Frugel-Horn Mk3 Builds & Build Questions - Page 10 - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

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 16th November 2010, 07:54 PM   #91
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally Posted by chrisb View Post
cut plan for 5x5ft Baltic birch on page 7 of FH-Mk3-betaDoc-251010.pdf[
Cut plans only done for 15mm so far.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 17th November 2010, 12:08 PM   #92
diyAudio Member
 
Join Date: Apr 2006
Location: Reykjavík
Some random thoughts:

It seems to me that stuffing the horn is done to A) reduce ripple, B) reduce bass.

Given that the Alpair 7 needs quite a bit of stuffing to reduce the bass, would it make sense to stuff enough to manage ripple, and then use EQ to reduce the bass? The desired positive effect would be to minimize cone excursion - does that make sense? I.e. "overgaining" the bass in the horn, given a certain amount of excursion, and then taking the output down by altering the input signal. Could this help with power handling, excursion, and dynamics?
  Reply With Quote
Old 17th November 2010, 04:12 PM   #93
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
That may well work. Worthy of an experiment.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 17th November 2010, 04:58 PM   #94
diyAudio Member
 
Join Date: Apr 2006
Location: Reykjavík
Quote:
Originally Posted by planet10 View Post
That may well work. Worthy of an experiment.
Precisely! Thanks for the reply. I've had a lot of fun - and some nice results too - with high-quality digital EQ plugins with the Cyburgs Needles. This case should be even more interesting - playing with abundance is a timeless source of fun.
  Reply With Quote
Old 17th November 2010, 06:03 PM   #95
badman is offline badman  United States
diyAudio Member
 
badman's Avatar
 
Join Date: Sep 2003
Location: Sunny Tustin, SoCal
Quote:
Originally Posted by planet10 View Post
That may well work. Worthy of an experiment.

dave
An RC filter (or even just a first-order highpass) on the speaker could accomplish this- like a reversed BSC circuit. This would have the advantage of providing rumble filtering and giving the amp a nice high load to (not have to) work against in the bass.
__________________
I write for www.enjoythemusic.com in the DIY section. You may find yourself getting a preview of a project in-progress. Be warned!
  Reply With Quote
Old 24th November 2010, 02:02 PM   #96
diyAudio Member
 
Join Date: Apr 2006
Location: Reykjavík
Regarding joints - I built my Needles just by gluing together flat pieces of wood. No reinforcement of joints. Are the Frugel-Horn mark-threes built with more complex joint work?
  Reply With Quote
Old 24th November 2010, 04:45 PM   #97
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Rarely do we use anything other than butt joints (mostly only on the bamboo ply builds, and that is only to properly take advantage of the end grain).

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 24th November 2010, 07:38 PM   #98
diyAudio Member
 
Join Date: Mar 2010
Location: Lake Superior
Quote:
Originally Posted by kristleifur View Post
Regarding joints - I built my Needles just by gluing together flat pieces of wood. No reinforcement of joints. Are the Frugel-Horn mark-threes built with more complex joint work?
I wondered about that too. Butt joints work fine. Take a couple scraps and butt joint them with yellow carpenters glue over night. In the morning try breaking them apart ( you won't be able to ). Then consider the glued area of your build.
  Reply With Quote
Old 24th November 2010, 07:54 PM   #99
diyAudio Member
 
Join Date: Apr 2006
Location: Reykjavík
Quote:
Originally Posted by motosapien View Post
Take a couple scraps and butt joint them with yellow carpenters glue over night. In the morning try breaking them apart ( you won't be able to ).
I know what would happen - the wood breaks before the glue does

Got it. Thanks guys!
  Reply With Quote
Old 24th November 2010, 10:54 PM   #100
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally Posted by motosapien View Post
I wondered about that too. Butt joints work fine. Take a couple scraps and butt joint them with yellow carpenters glue over night. In the morning try breaking them apart ( you won't be able to ). Then consider the glued area of your build.
Quote:
Originally Posted by kristleifur View Post
I know what would happen - the wood breaks before the glue does

Got it. Thanks guys!

well, of course even today's "miracle" wood adhesives need a pair of decent clean mating surfaces for maximum strength bond
__________________
now on sabbatical
  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
Frugel-Horn Mk3 planet10 Full Range 1361 Today 08:04 PM
Frugel-Horn Mk3 flat-paks planet10 Planet 10 hifi 462 3rd July 2014 01:56 AM
Frugel-Horn Mk3 Auditions planet10 Full Range 24 8th June 2012 08:18 PM
"straight" frugel horn mk3 mahleriana Full Range 10 15th April 2011 02:28 AM
My Frugel-Horn Build italynstylion Full Range 130 22nd June 2010 01:24 AM


New To Site? Need Help?

All times are GMT. The time now is 09:32 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