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Latest sealed sub complete...


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25 replies to this topic

#1 of 26 OFFLINE   TerryC

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Posted March 26 2001 - 06:13 PM

Here is my latest sub. It's 3.88ft3 sealed. Uses 3/4 inch MDF all around and doubled up for front baffle. Has two internal braces. Has Formica Gloss black Laminate and Parts Express Black Chrome Coned Feet.

I have yet to listen to it in its completed form but the prototype sounded wonderful. If you do a search on my name you'll be able to pull up some RTA graphs as well on the Prototypes in room response that I did a few weeks back.

Posted Image

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Terry

#2 of 26 OFFLINE   Julian Data

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Posted March 26 2001 - 08:17 PM

Terry, I can't get the pics to come up. What driver are you using? Julian

#3 of 26 OFFLINE   Jack Gilvey

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Posted March 26 2001 - 08:18 PM

Damn, Terry , I was all excited about seeing it... Posted Image

(ah, pictures fixed...)
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#4 of 26 OFFLINE   Magnus Lindqvist

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Posted March 26 2001 - 09:19 PM

This should work...
Glossub
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#5 of 26 OFFLINE   Kevin Kloet

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Posted March 26 2001 - 09:32 PM

Blast!!!! I about to start a sealed sub... I wanted to see the picks...

#6 of 26 OFFLINE   TerryC

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Posted March 26 2001 - 09:50 PM

Used my @home webspace instead. It uses a Tempest Driver. If I did it over again I'd use the Satin black Formica instead only because of the finger prints. This would go very well with some DefTech speakers though. Regards Terry

#7 of 26 OFFLINE   Dean Cooper

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Posted March 26 2001 - 09:55 PM

Looks damn nice Terry! Congrats on such a sweet looking and I'm sure sweet sounding sub. Dean ------------------

#8 of 26 OFFLINE   frank manrique

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Posted March 26 2001 - 09:57 PM

TerryC, Man, what a beautiful job! Congrats... Have you measured it yet? -THTS

#9 of 26 OFFLINE   Magnus Lindqvist

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Posted March 26 2001 - 10:00 PM

Well done Terry! Posted Image Posted Image
Is the laminate joints butt end?,how did you trim them??

#10 of 26 OFFLINE   Julian Data

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Posted March 26 2001 - 10:07 PM

Great job! Posted Image

Can you explain the process of adding the laminate?

BTW, how much does it weigh?


Julian

#11 of 26 OFFLINE   TerryC

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Posted March 26 2001 - 10:12 PM

Magnus,

Butt joined, laminate trimmer on router for a 90 degree flush cut and then filed on a 45 degree angle with a plastic hand file(file is made of metal to file plastic not made of plastic Posted Image ).


Frank,

Yes here are some comparisons. It performs surprisingly well for a sealed sub. Take a look at the prototypes comparison to my ported Mass. This sub still kicks ass compared to almost all commercial in a relatively small package and comes very close to a proven performer as in the Mass.

Posted Image
Red-Sealed Tempest Max SPL
Pink-Ported Mass Max SPL
Blue/pink-Temp and Mass without touching the volume

Posted Image
Heres how they compared to each other with Lost in Space calibrated a little over reference.


Julian,

Cut Laminate to rough size. Apply contact cement to both surface of sub and laminate. Allow glue to semi dry. Position laminate on surface with some sort of spacers(wood stripes)so glue does not touch. Once positioned remove spacers. Use "J" roller for secure bond. Cut with Flush cut laminate bit on router. Hand File either 90 degree if another piece of laminate is going to butt up to it or if its already butted up with another piece file at 45 degree angle. Great thing about laminate and contact cement is if you get any on the good part of the laminate (you will) it just rubs off when partially dry.

Terry

#12 of 26 OFFLINE   Kevin Kloet

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Posted March 27 2001 - 12:19 AM

Can you get formica at home depot or the like?

#13 of 26 OFFLINE   Jones_Rush

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Posted March 27 2001 - 01:26 AM

Terry,
Nice spikes. Have you bought them at Partsexpress ? http://www.partsexpr....ID=14971&DID=7

What is the consensus regarding spikes and subs ? are they mainly used for better looks ?, or, do they also affect sound quality.

#14 of 26 OFFLINE   Hank Frankenberg

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Posted March 27 2001 - 04:23 AM

Terry: Nice job! It must look great in your HT and that laminate along with the size must pass the WAF. Professional looking job Posted Image

#15 of 26 OFFLINE   Jack Gilvey

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Posted March 27 2001 - 05:05 AM

Beautiful, Terry. And that was your first time working with that laminate? Nice. Perfect,actually. Which Formica was it, and was there a more maleable grade which might work over radiused corners,etc.? ThomasW advises it would still need some heating to bend.
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#16 of 26 OFFLINE   Ken Cline

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Posted March 27 2001 - 05:17 AM

Great job Terry!

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#17 of 26 OFFLINE   Patrick Sun

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Posted March 27 2001 - 06:00 AM

Terry, looks sweet! Where did you get the little plastic pieces that are used to hold the grill screen on the front of the sub?

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#18 of 26 OFFLINE   Brett W

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Posted March 27 2001 - 06:31 AM

That really is a nice piece.A sub is the first thing I want to do when I move out of my current apartment. The posts like this are what is great about this site, inspirational AND helpful. - Brett

#19 of 26 OFFLINE   Brian Steeves

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Posted March 27 2001 - 07:42 AM

Terry,

I could swear that's my sub!! Posted Image Looks great!

#20 of 26 OFFLINE   TerryC

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Posted March 27 2001 - 08:23 AM

Thanks guys for all the positive comments!

Kevin Kloet
I bought the Formica special order from Home Depot. It was $39.99 for a 4 X 8 piece. Came rolled up in an easy to manage 15" X 15" X 50" box.

Jones_Rush
Yes those are the ones. As for sonic differences I'm skeptical, appearance was my only reason.

Jack Gilvey
First time. Very easy and wouldn't say its difficult at all. As for the radiused corners. I'd be surprised if a novice/beginner would be able to make a 1/2 round radius even with heating. Might need to look elsewhere?

Patrick Sun
Parts Express. Was about $2.95 for 12 of them. They have two sizes, I used the larger ones.

Brian Steeves
100% correct. Posted Image Yours was the one that gave me the inspiration to do one this way. Thanks!

Terry




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