Got some specs but don't know what to do

[Xprime4 10+ year member]

subs will be a pair of 12" Tc sounds made tc-9. All the specs/infos i have on these are here: http://www.subguts.com/TC_TC_9.html

Key Features

140 Newtons2/watt Motor Force

800 Watts Continuous Power

3" Anodized Copper Voice Coil

Single Dish Aluminum Cone

1" NBR Surround

145 Ounce Magnet Structure

18mm XMax

8.0" Diameter Suspension System

Cast Aluminum Frame

12" TC-9

Qts 0.354

Qes 0.384

Qms 4.46

Fs 27hz

Res 5.96Ω

Ls 4.35mH

Lp 8.26mH

Rp 10.88Ω

Dia 250mm

Vas 35.3l

mms 331g

cms 104um/N

bl 29.2T*m

Spl 84.7dB

Since Tc sounds is out, i tried contacting audiopulse technical service but i just learned that audipulse was out too.... That won't help me at all

I want to do a 30-32hz ported box but i have no idea on what volume to do it. I've seen suggestion between 1ft/cu per sub up to 2.5ft/cu sub. I have some trunk space and don't really care about it. So i just want the subs to perform the best sq wise/spl wise. I'm more 70sq/30spl.

I don't understand the modeling program and i don't know if they are reliable. Can I get the optimal box specs for these with the infos i have.

Otherwise, i can't contact Tl/audiopulse/whatever it will be next?

It will be powered by a bxi2006d at 1ohm, so 800-900 watt +/- per sub.

thanks

edit: i did a lot of research before buying these.. but no official info on box reccomandation

Click to read more...

 

[Xprime4 10+ year member]

5 easy bucks will be the reward //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[Xprime4 10+ year member]

I was recommanded 2 to 2.25 ft/cu per sub. I would do 32hz tuning with around 12sq/ft of port area

how does that sound? too big?

 

[mcsoul 10+ year member]

I was recommanded 2 to 2.25 ft/cu per sub. I would do 32hz tuning with around 12sq/ft of port area
how does that sound? too big?

144 square inches for 4.5 cubic feet does not sound right.

70-80 square inches would be reasonable, unless there is some tc-9 properties I'm unaware of.

Something like this from the free box sticky would work, it's a little light on the port area. It could be modified.

 

[Xprime4 10+ year member]

144 square inches for 4.5 cubic feet does not sound right.
70-80 square inches would be reasonable, unless there is some tc-9 properties I'm unaware of.

Something like this from the free box sticky would work, it's a little light on the port area. It could be modified.

where does the 144 come from //content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif lol from my testing so far, i love the sound of smaller port area. that's why i want to stick to around 12sq/ft.

my biggest worries is really the airspace the sub need to perform the flattest

 

[mcsoul 10+ year member]

Oh I see. That box I posted will work good then.

It does have a 4db peak at 34hz which starts at 50hz and goes flat at 30hz.

It looks pretty nice to me.

Unfortunately, group delay is off the charts at 30hz, but at that frequency it may

not make a big difference.

 

[Xprime4 10+ year member]

Oh I see. That box I posted will work good then.
It does have a 4db peak at 34hz which starts at 50hz and goes flat at 30hz.

It looks pretty nice to me.

Unfortunately, group delay is off the charts at 30hz, but at that frequency it may

not make a big difference.

can you export the graph? i'm not quite sure i understand what you just gave me //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

what i understand : 4db gain in the mid thirty that keep on till 50hz? the rest is flat? I saw group delay few times today, what does it mean?

 

[mcsoul 10+ year member]

The graph is not bad, although it's not a typical sq graph.

group delay would sometimes be described as muddy bass. it is the difference

in milliseconds between the time the sound wave off the cone reaches your ear

vs the wave out of the port (as I understand it). The lower the frequency the less

it matters.

 

[Xprime4 10+ year member]

The graph is not bad, although it's not a typical sq graph.

group delay would sometimes be described as muddy bass. it is the difference

in milliseconds between the time the sound wave off the cone reaches your ear

vs the wave out of the port (as I understand it). The lower the frequency the less

it matters.

what if i want a "typical sq graph" //content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif

Would building a little smaller box or more/less port area help alot? I want it the most sq oriented ... but i don't need it to be flat in the subsonics freq. Let says the flatest from 30-32hz

also give me your paypal, your help gotta be rewarded

 

[mcsoul 10+ year member]

Port area will not help, box size and tuning will; but I'd go with recommended in this case.

That peak is pretty low in the freq range. I think these speakers are made to slam and sound

pretty good doing it, that it what the graph indicates to me.

Also, I'm no pro, so I don't charge.

 

[Xprime4 10+ year member]

Port area will not help, box size and tuning will; but I'd go with recommended in this case.That peak is pretty low in the freq range. I think these speakers are made to slam and sound

pretty good doing it, that it what the graph indicates to me.

There is no "recommanded" from tc or ap ... and since they're out... i probably won't have any feedback from those guys

Can you just try with a smaller enclosure size.. like 2ft/cu per sub. Just to see how the line would react

thanks for everything, your a pro and a gentleman //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[mcsoul 10+ year member]

There is no "recommanded" from tc or ap ... and since they're out... i probably won't have any feedback from those guys
Can you just try with a smaller enclosure size.. like 2ft/cu per sub. Just to see how the line would react

thanks for everything, your a pro and a gentleman //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

I could do that and I already have. The only problem is that I do not know TC sounds gotchas. I mean a flat box for 2 woofers is 1.6 cubes at 30hz, the port would displace more than the box lol. I could not in good conscience help build that box unless I was sure it was the right thing to do. The 4.4 at 30-32hz may not be sq, but at least I'm pretty darn sure it will impress //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif.

I think you need to find folks with tx-9 experience. Maybe dragnix would help.

Edit: 2 cubes per does not do much to flatten it compared to 2.2 cubes per sub.

And, your welcome, no problem.

 

[mcsoul 10+ year member]

http://www.caraudio.com/forum/showthread.php?t=251803&highlight=tc9

oops lol

For 2 subs, somewhere between 3@32hz and 4.6@23hz was recommended

I'm kinda liking 4 at 27, the middle one in light blue.

red is 3@32hz, green is 4.6@23hz; all on 2000w

Here's 4@27hz

 

[Xprime4 10+ year member]

http://www.caraudio.com/forum/showthread.php?t=251803&highlight=tc9
oops lol

For 2 subs, somewhere between 3@32hz and 4.6@23hz was recommended

I'm kinda liking 4 at 27, the middle one in light blue.

red is 3@32hz, green is 4.6@23hz; all on 2000w

Here's 4@27hz

I couldn't have asked for more

thanks a lot //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

It will be an hard decision. Blue line seems like a nice curve, but 27hz sounds pretty low. I hope it won't kill the output over 50hz too much

 

[Xprime4 10+ year member]

I'll do 4ft at 28hz ( lol just a tad ove 27hz)

Still got one question for you Mister Mcsoul //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I'll be using re l ported calculator for the volume and port dimension. I heard it's off 1-2hz in the tuning and maybe a little airspace wise. Any better enclosure calculator on the web?

I would have used the pre-made box, but i'll optimize my trunk space and when the time will come soon... i'll still have some space for the stroller //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif