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 6th May 2008, 02:49 PM   #1
diyAudio Member
 
Join Date: Feb 2007
Location: Rome
Default QWTL and Half WTL in the same BIB cabinet

Hi,
this is my first post, i'm pleased to write into this amazing forum. My current system is composed by marants CD 6000 OSE (I'd like to upgrade), trends audio 10.1; Triangle Titus 202.

my goal is to buid by myself a speaker able to cover 15K - 45 Hz (in the real world at -0 db) with SPL = 92 db 1W/1m at least

my idea is to use "Bigger Is Better" design with two drivers with active xover:
the first one: fullrange, untill 90 hz using the BIB cabinet design
the second one: woofer or mid woofer from 90 to 45 hz in the same BIB cabinet that will operate as quarter wave transmission line !

the stuffing material will be add empirically

what do you think about it?
is it possible or is just a wired idea?
and what about the drivers?

thanks,
feel free to beat me for my spelling and grammar.

Tiziano
  Reply With Quote
Old 7th May 2008, 02:11 PM   #2
diyAudio Member
 
Join Date: Feb 2007
Location: Rome
I know, this project doesn't interest the major part of you, the thing is i'm looking for sense of weight and power that lack in my system, and I'd like to been iniziate to diy speaker.

I'll find new ideas.
bye Tizio
  Reply With Quote
Old 7th May 2008, 04:22 PM   #3
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
Give people chance. It's the middle of the week.

I can't actually follow what you're trying to say too well. I think you're looking at making a 2 way BIB with a 90Hz XO point. Is that it? No reason why it shouldn't work. BTW -the BIB is technically a horn, not a TL.
__________________
Community site www.frugal-horn.com Commercial site www.wodendesign.com
  Reply With Quote
Old 7th May 2008, 08:29 PM   #4
diyAudio Member
 
Join Date: Mar 2007
Location: Cleveland, Ohio, USA
Quote:
Originally posted by Scottmoose
Give people chance. It's the middle of the week.

I can't actually follow what you're trying to say too well. I think you're looking at making a 2 way BIB with a 90Hz XO point. Is that it? No reason why it shouldn't work. BTW -the BIB is technically a horn, not a TL.
If I read correctly, Tizio seeks to use both drivers in the same enclosure/line . . . The line would seem very big to the Fullrange (BIB sized), but the same line will function as a more typically sized TL for the sub driver. I'm not sure where the drivers would be placed to achieve this.

Tizio, am I close? A drawing would really help.

I can't imagine this working well; Either driver could perhaps use the line/horn effectively, but NOT at the same time . . . the displacement created by the sub would prevent the FR from being able to drive the line at all. Your fullrange could even be damaged by pressure in the line from the sub.

Unless someone like Tom Danley is involved . . .

It also seems odd to use a BIB cab for a driver that will not be used below 90 Hz. I would vote to simply put the FR in its own enclosure. Or even no enclosure - open baffle!

Neat idea, though.

--- Mark
  Reply With Quote
Old 8th May 2008, 03:49 AM   #5
GM is offline GM  United States
diyAudio Member
 
GM's Avatar
 
Join Date: Jun 2003
Location: Chamblee, Ga.
Quote:
Originally posted by Tubamark

I can't imagine this working well; Either driver could perhaps use the line/horn effectively, but NOT at the same time . . .
IIRC I've discussed this layout for a BIB, but can't remember in which thread. Anyway, it's based on this rather successful DIY design: http://web.archive.org/web/200705092...io/DIYBX1.html

GM
__________________
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
  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
Half Chang cabinet question JC951t Full Range 0 4th January 2009 02:45 PM
Half Calhoun? Telrab Full Range 11 2nd May 2008 11:40 PM
Half a SoZ? Fuling Pass Labs 9 14th January 2005 10:58 AM
6 And A Half Weeks ? mrfeedback Everything Else 9 27th August 2002 03:16 AM
half -ife human prototype Tubes / Valves 1 31st July 2001 02:27 AM


New To Site? Need Help?

All times are GMT. The time now is 09:23 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