Diamond Audio TDX 12D4 Sealed Enclosure

Home / the12volt's Install Bay / Car Audio / Diamond Audio TDX 12D4 Sealed Enclosure (

Topic Closed)

Welcome Guest :)

Members

< Prev Topic Next Topic >

specialblendj

Copper - Posts: 118

Joined: September 03, 2003

Location: United States

Posted: March 12, 2004 at 2:21 PM / IP Logged

I'm trying to design an enclosure for the Diamond Audio TDX 12D4. I'm thinking sealed, but I'm not 100%. I hate how ported enclosures always seem to have this peak frequency where they are way louder, I don't like the way it sounds. But they are so much louder. So I will ask a few things:

Does anyone know what the sealed volume should be for this sub?

Can Anyone attest to the SQ differences between sealed and ported with this sub? And can you get a ported enclosure with a more mellow frequency curve, with less peak.

Is VB ft^3 a representation of enclosure volume?

Whats a good shape for this box? I was thinking a wide rectangle with the sub mounted at one end of it, and with the rear of the enclosure slanted.

I want this sub to pound, but SQ is more important to me.

sonicsound

Copper - Posts: 100

Joined: July 08, 2003

Location: Wisconsin, United States

Posted: March 13, 2004 at 12:21 PM / IP Logged

here is the link for the specs and the dimensions you need for the sealed and vented enclosures http://www.diamondaudio.com/Files/products/TDXmanual%5Frev2%2Epdf Go to this site and all your questions will be answered. Hope that helps...

Sonic

Pioneer AVH-P4000DVD

Zapco 360.4

Zapco 500.1

Zapco SP-4SL Processor

Two JL 10 W3v3d2

Alumapro 15 Farad Cap

DYohn

Moderator - Posts: 10,741

This member has made a donation to the12volt.com. Click here for more info.

This member has been recognized as an authority in Electrical Theory. Click here for more info.

This member has been recognized as an authority in Mobile Audio and Video. Click here for more info.

Joined: April 22, 2003

Location: Arizona, United States

Posted: March 13, 2004 at 3:45 PM / IP Logged

Just to add a little based on some of your questions, yes, a ported enclosure will have a peak at a desired frequency. This is their purpose. The reason they can produce higher SPL is because they are tuned to pump out a lot of air at a specific frequency (or frequency band.) They can be designed with a more general, mellow response curve, however. It is all in how the port is sized and how the enclosure is baffled inside. If, as you say, SQ is more inportant to you, then there is no better option than a sealed (acoustic suspension) enclosure. Especially with a high quality driver like the Diamond, sealed is definately the way to go for critical listening. Beware of building a long rectangular "tube" shaped enclosure with the driver mounted in one of the short walls, as this can produce a very unnatural ringing sound and can actually damage the woofer by allowing it to be over-driven if the enclosure is not perfect. Mount the sub on one of the long walls instead.

specialblendj

Copper - Posts: 118

Joined: September 03, 2003

Location: United States

Posted: March 13, 2004 at 8:11 PM / IP Logged

Sorry if I was unclear, but I do intend to mount the sub on one of the long walls, all the way to one side of it. But what differences would i notice between a .55 ft^3 and a 2.5^3 enclosure. It will be louder and looser the bigger the box gets right? Does anyone have a box size suggestion? Something that works well. I want SQ, but I also want it to be loud.

DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: March 14, 2004 at 9:50 AM / IP Logged

In general, a smaller enclosure will dampen a woofer more and will limit the woofer's ability to reproduce lower frequencies, but allow it to handle more power. The TDX 12" will hit about 45 Hz in a tiny .55 CUFT enclosure but be able to handle close to 1200 watts. It'll easily get down to 30 Hz (or lower) in a huge 2.5 CUFT enclosure, but will only be able to handle about 500 watts. It will play louder with more power, not necessarily because of the size of the enclosure.

I've used this woofer many times and love it's sound quality. I recomend you target your enclosure for about 1.5 to 1.75 CUFT sealed (and well braced.) This woofer will rock in that size enclosure and will take around 1KW (1000 watts) before it complains.

fintheman

Member - Posts: 24

Joined: March 31, 2004

Location: United States

Posted: April 01, 2004 at 5:57 AM / IP Logged

I just built a box for mine, I *think* its about 1.6 cubes.

I added an 1 inch to the base, but I took 1.5 inches from the sides (I forgot that the top will be supporting that)

-fin

Serving the country, one coffee at a time.

USAF!

fintheman

Member - Posts: 24

Joined: March 31, 2004

Location: United States

Posted: April 01, 2004 at 6:06 AM / IP Logged

Hmmm...well, I did add two braces...so 1.4-1.5ish

Serving the country, one coffee at a time.

USAF!

Sorry, you can NOT post a reply.
This topic is closed.

Printable version

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Search the12volt.com

Follow the12volt.com

Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Diamond Audio TDX 12D4 Sealed Enclosure

Sorry, you can NOT post a reply.This topic is closed.

Sorry, you can NOT post a reply.
This topic is closed.