Well after only a couple weeks of my two 12's sealed I am already wanting to upgrade. I am thinking of buying a 15" Dayton Audio Titanic sub and running it off my 1000W plate amp. Ported this time definatly. Before I buy I was wondering if there are any other subs out there with similair output, sound quality, and price of the Dayton Titanic MKIII 15?
Thanks
Thanks
Well, going by the specs, the Qts is low at .38 which should make it go low, which the specs do reflect. But it may not be as loud as something with a higher Qts, maybe around .7 or so. It depends on what you like. Though the rated sensitivity is by no means bad.
Edit to add: As for the 1000W amp, I would make sure to keep it not much higher than half, as the driver is rated 800 watts.
Edit to add: As for the 1000W amp, I would make sure to keep it not much higher than half, as the driver is rated 800 watts.
Why not port the 12's? two ported 12's should be louder than one 15".
(I didn't look at the specs but this is assuming they can work in ported enclosures)
(I didn't look at the specs but this is assuming they can work in ported enclosures)
what kind of bass do you want?
do you listen to music or HT? both?
what 12s do you currently have, what box are they in?
If youre the type that listens to rap at astounding levels, then port em to 30hz in a big box and get a big peak for all those booms
2 12s should have 60% more surface area than a 15"
do you listen to music or HT? both?
what 12s do you currently have, what box are they in?
If youre the type that listens to rap at astounding levels, then port em to 30hz in a big box and get a big peak for all those booms
2 12s should have 60% more surface area than a 15"
The sub will be used about 70% music 30% movies. The 12's I am using are two Image Dynamics IDQ v.2 DVC 2 ohm (I used these subs because I had them here anyways). Each sub has its own enclosure @ 30 litres sealed. I also put in 1/2 lb of polyfill in each box. Didnt seem to make any difference with or without it. I listen to everything from rap, to hard house, to rock, to classic rock, to classical. So pretty much everything except country. But the subs lack the bass in rap songs when the bass drops too low and the subs go pretty much silent when there should be a low loud bass note. Using WinISD I have been trying different things using these subs (ported and sealed) and it seems with these subs start to roll off at to high of a frequency. Where that 15" Titanic ported has flat response down to below 30 hz, and even at 20hz only a couple dB less (IDQ's flat response to about only 50hz then drops) Also these are DVC 2 ohm so there is no way to wire them to 4 ohms to the amp, so they are only wired to 8 ohms getting about 250 watts each, where each sub is rated at 350 RMS. Thanks for the replies guys! Hopefully you can help me out. If you need anymore info on these subs just ask! I really appreciate the help here!
Thanks
Thanks
OK!
This might be difficult, youll end up making compomises most likely.
For rap you want a mid sized box tuned to 25-32hz, for classical you want(and this is my opinion so no one can shoot me down) probably a sealed sub, keeping things simple even and accurate. And for HT you want a sub thats flat right to the low notes and can produce alot of volume at low frequencies.
I'm to lazy to do any modelling, but a sealable SBB4 alignment sounds good to me
This might be difficult, youll end up making compomises most likely.
For rap you want a mid sized box tuned to 25-32hz, for classical you want(and this is my opinion so no one can shoot me down) probably a sealed sub, keeping things simple even and accurate. And for HT you want a sub thats flat right to the low notes and can produce alot of volume at low frequencies.
I'm to lazy to do any modelling, but a sealable SBB4 alignment sounds good to me
So the Titanic since its flat right down into the low frequencies, it would be good for HT applications correct? Would it also be good for rap then correct? And how would it be on say drum bass from say metallica? I'm not too worried about the classical part of it all, I would just put my receiver in pure direct mode for that if it sounded that bad. Since my towers have decent low end. And how would this sub sound on some hard house tight beats?
Still taking ideas on other possibilities too!!
thanks
Still taking ideas on other possibilities too!!
thanks
derekwwww said:
If your like me and you're use to your "boom car" you're gonna find that an even freq response down into the lower bass region seems like it's still kinda lacking with rap music at least. And it seems that some songs are just made to make your car go boom. The songs that I like to listen to in my car just lose all their appeal when played without so much low bass.
