Simple, cheap, and decent TLs? - 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 4th January 2007, 02:40 AM   #1
diyAudio Member
 
Join Date: Jan 2006
Location: Wisconsin....what did you expect?
Send a message via AIM to Spasticteapot
Default Simple, cheap, and decent TLs?

Transmission lines have been employed for ages with fullrange drivers.

Why would'nt they work just as well for standard drivers?

Having tinkered with fullrange drivers, I've found very good performance with a driver placed in a PVC pipe transmission line - treble was less than amazing, but bass and midrange was good.

As a result, I'm looking at building a simple 2-way with a good woofer and good tweeter - yeah, pretty minimalist.

I'm looking at the following drivers:

-Dayton RS125 (fits in 4" pipe, I think)
http://www.partsexpress.com/pe/showd...number=295-370

-Silver Flute W14RC25 (requires 5" pipe - but I live near Madisound!)
http://www.madisound.com/cgi-bin/ind....8160&pid=1074

-Aurasound NS4-255-8D1 (probbably the worst of the lot - but it's easy to mount in a 4" pipe, and shpping is not a cost. )
http://www.madisound.com/cgi-bin/ind...24231&pid=2040

Peerless woofer, unknown model ($10 ea. - CHEAP!)
http://www.madisound.com/cgi-bin/ind...24231&pid=1897

The tweeter of choice is a 27TBFCG, except that they're $32 each - a bit much for a "I'm learning how to do this" pair of speakers. I'd prefer instead to use a cheaper tweeter - the ApexJR ribbon is certianly cheap, but perhaps the Hi-Vi K1 would be less hassle. (I'm open to using almost anything on the Madisound "sale" list.)
  Reply With Quote
Old 4th January 2007, 03:04 AM   #2
MJK is offline MJK  United States
Account disabled at member's request
 
Join Date: Feb 2002
Location: Clifton Park, NY
Quote:
Why would'nt they work just as well for standard drivers?
In some ways I think a TL works better with a two way system. Having a dedicated woofer with a medium Qts value makes the bass stronger then a full range driver which probably has a lower Qts value. My first TL was a two way Focal design and it worked really well, probably better bass then any of my full range drivers speakers I have built since then. I still prefer the full range drivers overall but the Focal two way was very good. I regret having sold that speaker a few years ago.
  Reply With Quote
Old 4th January 2007, 03:42 AM   #3
diyAudio Member
 
Join Date: Jan 2006
Location: Wisconsin....what did you expect?
Send a message via AIM to Spasticteapot
Quote:
Originally posted by MJK


In some ways I think a TL works better with a two way system. Having a dedicated woofer with a medium Qts value makes the bass stronger then a full range driver which probably has a lower Qts value. My first TL was a two way Focal design and it worked really well, probably better bass then any of my full range drivers speakers I have built since then. I still prefer the full range drivers overall but the Focal two way was very good. I regret having sold that speaker a few years ago.


Any comments on the drivers? Which should I use?

(Seeing as how you're the reigning expert on TL speakers, I figure you're the guy to talk to.)
  Reply With Quote
Old 4th January 2007, 06:16 AM   #4
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
The popular use of FRs in TLs is actually a fairly recent phenominum... most classic TLs were multi-ways (3 & 4 way very typical)

From a quick look at the T/S:

the Peerless & dayton Q is kinda high, the Aura probably has too small a Vas, the Silver Flute would be interesting. It isn't going to work in a 5" pipe. A 6" pipe at the minimum... bigger would probably be more appropriate.

Download Martin's tables & plug the numbers in for a ballpark.

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 4th January 2007, 07:19 AM   #5
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
These new squared spiral are interesting

http://www3.ocn.ne.jp/~hanbei/eng-angular.html


This new oem hemp/adire driver seems interesting for TL, but expencive

http://www.rawacoustics.com/item__RA1658_,805.html
  Reply With Quote
Old 4th January 2007, 07:37 AM   #6
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 tinitus
This new oem hemp/adire driver seems interesting for TL, but expencive

http://www.rawacoustics.com/item__RA1658_,805.html
I hadn't realized that those had hemp cones... i have a pair of those.

dave
Attached Images
File Type: gif big vent.gif (5.5 KB, 297 views)
__________________
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 4th January 2007, 07:55 AM   #7
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
looks good - how is the top end FR
  Reply With Quote
Old 4th January 2007, 09:26 AM   #8
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 tinitus
looks good - how is the top end FR

Don't know yet. Haven't listened to them.

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 4th January 2007, 11:22 AM   #9
sreten is offline sreten  United Kingdom
diyAudio Member
 
Join Date: Nov 2003
Location: Brighton UK
Hi,

for the silver flutes use Zaph's design :

http://www.zaphaudio.com/audio-speaker13.html

/sreten.
  Reply With Quote
Old 4th January 2007, 11:33 AM   #10
MJK is offline MJK  United States
Account disabled at member's request
 
Join Date: Feb 2002
Location: Clifton Park, NY
Quote:
Any comments on the drivers? Which should I use?
Sorry, I really don't know anything about any of the drivers that you listed. I can't be of much help in driver selection.
  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
Decent DIY speakers on the Cheap coldcathode Multi-Way 19 16th March 2009 04:46 AM
Decent Cheap 6.5 " FR drivers. dpuopolo Full Range 3 16th September 2007 12:36 PM
Moving to triamp, need decent cheap 3-way active crossover and poweramp advice bikehorn Solid State 5 23rd November 2006 05:28 AM
Simple, Inexpensive, yet Decent Full Range/Single Driver system? dsavitsk Full Range 11 16th August 2006 11:40 PM
simple, cheap, 6L6 amp? help trespasser_guy Tubes / Valves 54 22nd March 2003 03:03 AM


New To Site? Need Help?

All times are GMT. The time now is 04:22 AM.


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