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

Linkwitz Hope
Linkwitz Hope
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
Thread Tools Search this Thread
Old 20th February 2013, 06:27 PM   #1
GaryQui is offline GaryQui  United States
diyAudio Member
Join Date: Dec 2007
Default Linkwitz Hope

Peace to all !!

Yes, I'm another builder wanting to copy Mr. Linkwitz Pluto design.
This is my first major speaker build.

I've always wanted to build a Linkwitz design since I saw
his Phoenix, but it was very expensive and complicated for me.

Now I have seen people like Gainphile, Davey, rich31td, and many
others build this basic design with a miniDSP board.

So I hope to converse and gain help from some of you who
have built this design.

My stumbling blocks are...

Building an encasing square box around the PVC tube.
(i know it would be easier to just leave the tube alone,
but I really like what others have done with the concept)
The diagonal really gets out of hand when trying to encase
a tube with mdf. Diffraction by the numbers indicate a
frequency of around 650hz or so for 6 - 7 inch diameter,
but I've read since its radiating at 90 degrees so it may
not be a huge problem.
(Yes, i've been reading your posts, sirs )

Another about the case, would be vibrations exciting
the casing panels from the bass frequencies.
I could isolate the casing with firm foam at the top
and bottom and stuff the remaining voids with fill.
The tube of course, per Mr. Linkwitz does not radiate
very much vibration so the panels, not exposed to pressure
from the drivers, would not re-radiate, but the actual
output from the bass driver into free air might excite
the panels by air coupling. I don't know...

Of course I've read posts discussing the miniDSP programming
but it hurts my head to a degree.
Davey reports using simple LR crossovers, but some get
into bi-quad programming, so I don't know if I need bi-quad
or not.

I am only trying to get 80% of the sound quality of Mr. Linkwitz's
design, since the cost of the ASP and such is beyond my means.
Mr. Linkwitz is very meticulous and has resources such as a vast
experience in listening to great designs and education far
beyond me. So I copy.

Any discussion or help would be greatly appreciated !!!
  Reply With Quote


Linkwitz HopeHide 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
Is there any hope? KVP Class D 6 29th October 2012 02:13 PM
Hey All, hope to get know some of you jcricket Introductions 2 31st December 2011 06:19 PM
The hope for dope ironwoods Multi-Way 1 2nd August 2005 12:27 PM
Hi all, I hope to be useful here x-pro Introductions 6 25th April 2003 12:57 PM
I hope that it's not just me! RobPhill33 Parts 0 7th December 2002 06:14 PM

New To Site? Need Help?

All times are GMT. The time now is 11:37 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio