Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Multi-Way Conventional loudspeakers with crossovers

NEWBIE: Seeking 2 or 3 way SEALED DIY project!
NEWBIE: Seeking 2 or 3 way SEALED DIY project!
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 11th January 2018, 02:33 AM   #1
SONDEKNZ is offline SONDEKNZ  New Zealand
diyAudio Member
 
SONDEKNZ's Avatar
 
Join Date: Jul 2013
Location: Auckland
Default NEWBIE: Seeking 2 or 3 way SEALED DIY project!

Hi guys!

I'm seeking DIY SPEAKER (KIT) recommendations.

I've been lurking for years and finally have the time for a speaker project of my own.

Due to my very basic cabinetry skills - and because of my strong preference for the sound of SEALED ENCLOSURE speakers - I'd like to build a very simply 2 or 3 way / sealed speaker.

Wish-list includes: -
  • Sealed enclosure (Non-negotiable)
  • Really extended tops (30kHz or better, if possible)
  • Tuneful base down to 50Hz or better (Not a big bass fan)
  • 90dB or better sensitivity (Preferably 93dB)
  • Prefer 8-ohm impedance (But 4-ohms would do)

Size and proportion-wise, I have a very audio-involved wife who to her great credit does not inflict size restrictions on me. So I don't mind a slightly bigger enclosure like that of an AUDIO NOTE AN-E, etc. Hopefully my speaker will end up looking something like the 8008 CORNER model or a DEVORE ORANGUTAN as shown in the photos below.
(But without the port.)

Budget-wise, I can run to a few thousand or more if need be.

Having had success with building kitset tube amps - (TRANSCENDENT SOUND) - ideally, I'd like to be able to buy all the driver and crossover parts (and perhaps a precut baffle - but not essential...) as part of a pre-proven formula and simply build the basic cabinet to spec and assemble and finish.

The problem for me is that almost every design I find is ported to provide deeper bass. For me, I far prefer less bass with the punchy tuneful sound of a fully sealed enclosure.

To meet my needs, I'm hoping you guys recommend something that is close to a never-fail recipe?

(Really appreciated...)


-Tony (SONDEKNZ)
Auckland, New Zealand.
Attached Images
File Type: jpg BEST SPEAKER LOOK.jpg (420.3 KB, 378 views)
File Type: jpg DEVORE ORANGUTAN.jpg (316.8 KB, 371 views)

Last edited by SONDEKNZ; 11th January 2018 at 02:54 AM. Reason: TYPO
  Reply With Quote
Old 11th January 2018, 03:06 AM   #2
Dave Bullet is offline Dave Bullet  New Zealand
diyAudio Member
 
Join Date: Jan 2002
Location: Wellington, New Zealand
Greetings fellow kiwi.

Feast on some of Troel's projects. I've never built one is the caveat:
DIY-Loudspeakers

If the woofers lend themselves to either ported or sealed enclosures (Driver FS / Qes = ideally < 50 or < 100) then you could run them sealed. Using WinISD or various spreadsheets, you can compare group delay and F3 / tuning impact.

Zaph|Audio has 1 or 2 as well.

Curt Campbell seems to have a following on another forum - some collaborations / projects here:
Speaker Design Works.

Some other completed designs - many larger systems here:
HTGuide Forum!


I'm in the middle of doing a 3 way myself (my own design) - so I wouldn't recommend it :-)
  Reply With Quote
Old 11th January 2018, 06:49 AM   #3
fatmarley is offline fatmarley  England
diyAudio Member
 
Join Date: Aug 2003
Location: Cheltenham
You could build this Seas A26 kit but rather than Aperiodic, you could build It sealed.

According to my sims a sealed box of about 32ltrs should give a similar low frequency response to the aperiodic version (It's hard to say exactly without measurements). A 28ltr sealed box will have a box q (qtc) of around 1 and will have a bit more thump than the larger box.
  Reply With Quote
Old 11th January 2018, 07:18 AM   #4
SONDEKNZ is offline SONDEKNZ  New Zealand
diyAudio Member
 
SONDEKNZ's Avatar
 
Join Date: Jul 2013
Location: Auckland
Dave and Fatmarley

Many thanks for these great thoughts.

