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Time for a Build HDT questions (Read 2692 times)
dbloudharleys
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Time for a Build HDT questions
01/18/15 at 03:48:36
 
Fixing to put together 2 pairs of HDT's one for me one for a friend.
I have already built a wicked one for those of you that havent
built one I suggest you do if you can, it is one nice cabinet for subs.

From what I can tell off the HDT down loadable  plans and reading some of the forum posts is the placement of the speaker the inside oval ports and the passives are all set to 9 inches off the top of the cabinet to the centers.
The rubber bumpers for the top removable lid is 3/8 tall.
Please forgive my ignorance but why is that lid removable?
I have to be missing something on that .
                           
                         Also I was going to use the eggcrate mattress topper from walmart for the sound dampening would there be a
difference between that and acoustic eggcrate ?
                           And for the rest of the cabinet I was going to use
dyna mat would this be over kill ?
                           On the ovals we use a drill but around the hole for the port is this so the jagged edge will break up the standing waves or
keep the port from chuffing?
                              I have also noticed the use of fasteners is
a Big no no . I think I read it was because the fasteners attenuate
differently than the wood but the different wood will also do the same thing mdf verses plywood verses particle board, even different types of glues.
When I say a fastener I mean a nail from a finish gun. Using the appropriate fastener in the right place till glue dries would that really affect the tuning of the box ? I wonder because with all the dampening that is being placed in the box would not  the tuning be with the ports and the passives ?   Again please forgive my ignorance I do not know
just asking after all knowledge is power.
I have all the pieces cut out the edges of the cabinet are going to be
zebra wood with the main body of cabinet being maple.
JUst fixing to to start cutting all the ports and hole saw for the pvc ports.  
Thanks for any responses .
ZYGI any toughts. Smiley

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ZYGI
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Re: Time for a Build HDT questions
Reply #1 - 01/18/15 at 23:17:57
 
dbloudharleys

Yes, all mentioned are 9" down from the top of the cabinet...that would put the inside ovas down 8-1/4" from the top of their respective pieces.

I wouldn't say the use of fasteners is taboo, I use them all the time! However the use of fasteners along the front and back side joint (where the sides meet the fronts) wouldn't be good if you were to use the 3/4" round over I'd recommended on the four corners.

The use of fasteners top bottom and the like is fine.

Rubber bumpers don't make good fasteners....No the rubber bumpers help to damp out resonances, attaching the top would negate that.

You're better off with acoustic egg crate  foam..

Happy building.
ZYGI
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dbloudharleys
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Re: Time for a Build HDT questions
Reply #2 - 01/22/15 at 22:47:33
 
Thank you ZYGI .
That cleared a few things up for me .
I will post some pics up of the build .
It will take some time with family and just plain life biding for time .
I am probably doing this backwards but am building cabinets
And the going after the amp. Lol
Regards
Dbloudharleys
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dbloudharleys
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Re: Time for a Build HDT questions
Reply #3 - 01/31/15 at 21:33:21
 
Trying to post some pics kinda tough even a regular
post is a pita, some error message keeps appearing.
I will keep trying so others will have some pics to go off of.
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dbloudharleys
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Re: Time for a Build HDT questions
Reply #4 - 01/31/15 at 21:34:22
 
Now trying to get my 4 or 5 posts so I can post pics.
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dbloudharleys
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Re: Time for a Build HDT questions
Reply #5 - 01/31/15 at 21:35:25
 
now going to try and post pics again.
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dbloudharleys
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Re: Time for a Build HDT questions
Reply #6 - 01/31/15 at 21:46:25
 
jpghttp://i577.photobucket.com/albums/ss214/dbloudharleys/DSC00915.jpg?t=1422652..." alt="" title="" border="0" />
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dbloudharleys
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Re: Time for a Build HDT questions
Reply #7 - 01/31/15 at 21:49:15
 
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dbloudharleys
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Re: Time for a Build HDT questions
Reply #8 - 01/31/15 at 21:53:32
 
jpghttp://i577.photobucket.com/albums/ss214/dbloudharleys/DSC00917.jpghttp://i57..." alt="" title="" border="0" />
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dbloudharleys
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Re: Time for a Build HDT questions
Reply #9 - 01/31/15 at 21:56:52
 
above two pics are zebra wood edge on maple for front panel.
other pic is for back panel with maple edge
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dbloudharleys
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Re: Time for a Build HDT questions
Reply #10 - 01/31/15 at 21:58:57
 

X pieces for the center section.
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dbloudharleys
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Re: Time for a Build HDT questions
Reply #11 - 01/31/15 at 22:00:48
 

port tube section with holes
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dbloudharleys
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Re: Time for a Build HDT questions
Reply #12 - 01/31/15 at 22:02:30
 
and lastly port tubes installed.
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ZYGI
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Re: Time for a Build HDT questions
Reply #13 - 03/26/15 at 13:37:08
 
Any more progress on the build?

Or...the HDT's are finished and too busy listening to post!

Zygi
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