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Acoustic Elegance Group Buy Build Thread


Guest Peter the Greek

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Guest Peter the Greek

G’day all,

 

Following the outstandingly successful group buy (thanks by the way!), I thought it would be nice to have a thread dedicated to AE builds.

 

So what are you all planning?

 

I am going to do the following:

  • 3 way LCR’s with TD10S (60-300hz), TD6m (300-3000hz), and the Mundorf AMT164U2.1 Tweeter
  • 4 surround speakers using the TD8X (design up in the air at present – likely a di-pole (yeah, yeah, go ahead, have another swipe at me))
  • 2 subs with TD15H+ and 2 PR’s each (tuned to 16hz)
  • 3 “balancing†subs with TD15H+ sealed

All of the above will likely be driven by QSC DCA Amps and a QSC DCP300 doing all the crossover/dsp/eq  work……..I can’t afford the electronics at the moment, so over the next 12 months or so I will be finishing the room and building the cabinets only……first in, last out I suspect

 

Cheers,

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This is a sealed enclosure midbass with the Acoustic Elegance TD15M

 

Crossover points at approximately 50 and 400 Hz  (24 dB / octave)

The group delay chart is for the box only  (not filters)

 

1w = 96dB = 0.6mm

25w = 111dB = 3.3mm   (Peak SPL)

85w = 116dB = 6mm   (Xmax)

250w = 121dB = 10mm   (Xmech)

post-108814-0-27046700-1396348393_thumb.

post-108814-0-30064800-1396348411_thumb.

post-108814-0-03448000-1396348695_thumb.

Edited by davewantsmoore
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@ Dave - stop using WinISD.  The software has multiple errors in it that the developers won't fix as they stopped maintaining the code many years ago.  For one, the additional resistance you put in doesn't correctly affect the parameters of the driver.  The same goes for the increased voice coil temperature, which by the way has a much greater effect on the alignment than the cable resistance.  There are e number of really good packages available - try LSPCad or LEAP Enclosure Designer, or even Hornresp paired with a spreadsheet for correcting the parameters for additional resistance and voice coil temperature.

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Guest Peter the Greek

I'll send you a txt of how hard I can get :eek:  :D

 

 

svenr,

 

i just want to say that your avatar is really nice, inspiring and romantic at the same time :)

 

cheers

Henry

 

......something odd is going on in this thread ;)

Edited by Peter the Greek
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Stop using WinISD.  The software has multiple errors in it that the developers won't fix as they stopped maintaining the code many years ago.  For one, the additional resistance you put in doesn't correctly affect the parameters of the driver.  The same goes for the increased voice coil temperature, which by the way has a much greater effect on the alignment than the cable resistance.  There are e number of really good packages available - try LSPCad or LEAP Enclosure Designer, or even Hornresp paired with a spreadsheet for correcting the parameters for additional resistance and voice coil temperature.

Hi Sven

Given we are doing the DIY thing and looking at using free software, it would be good if you could point me/us to a tutorial on using hornresp in such an application.  I don't think it's right for this thread but if you could post in a new thread that would be appreciated.

Thanks!

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Hi Sven

Given we are doing the DIY thing and looking at using free software, it would be good if you could point me/us to a tutorial on using hornresp in such an application.  I don't think it's right for this thread but if you could post in a new thread that would be appreciated.

Thanks!

 

If you're looking for closed/vented box with hornresp, then start here:  http://www.hometheatershack.com/forums/diy-subwoofers-general-discussion/36532-hornresp-dum-hmm-everyone.html#post324329

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Thanks but that doesn't explain the effects of additional resistance and voice coil temperature rise that Sven pointed out. 

@Sven  - how do I progress to including these parameters?

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Guest Peter the Greek

3 of these beauties turned up a few days ago (straight to the cupboard for about a year....but that's cool, got em now)

 

140418AMTFront_zps26ed4964.jpg

 

140418AMTBack_zps3ee7063c.jpg

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Hornresp paired with a spreadsheet for correcting the parameters for additional resistance and voice coil temperature.

 

Thanks but that doesn't explain the effects of additional resistance and voice coil temperature rise that Sven pointed out.   How do I progress to including these parameters?

 

 

You must calculate how the temperature rise / resistance will change the parameters.

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