(I really appreciate the links too Dave...)

I have drooled over Troels projects forever, but he almost never uses a sealed cabinet approach.

Question: Both of you suggest that I pick a good ported speaker design and simply seal the cabinet - and still expect great sonic results. Surely this puts the entire speaker design at risk?

With this in mind, I have actually tried sealing the port with some of my own (professionally manufactured) ported speakers and the result has typically delivered a very poor outcome.

I suspect - and VERY happy to be wrong about this - that certain tweeters, drivers and speaker designs are specifically engineered with either ported or sealed cabinets in mind; not both.

Thoughts?
  Reply With Quote
Old 11th January 2018, 07:34 AM   #5
fatmarley is offline fatmarley  England
diyAudio Member
 
Join Date: Aug 2003
Location: Cheltenham
The Seas A26 works fine In a sealed box. Aperiodic Isn't ported - rather than add bass, It actually reduces It.
  Reply With Quote
Old 11th January 2018, 07:49 AM   #6
Lojzek is offline Lojzek  Croatia
diyAudio Member
 
Lojzek's Avatar
 
Join Date: Feb 2012
Location: Croatia
Hi Tony, this kit would serve your needs very well and I'd personally choose it for myself if I had a need for one. A very good value for the money.
Zaph|Audio SB12.3 ~ SB Acoustics 12", Dual Midrange, 3-Way
__________________
A good dialogue makes you feel like a changed person, not like you have won or lost the competition.
  Reply With Quote
Old 11th January 2018, 07:51 AM   #7
fatmarley is offline fatmarley  England
diyAudio Member
 
Join Date: Aug 2003
Location: Cheltenham
Here's a calculator to give you a rough Idea - LINK
  Reply With Quote
Old 11th January 2018, 07:52 AM   #8
fatmarley is offline fatmarley  England
diyAudio Member
 
Join Date: Aug 2003
Location: Cheltenham
Quote:
Originally Posted by Lojzek View Post
Hi Tony, this kit would serve your needs very well and I'd personally choose it for myself if I had a need for one. A very good value for the money.
Zaph|Audio SB12.3 ~ SB Acoustics 12", Dual Midrange, 3-Way

Forgot about that one. Good choice
  Reply With Quote
Old 11th January 2018, 08:20 AM   #9
globalplayer is offline globalplayer  Germany
diyAudio Member
 
globalplayer's Avatar
 
Join Date: Oct 2014
Location: =)
B1371 Scan-Speak Kit by Peter Noerbaek - Pair
__________________
◢◣◢◣◢◣◢◣◢◣
  Reply With Quote
Old 11th January 2018, 12:58 PM   #10
Paul Vancluysen is online now Paul Vancluysen  Belgium
diyAudio Member
 
Join Date: Mar 2009
Location: Heusden-Zolder
Hi Tony,
I am prepared to make a complete speaker design for you on paper. I use Leap for my designs and I have a lot of experience with it. You can choose for a passive or active system. I will do it for free, it is always interesting to see a practical realization of something which is designed on paper. Of course, you can choose for an existing design or a kit, that already has been built. But with a new design, you can completely make it like you want...but with more risk. With an existing design, you also have the driver parameter tolerances, that maybe need to be compensated in the filter to realize an optimal result. With the Leap simulation, I have very good results w.r.t. SPL accuracy, but the drivers need to be measured, either on IEC baffle or in the enclosure. Think about it. Maybe you can find some useful information on my website www.vcllabs.com.
Paul
  Reply With Quote

Reply


NEWBIE: Seeking 2 or 3 way SEALED DIY project!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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Newbie seeking DIY speakers for WE91A LetterBeacon Multi-Way 5 3rd July 2012 08:18 AM
Considering PD2450 in a huge sealed box... Seeking bass nirvana :) N4CR Subwoofers 32 16th July 2010 02:43 AM
newbie seeking info about homemade ipod amplifier disti Chip Amps 6 19th September 2007 03:21 PM
Help, serious newbie seeking advice!! redmagicsnake Solid State 1 21st November 2005 03:41 PM


New To Site? Need Help?

All times are GMT. The time now is 08:52 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki