How do you compensate for a fold in a TL?
 User Name Stay logged in? Password
 Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read Search

 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
 18th November 2012, 02:29 PM #1 knifeinthesink   diyAudio Member   Join Date: Oct 2005 Location: Guelph, Ontario How do you compensate for a fold in a TL? I have a TL tower that I don't have room for anymore so I'm building a new cabinet with a folded line. What I'm not sure about is how to compensate the length for the fold since one wall becomes significantly longer then the other. Its a 10:1 taper over 38 inches so it seems to me the fold will be more of any issue since the long side of the folded area will be more than a quarter of the over all line length. How tolerant of deviations from the calculated length are TLs anyway? If I have to I will use a curve but that will make construction far more time consuming so I'd prefer to keep it simple. Thanks, David
 18th November 2012, 03:20 PM #2 Melo theory   diyAudio Member     Join Date: Sep 2009 Location: Gulfport fl. Well, somebody please correct me if I'm wrong... I believe you are supposed to measure it right through the middle of the line. It being a middle measurement, the short inside of the fold will compensate for the longer outside of the fold. __________________ I LIKE YOU
 18th November 2012, 08:17 PM #3 Keriwena   diyAudio Member   Join Date: Feb 2010 Location: in half space We've had some rather inconclusive discussion about this in the past. Some visualise it as a horn, where you have a coherent wavefront that needs to turn a corner. Because of the length of the waves of interest (long), I see it as two adjacent pipes, one of which loads the other. At any rate, given the aspect ratio of your pipe, you're right - folding it will be problematic. Using the geometry display of Leonard Audio's program, it actually looks like most of the taper may end up in the fold. (I'm just guessing at your start and end areas, though.) TLs are quite conscious of how long they are, but they are fairly forgiving of awkward bulges. They don't get too far off, even if there's a straight section in the middle of the taper, as long as the length remains the same. And yes, measure down the middle for a reasonable approximation.
tinitus
diyAudio Moderator R.I.P.

Join Date: Nov 2005
Quote:
 Originally Posted by kifeinthesink If I have to I will use a curve ......
with TL I dont think it matters at all
though, a sharp bend might act different
personally, if 2 lines with one fold, I would simply use the entire length x 2, top to bottom, and not think more about it
I dont think you can 'predict' its behaviour 100% anyway

 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 Rules
 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Site     Site Announcements     Forum Problems Amplifiers     Solid State     Pass Labs     Tubes / Valves     Chip Amps     Class D     Power Supplies     Headphone Systems Source & Line     Analogue Source     Analog Line Level     Digital Source     Digital Line Level     PC Based Loudspeakers     Multi-Way     Full Range     Subwoofers     Planars & Exotics Live Sound     PA Systems     Instruments and Amps Design & Build     Parts     Equipment & Tools     Construction Tips     Software Tools General Interest     Car Audio     diyAudio.com Articles     Music     Everything Else Member Areas     Introductions     The Lounge     Clubs & Events     In Memoriam The Moving Image Commercial Sector     Swap Meet     Group Buys     The diyAudio Store     Vendor Forums         Vendor's Bazaar         Sonic Craft         Apex Jr         Audio Sector         Acoustic Fun         Chipamp         DIY HiFi Supply         Elekit         Elektor         Mains Cables R Us         Parts Connexion         Planet 10 hifi         Quanghao Audio Design         Siliconray Online Electronics Store         Tubelab     Manufacturers         AKSA         Audio Poutine         Musicaltech         Aussie Amplifiers         CSS         exaDevices         Feastrex         GedLee         Head 'n' HiFi - Walter         Heatsink USA         miniDSP         SITO Audio         Twin Audio         Twisted Pear         Wild Burro Audio

 Similar Threads Thread Thread Starter Forum Replies Last Post RAW CSS 11 14th June 2013 02:54 AM RAW CSS 2 28th October 2012 11:43 PM Konrad Subwoofers 3 9th December 2004 05:57 PM

 New To Site? Need Help?

All times are GMT. The time now is 03:59 AM.