Speakerplans.com Forums : TH-Mini - tapped horn - by Danley Sound Labs http://forum.speakerplans.com/ Tue, 21 May 2013 10:45:18 +0000 Tue, 09 Nov 2010 06:14:43 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 10.15 360 forum.speakerplans.com/RSS_post_feed.asp?TID=19409 <![CDATA[Speakerplans.com Forums]]> http://forum.speakerplans.com/forum_images/splans.gif http://forum.speakerplans.com/ <![CDATA[TH-Mini - tapped horn - by Danley Sound Labs : Nice ! Really impressive,is...]]> http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post457479.html#457479 Author: martinsson
Subject: 19409
Posted: 09 November 2010 at 6:14am

Nice !

Really impressive, is the design open to the public to take part of on these boxes ?
(sorry just saw the link, never mind).
 
I have a thought, or maybe more of a question when looking at the picture above, regarding the initial chamber, cone side, how did you manage the risk for compression distortion due to a what seems like to narrow S2 surface area when operating at higher levels, it seems borderline to small ? (but i'm sure you have thought of this).
 
The rule of thumb goes something like S2=0.5xsd, but this is not carved in stone so to speak, and it is also driver dependent, i also think this may influense the designs tolerance towards what drivers can be used in it.
 
My reson for asking is that this was of great importance to me, and it is one paramteter that has alot of followers in the logic of tapped horn design, a smaller S2 surface area may open the door for a more compact design all togheter. 
 
again, really nice, thanks for sharing.


Edited by martinsson - 09 November 2010 at 6:15am]]> Tue, 09 Nov 2010 06:14:43 +0000 http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post457479.html#457479 <![CDATA[TH-Mini - tapped horn - by Danley Sound Labs : What is the dimensions of the...]]> http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post457468.html#457468 Author: mmetro1990
Subject: 19409
Posted: 09 November 2010 at 4:52am

What is the dimensions of the 15" version? ^^]]> Tue, 09 Nov 2010 04:52:34 +0000 http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post457468.html#457468 <![CDATA[TH-Mini - tapped horn - by Danley Sound Labs : 15&#034; version ]]> http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post453369.html#453369 Author: TDA-Audio
Subject: 19409
Posted: 29 October 2010 at 10:28pm

15" version

]]> Fri, 29 Oct 2010 22:28:30 +0000 http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post453369.html#453369 <![CDATA[TH-Mini - tapped horn - by Danley Sound Labs : Tda when you get a chance see...]]> http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post415818.html#415818 Author: Jason kiDD
Subject: 19409
Posted: 13 July 2010 at 2:34pm

Tda when you get a chance see if you can get some plots done on the Mini-12 stecks.. I like the layout! Thanks..]]> Tue, 13 Jul 2010 14:34:16 +0000 http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post415818.html#415818 <![CDATA[TH-Mini - tapped horn - by Danley Sound Labs : FlipC wrote:I will wait on...]]> http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post410670.html#410670 Author: darkmatter
Subject: 19409
Posted: 28 June 2010 at 3:51pm

Originally posted by FlipC FlipC wrote:

I will wait on the math of that TDA.

See a few issues.
Negative taper at mouth.  Cancellation of the reverse wave and the forward wave.  Doable but not with that exact layout.


Are any of these a definite problem though? Seems like resonances would be smoothed by using two horns of very slightly different dimensions. Distortion peaks might also be wider but smaller.

Might not be an absolutely optimal layout but I don't think there'd be serious issues.

For tapped horns a push-pull configuration seems to make more sense. Reduces distortion, smooths BL curve, and with the right sort of loading might help keep the drivers intact at high excursion.

]]> Mon, 28 Jun 2010 15:51:55 +0000 http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post410670.html#410670 <![CDATA[TH-Mini - tapped horn - by Danley Sound Labs : steckpowered  by B&amp;C 12tbx100high...]]> http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post410510.html#410510 Author: TDA-Audio
Subject: 19409
Posted: 28 June 2010 at 8:31am

steck


powered  by B&C 12tbx100


high pressure in stack

band singl 48 hz

steck  40hz 

]]> Mon, 28 Jun 2010 08:31:29 +0000 http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post410510.html#410510 <![CDATA[TH-Mini - tapped horn - by Danley Sound Labs : So you built one with this layout...]]> http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post388257.html#388257 Author: FlipC
Subject: 19409
Posted: 22 April 2010 at 7:53am

So you built one with this layout ?


If so please post pic and some data.

If you built the single 12" you miss understood. (though still post some pics!)
I was referring to the dual layout he has in the pic posted above.  90 degree's isn't anything at low freq. but 180 without anything to tell it to go 180 is another story.

TDA - where you at?
You using a CNC or what?

]]> Thu, 22 Apr 2010 07:53:02 +0000 http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post388257.html#388257 <![CDATA[TH-Mini - tapped horn - by Danley Sound Labs : FlipC wrote:I will wait on...]]> http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post387386.html#387386 Author: 510
Subject: 19409
Posted: 19 April 2010 at 10:07pm

Originally posted by FlipC FlipC wrote:

I will wait on the math of that TDA.

See a few issues.
Negative taper at mouth.  Cancellation of the reverse wave and the forward wave.  Doable but not with that exact layout.

Have you built and measured your 12" version TDA?
Also do you use a CNC ?
i have no problem with mine at all the bass response is great, i use a jig to cut all parts remember all the internal parts are cut off one peice of plyboard with a single mesurment  just different lengths have fun with the maths i have the working productsLOL]]> Mon, 19 Apr 2010 22:07:40 +0000 http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post387386.html#387386 <![CDATA[TH-Mini - tapped horn - by Danley Sound Labs : I will wait on the math of that...]]> http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post387016.html#387016 Author: FlipC
Subject: 19409
Posted: 19 April 2010 at 7:12am

I will wait on the math of that TDA.

See a few issues.
Negative taper at mouth.  Cancellation of the reverse wave and the forward wave.  Doable but not with that exact layout.

Have you built and measured your 12" version TDA?
Also do you use a CNC ?
]]> Mon, 19 Apr 2010 07:12:59 +0000 http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post387016.html#387016 <![CDATA[TH-Mini - tapped horn - by Danley Sound Labs : brilliant! keep us updated, sound...]]> http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post386902.html#386902 Author: bitzo
Subject: 19409
Posted: 18 April 2010 at 7:54pm

brilliant! keep us updated, sound very interesting.]]> Sun, 18 Apr 2010 19:54:03 +0000 http://forum.speakerplans.com/thmini-tapped-horn-by-danley-sound-labs_topic19409_post386902.html#386902