A new midbass horn

murray johnson said:
that last sim is for a longer Hypex type horn. Yours is a tractrix isn't it?
Click to expand...

Yes. If the last simulation is with a longer hypex tipe horn, higher frequency output should be less than with tractrix. The shorter the horn, the higher it goes.

what i can conclude is, that it might be useful to choose a lower crossover point to the midrange channel . My intend was to choose 700hz, but 500hz might be better.

Unfortunately, hornresp does not work on windows xp.Can someone make a simulation for my basshorn ?
Throat size is 25cm x 10cm, lenth 150cm, and mouth 53cm x 105cm.

driver used is a JBL 2206h

Recomended enclosure 28-113 L
Nom. diamerer [inch] 12
Vas [Liters] 62,3
Qts 0,32
Qes 0,34
Qms 4,45
Fs [Hz] 52
Sensitivity [dB] 95
Max Power [W] 600
Lower freq [Hz] 45
Upper freq [Hz] 3500
Rec. Filter freq [Hz] 1500
xmax [mm] 7,62
Moving mass [g] 65
Disp area [m2] 0,055
Disp Vol [cm3] 413
xdamage [mm] 20
Air gap [mm] 8
Coil diameter [mm] 100
Re [ohm] 5,3
Z [ohm] 8
L [mH] 1,5
Bl [Tm] 18,1
Magnetic flux [Wb]
Flux density [T]
Outer diam. [mm] 311
Bolt circle [mm] 294
Cutout [mm] 280
Weight [Kg] 7,8
Depth [mm] 127
Driver volume [Liters] 4,1


Angelo
 
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Your bass horn is a folded (snailshell) type design isn't it? I'm not sure how relevant modelling it as a straight horn would actually be. I'll have a look later when I've more time. (BTW Hornresp does work on my XP equipped computer)
 
murray johnson said:
Your bass horn is a folded (snailshell) type design isn't it? I'm not sure how relevant modelling it as a straight horn would actually be. I'll have a look later when I've more time. (BTW Hornresp does work on my XP equipped computer)
Click to expand...

I think for LF, it's fine. I wold guess that it's the HF that will be curtailed along with some added ripples from the "pipe" effect of the segments...

Works on XP for me too...
 
when i unzip and try to open hornresponse, i am getting a error message : error of archive. it was not possible to find VBRUN300.DLL
 
i_should_coco said:
You need to install Visual basic runtime:

http://support.microsoft.com/kb/196285
Click to expand...

great. thanks. it's running now. What i do not understand at you simulation is With 100cm^3 throat chamber, and 1l throat chamber. In the second of your hornresp simulation, the response is a littlebit more linear between 150hz and 400hz. I have made a drawing below, to show how the horn throat will be , and dimensions. 1l throat chamber seems quit big to me, it will be in reality much smaller.

Angelo

lowermidrangehornexit.jpg
 
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