How much space do you have? I would do a 5 cu.ft vented box tuned to 18.5 Hz per driver with a 2nd order butterworth highpass filter at 20 Hz. You could do one huge box or two separate big boxes.
About 122 dB from 20 Hz and up in a normal room from your amplifier using the same wiring scheme, so 250W RMS per driver, it's enough.
About 122 dB from 20 Hz and up in a normal room from your amplifier using the same wiring scheme, so 250W RMS per driver, it's enough.
what about a horn
there is muc htat can be done with a horn and the level per watt in is alot greater then any proted box you can think of
just a thought
there is muc htat can be done with a horn and the level per watt in is alot greater then any proted box you can think of
just a thought
I have as much space as I need! Going ported it wouldnt take as much wattage as it would to play them to a level certain sealed correct? I used to run three of these IDQ's in a car sealed at about .7 cuft each sub with 400 watts RMS on each sub. They slammed hard and moved alot back then. So I am thinking seeing as I am only feeding them 250 watts, 100 watts under their RMS, it would be more efficient for them to be ported then sealed? Also I still have the third sub here too. I could buy a 4th one brand new online for $20 less then the 15" titanic new. That way I could go all 4 of the IDQs ported and each of them would still be getting 250 watts RMS since with 4 I could wire the amp to a 4 ohm load. These 4 12's ported would probably be alot louder then the one 15" ported I would assume. If a guy was to do that, would it be better to make 2 towers with 2 12's in each tower. Or one enclosure with all 4 drivers? Or 4 seperate enclosures with one in each corner of the room? Or?
Also where would one buy the 20 hz highpass filter? Does PE have any?
Thanks
Also where would one buy the 20 hz highpass filter? Does PE have any?
Thanks
If you're looking to slam, I was recommended the Tuba enclosures from Bill Fitzmaurice (here: http://www.billfitzmaurice.com/plans/default.php/cPath/1)
I am working on the Tuba 24 with a Madison Executioner 10.
I am working on the Tuba 24 with a Madison Executioner 10.
If you don't mind something a little flashy, try a Cerwin Vega V-MAX 15. It will need a bigger box than a Titanic MK3 sealed, 5.6 cu-ft vs 3.2. Yes I know, the V-Max is a "car" sub, but in a 5.63cu-ft sealed box it becomes a very good home sub and a very musical one at that.
How does an f3 of 25.5Hz and a 10.42ms group delay grab ya?
Now, a ported Titanic will go a little lower, but it needs an even bigger box (6.4cu-ft) and can't touch the V-Max when it comes to group delay (28.4ms).
How does an f3 of 25.5Hz and a 10.42ms group delay grab ya?
Now, a ported Titanic will go a little lower, but it needs an even bigger box (6.4cu-ft) and can't touch the V-Max when it comes to group delay (28.4ms).
Well if you want to go wild and you have the ability to do some tuning why do you get a 4th 12" and go sealed and ported. Build two sealed enclosures and run them in stereo up front. Then build two ported enclosures an tune them low. Bring them in where the sealed start to roll off. This type of setup has great sound.
gona have to say no about the cerwin vega idea...
and i would rather have 4 ported or 4 sealed then 2 and 2.
and i would rather have 4 ported or 4 sealed then 2 and 2.
I havent used any Dayton Audio products, but hear good things..
However, I have found these Ascendant Audio subs to be very pleasing.
http://ascendantaudio.com
Ive own two Atlas 12 and have heard the Avalanche 12 and 15.
Someone posted test showing distortion levels of the Atlas 12 to be on par with the TC Sounds TC2+ 12 woofers..
How 'bout an Avalanche 18"..?😀
However, I have found these Ascendant Audio subs to be very pleasing.
http://ascendantaudio.com
Ive own two Atlas 12 and have heard the Avalanche 12 and 15.
Someone posted test showing distortion levels of the Atlas 12 to be on par with the TC Sounds TC2+ 12 woofers..
How 'bout an Avalanche 18"..?😀
You want to buy a 4th one? That's a very interesting idea!
You could do 2 boxes with one woofer frontfiring and one backfiring. Or one box with 2 fronts and 2 at the rear. You'll get less distortion this way.
