eclipse ti PRO 15...

[Trunk_Monsta 10+ year member]

im thinking about selling it but i dont know which sub i want to replace it with, i love the lows that it produces but the high notes are pretty weak but then again, its only in a small sealed box, being powered by a rockford 800.2. its just a temporary setup until i get the time to dedicate to this system. i wanna go ported but havent had the time to do so lately... any suggestions on a pair of 12's or 15's for DAILY DRIVING only? thanks in advance

Click to read more...

 

[jeremiah 10+ year member]

to 15" eclipse ti pro

 

[Fast1one 10+ year member]

Well you should be giving it 4-5 times the power, plus its sealed...hmmmm....

 

[Trunk_Monsta 10+ year member]

trust me, im no rookie with car audio.... i know what im doing. i just wanted a few opinions on other "super" subs out there for a reasonable price... i know it's rms rating, {3000watts} i also know it shouldnt be sealed, but being military, i cant devote alot of time into my system.

now, anyone have any REAL opinions?

 

[smd4life 5,000+ posts]

just build a ported box, you'll have to build a different box anyway for the other subs your planning on

 

[bimma85 5,000+ posts]

trust me, im no rookie with car audio.... i know what im doing. i just wanted a few opinions on other "super" subs out there for a reasonable price... i know it's rms rating, {3000watts} i also know it shouldnt be sealed, but being military, i cant devote alot of time into my system.
now, anyone have any REAL opinions?

whats "resonable"?

Also it doesnt take a ton of time to build a ported box.

 

[mazdakid 5,000+ posts]

is this in one of the cars in your sig? my dad just sold his 79 malibu

 

[Trunk_Monsta 10+ year member]

yes this setup is in my malibu... i just put a 400 small block in my malibu and a 400 turbo ****** in it too. so it should be pretty quick

i will be building a ported box this weekend, if i have time.... tech reps @ tc sounds are giving me some rediculous box plans... 1.1 cubes tuned to 31 hz???? so im just shooting for 4-5 cubes around 32hz.

i may actually try a few cvx's just to see what they sound like.

 

[Remotia 10+ year member]

That sub was really designed for small box SPL applications, here are the T/S if you want to try and design a better box for it.

Qts is about 0.17

Bl is 45

Sd is 0.079 meters squared

SPL is 91dB with 1 watt @ 1 meter

Cms is about 81

Vas is about 60 liters

Those numbers are off the top of my head but should be close

The alignments call for a very small box. You can use passive radiators just find and get linear frequency response with high output. The driver actually wants to live in a ported box but because it is so over motored, it only needs a small box for linear response, hence anything larger will cause a HUGE peak at tuning frequency which is great if you want to do SPL competition. The 4HP's kill the spl competitions all day long for this reason, but for daily driving, you need something FAR more tame. If you want to keep this subwoofer, I would recommend a small sealed box with a lot of power and EQ down low to kick up the output around 25Hz. Ported and passive produce about the same results relative to one another, however you can more easily get feasible tuning frequencies with passive radiators because they don't depend on port length or area to tuning frequency. Literally, to get the Ti linear in its ideal box would require a port length that would not fit into that box unless you are one darn good wood worker and like to spend time by yourself late at night.

You'll likely not find a louder speaker the motor is literally almost twice as powerful as the MTX Jackhammer to give you an idea of why it's so **** hard to tame.

Ok here is the system I came up with for you. The trick I used was to EQ to top end to try and match the enormous efficiency spike at tuning frequency.

Use a 2 cubic foot box tuned to 28Hz. The port area should be two 4” ports at 30” long. Now you can’t fit two of these in a 2 cubic foot box so what you’ll have to do is use a slot port and wrap it around one or maybe two corners. The slot port length should be also 30” but the area should be 25” squared or the same area as the two 4” ports.

Use a high pass filter at 23hz with a Q of 0.707. That will limit the excursion to a bit but with the PEQ we’re going to put up high, you’re still going to get higher excursion above tuning frequency. Here is what you need. At 50hz put a PEQ with a Q of 1.4 with a gain of +6.0dB, and then put a low pass at 80 or 90hz to cut off higher frequencies.

The end result will be a very loud sub with only a 2 to 3dB peak at 28Hz. That will be pretty linear and very loud.

Good luck!

 

[Remotia 10+ year member]

edit: double post

doh

 

[Fast1one 10+ year member]

trust me, im no rookie with car audio.... i know what im doing. i just wanted a few opinions on other "super" subs out there for a reasonable price... i know it's rms rating, {3000watts} i also know it shouldnt be sealed, but being military, i cant devote alot of time into my system.
now, anyone have any REAL opinions?

I wasnt trying to be a dick about it, but why waste all this money on a super sub and ony partially power it? IMO for a daily driver, I would sell it and get something more efficient like something from SS, a Mag, or even a TC 3000. Save your electrical, space, and still get loud while retaining SQ. Theres a better answer for ya //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif