Building Bible - Thread opened for edits/input. - Techtalk Speaker Building, Audio, Video, and Electronics Customer Discussion Forum From Parts-Express.com
Zaph|Audio
Zaph|Audio - ZA5 Speaker Designs with ZA14W08 woofer and Vifa DQ25SC16-04 tweeter
FRD Consortium tools guide
http://web.archive.org/web/200909021...esigningXO.htm
RJB Audio Projects
http://web.archive.org/web/200909022...ve99/Spkrbldg/
Speaker Design Works
HTGuide Forum - A Guide to HTguide.com Completed Speaker Designs.
A Speaker project
DIY Loudspeaker Projects Troels Gravesen
Humble Homemade Hifi
Quarter Wavelength Loudspeaker Design
The Frugal-Horns Site -- High Performance, Low Cost DIY Horn Designs
Linkwitz Lab - Loudspeaker Design
Music and Design

Great free SPICE Emulator : SPICE-Based Analog Simulation Program - TINA-TI - TI Tool Folder
__________________
There is nothing so practical as a really good theory - Ludwig Boltzmann
When your only tool is a hammer, every problem looks like a nail - Abraham Maslow

Last edited by sreten; 7th March 2012 at 10:34 PM.
  Reply With Quote
Old 7th March 2012, 10:35 PM   #20
diyAudio Member
 
Join Date: Dec 2011
Location: England
ok funny drawing aside...

i will run the risk of the floordip issue, i see what you mean, but there are always trade offs, i want the drivers in close proximity. and i have many reasons why i wouldnt want the port higher on the cabinet, or the driver lower on it

in regards to vertical alighnment, as the mid and tweeter will be happly married in a seperate box, i will have the option of standing that box upright or lying it down. depending on what sounds better and what takes my fancy at the time, vertical will probubly look nicer, and i want all drivers at ear level with the bass a foot or so below ear level

how about the port concept? will the sound be happy if it enters at the top, turns 90 degrees onto the horizontal plane goes forward then does a 180 degree turn and comes out the front?

in other words, is it ok to have a few turns in a port? and for that port to be square? or would i be better off with a strait cylindrical tube?

Last edited by WaVeInFoRm; 7th March 2012 at 11:00 PM.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Speaker project (AE & Newform Reasearch drivers) Reinyn Swap Meet 2 7th November 2011 02:10 PM
FS: Half Complete DIY Project (SEAS Drivers, Speakons, Biamped)--Very Detailed gtphill Swap Meet 0 13th June 2008 07:13 PM
Focal tower speaker Project pjpoes Multi-Way 25 26th May 2008 11:54 AM
Does anyone have the a speaker workshop project with Seas 27TBFC/G measurements? owdi Multi-Way 1 3rd August 2006 03:06 AM
DIY speaker project - what drivers? Karanael Multi-Way 0 24th November 2004 07:15 PM


New To Site? Need Help?

All times are GMT. The time now is 03:34 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2