I'll try to model that and come back at you with the results.
I don't recommend going with Cerwin Vega, not a good idea.
Remember that 250W RMS versus 350W RMS per woofer is about 1 dB. You need 2 times more power to get 3 dB.
You could do 2 boxes with one woofer frontfiring and one backfiring. Or one box with 2 fronts and 2 at the rear. You'll get less distortion this way.
I'll try to model that and come back at you with the results.
I don't recommend going with Cerwin Vega, not a good idea.
Remember that 250W RMS versus 350W RMS per woofer is about 1 dB. You need 2 times more power to get 3 dB.
Reason(s)simon5 said:
? Four 12's may be louder, but will they go lower than a Titanic or V-max? Indoors you loose all that nice "cabin gain" you get in a car. Have you run the specs through a box program to see what you'll get indoors? Try running the specs on your 12's compared to these or the Titanic's and see what you get.
Cerwin-Vega VMAX-15SVC sub specs:
Sensitivity 2.8v@1m: 93db
Power handling RMS:400 watts
Fs: 17Hz
Qts: .40
Qms: 9.48
Qes: .42
Vas: 7.1^3 ft.
Xmax: 20.3mm
Nominal impedance: 4-ohms
Re: 3.57-ohms
EPB: 40.47
WinISD recommended sealed box: 5.622 cu-ft.
Qtc.: .71
f3 in said box: 25.5Hz before any added room gain.
Group delay in said box @ 25.5Hz: 8.8ms
Max group delay: 10.4ms @ 17.5Hz
Very well controlled and musical, just like a sealed box should.
Enough X-max and SD to do HT justice.
If you've got the space, it's got the bass 😉 .
I have the DVC version powered by a stereo power amp.
Mine cost $140 delivered (ebay)
Yeh I wouldnt mind buying a 4th one if thats gona give me what I'm looking for! I imagine 4 12's ported would play better in all aspects compared to 1 15" titanic ported? Also, since these IDQ's are car audio subs and are made for 'small enclosures' (recommends 1.0-1.5 cuft ported in a car), will they sound sloppy in a big ported box like 5 cuft? As compared to something like the titanic which is made for home audio use in a big ported box.
4 of those puppies should get you boomin easily.
Just some interesting facts that come in handy
On average 2 12" will have 60%(ish) more sd than one 15, you do the math for 4 12" vs one 15". A doubling of ENERGY (+3dB) requires a doubling of displacement, a doubling of volume(+10db) reqires 3 times the amount of displacement. meaning if you start with one woofer with an efficiency of 90dB youll need 8 of those woofers to get an efficiency of 100dB.
And my input on the setup would be make 2 towers with one ported 12 on the bottom, then a seperate sealed chamber on top, and make a crossover so that the ported woofers handle the low low(sine waves, rumbles, explosions and booms) end and the sealed handler the higher high end (kickdrums, higher "chest bass" hits, techno bass) run them in the front 2 corners of the room beside the mains and that should be a loud and accurate system!
Also if you want to get a flatter more even soudning response, or alternately a peakier more boomier response(depending on what you want!) You may consider investing in a berringer BFD feedback destroyer.
Just some interesting facts that come in handy
On average 2 12" will have 60%(ish) more sd than one 15, you do the math for 4 12" vs one 15". A doubling of ENERGY (+3dB) requires a doubling of displacement, a doubling of volume(+10db) reqires 3 times the amount of displacement. meaning if you start with one woofer with an efficiency of 90dB youll need 8 of those woofers to get an efficiency of 100dB.
And my input on the setup would be make 2 towers with one ported 12 on the bottom, then a seperate sealed chamber on top, and make a crossover so that the ported woofers handle the low low(sine waves, rumbles, explosions and booms) end and the sealed handler the higher high end (kickdrums, higher "chest bass" hits, techno bass) run them in the front 2 corners of the room beside the mains and that should be a loud and accurate system!
Also if you want to get a flatter more even soudning response, or alternately a peakier more boomier response(depending on what you want!) You may consider investing in a berringer BFD feedback destroyer.
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