TL-design box for W5-1611sa - Page 4 - diyAudio
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Old 15th April 2013, 08:35 PM   #31
Henkjan is offline Henkjan  Netherlands
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Quote:
Originally Posted by chazdrumzalot View Post
...And here it is. 1/5 taper, 43hz tuning. Very compact albeit deep. A SUPER XL desktop TL, as it were.
so let's see what happens if we simply half the depth (and thus half the cross section of the line incl port):
W5-1611 in 43Hz TL - half the depth.png
(also the amount of stuffing half)
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Old 16th April 2013, 12:25 AM   #32
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Henkjan, many thanks to you for running those simulations. The 5db dip at 300hz seems too deep and broad to make this a really good design; will changing the taper of the TL have any significant effect on that? If not, maybe I'll still give this a try just to compare it to my DBR design.
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Old 16th April 2013, 02:20 PM   #33
Henkjan is offline Henkjan  Netherlands
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1st: in real life, these dips will be less than simulated.

if the taper is increased, then the line length will decrease (for a given tuning) and the frequency of the dip increase, increasing the effectiveness of the stuffing in eliminating the dip. lower tuning will have an effect in the same direction. I'll do some additional runs later in the week.
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Old 16th April 2013, 04:00 PM   #34
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Perhaps 43hz is a little too ambitious for a tapered line. Maybe a higher tuning is the way to go, say 48 or 50hz?

By the way, when I play around with the worksheets (in this case, the W5 driver with 50hz tuning in various iterations) I tend to get cabinets that are very short and deep, sometimes deeper than they are tall. changing the taper doesn't seem to do much. Am I doing something wrong?
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Old 16th April 2013, 06:08 PM   #35
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Here is a superb Enclosure for CHP and Alpair7 etc.

Die "Point Seventy" mit dem CHP70 goes "Fuzzy" - DIY-HIFI-Forum
http://www.diy-hifi-forum.eu/forum/s...ead.php?t=6360
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Last edited by DYNABLASTERTUNERS; 16th April 2013 at 06:10 PM.
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Old 17th April 2013, 04:24 AM   #36
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Yes, you've both made good points; that dip is probably not so bad. Maybe I'll go ahead and try this design without any adjustments.
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Old 17th April 2013, 03:13 PM   #37
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Quote:
Originally Posted by DYNABLASTERTUNERS View Post
I made a mistake, don't know why I have posted that in this thread Can mods please transfer this to some thread with CHP or Alpair?
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Old 17th April 2013, 03:23 PM   #38
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That's funny, I thought you posted it to demonstrate that there are other good enclosure designs with midrange dips.
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Old 18th April 2013, 07:35 AM   #39
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That dip is irelevant
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Old 3rd July 2013, 11:20 AM   #40
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Default Gonna have a crack at the TABAQ

I've got my w5 TBs and my front and sides cut didn't have enough off cut for the top and bottoms will need another trip to the hardware store

My local only had 16 mm MDF so I made the necessary adjustments to keep the same internal dimensions

Question will it effect the boxes tuning if I rounded the port opening and front edges asthteticly I think it would be better

What about stuffing it mentioned it need some in the top third what would be best to use
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