I've searched this a couple times over the last few days, and I keep getting mixed reviews.
So here it is, one more time.
My pervious car was a 05 accord coupe with a set of Morel Ultimo 12s fibreglasses in the corners. Each sub is being powered by its own Genesis Dual mono ran bridged.
The output, is just about right. Sometimes I wish I had a little more, but for the other 95% of the time when my inner base head isn't trying to play, I love the way it sounds.
Well I'm doing some upgrading, and I plan on buying a S4 in the next year. So I decided to do some reading, and get an idea on the next stereo.
Yes I know the Morel Ultimo isn't the best sub for IB. I would have to swap, probably to the Dynaudio.
Yes I also know the Dyn is a little better sub. But I'm one of those guys that I want things to match. So if I swap subs, I'm also going to want matching comps. Yes I can afford it, but why spend the money if I don't have to.
So, back to the main question.
If the output of my Morels in a sealed box is just enough. Will I be happy going to IB to save weight and trunk space.
I guess I should have added that up front.
The main reason I want to swap, is to save weight, and keep my trunk as open as possible.
I know IB has a flatter response. I know IB requires less power. But pound for pound, when the inner base head does want to play. Will I be as happy with IB?
I should also add. I'm asking this question because I want to learn. So feel free to post graphs or any other cool notes you have to show the differences.
Far as loud I say go up at least one size to compare the IB. The IB will reach lower and lower yet the larger you go with the cones. They don't need the power because they will xmax much easier, on the other hand you don't get much more output than at xmax. What you can lose is the raised Q from the boxes. You can EQ that and choose wisely the subs you buy because their tuning will change the sound just like for a box. Low Fs and mid/low-ish qts typically is a tighter sounding IB sub but still has a good range. I would urge you to model what you want to get in the ballpark of what will work for your needs, and compare to what you had and know.
Pioneer 880PRS~boston comps/alpine coax on Kappa 4 Z~back to Alpine mrd-m500 v12 on pyle 15s IB
IB will get just as loud as sealed but with far less power required. The old myth of IB not getting as loud as sealed is busted. The output potential is identical. All you have to do is run the correct subsonic filter and you're set.
The Ultimo does awesome in IB. I wouldn't switch subs since you already have the Morel. I've heard both, I like the Dyn better but no need to spend more money when you already have a great sub and especially not just so you can go IB. There was a guy on here that did exactly what you're planning to do, he went from an Ultimo sealed to an Ultimo IB and was very pleased. Save your money, you could pull this project off for $100 or less.
If you choose to sacrifice a little SPL, you can set your subsonic lower and have it dig very low with ease and with little power or you can set the subsonic higher, similar to a sealed box's natural rolloff and have the same SPL and about the same frequency response but with far less power required.
I can get into a little more detail if you like but suffice to say if you're satisfied with your sealed setup, you will not be disappointed in the IB setup.
'84 GN 10.60@ 127mph. Infinity 3.5 coaxials and a cheap Sony HU.
I don't think you lose volume either, but if you have a small sealed it can hit hard in higher bass (say 50Hz with a higher Q) while the IB will tend to be flatter (depending on what subs you use) and may not 'sound' as loud. My 15s go loud at 30Hz, but sound far different than the many boxes I tried in there because they do that. The quad 12s I ran IB before that went really loud at 40-50Hz and I hated it, had to EQ it hard to get rid of that. Then they went loud at 30Hz, but I tune them fairly flat. They were a different sub and both did what the models showed they would. 15s are far easier to tune, hair less output but take less room due to smaller baffle and plenty of output for me. I would have bought 18s, but they don't make paper 18s. I prefer paper they usually have a better tone...though I never ran the plastic cone pyles either. And the 18 was way more cash. I would not worry about cone material with a better sub but have had noise issues with cheap plastic cone subs in the past. Odd it was only IB and went away in a box, and we are talking $15 cheap subs lol.
Pioneer 880PRS~boston comps/alpine coax on Kappa 4 Z~back to Alpine mrd-m500 v12 on pyle 15s IB
Last edited by schmiddr2; 08-12-2012 at 09:45 PM..
Back on topic, the morels will do fine IB. Put a subsonic on it that matches the roll-off of the boxes you had before and you'll be just as loud, with less power.
OP: or you can not run a SS filter, but you have to check your xmax and move the filter up until xmax is at a safe level at your max output....so you don't trash the subs. Of course that depends on what abuse the subs can handle and how hard you run them.
Pioneer 880PRS~boston comps/alpine coax on Kappa 4 Z~back to Alpine mrd-m500 v12 on pyle 15s IB
Last edited by schmiddr2; 08-12-2012 at 09:45 PM..
Far as loud I say go up at least one size to compare the IB. The IB will reach lower and lower yet the larger you go with the cones.
As much as i would love to run 2 15s IB, I don't see that fitting in the rear tray on a S4. And I can't give up the fold down seat for when I do need to move something long.
Quote:
Originally Posted by BuickGN
Save your money, you could pull this project off for $100 or less.
I wish that was true. But I still need to buy the car, sound dampening, processor, and knock out the full install.
Quote:
Originally Posted by BuickGN
If you choose to sacrifice a little SPL, you can set your subsonic lower and have it dig very low with ease and with little power or you can set the subsonic higher, similar to a sealed box's natural rolloff and have the same SPL and about the same frequency response but with far less power required.
So far i'm really digging the idea. I was a little worried I would have to add 2 DMX's to run 5.1 and keep my output where it is. But everything I'm reading makes me think a single DMX would do for both subs in IB.
Quote:
Originally Posted by BuickGN
I can get into a little more detail if you like but suffice to say if you're satisfied with your sealed setup, you will not be disappointed in the IB setup.
I would love to know more. I didn't just post this so I could have an answer. I wanted to learn more.
Old thread I know, but what kind of power would a Ultimo 12 need in IB. I was planning on a sealed box, but might consider IB to run 1 amp. Or possibly pick up another 12.
Old thread I know, but what kind of power would a Ultimo 12 need in IB. I was planning on a sealed box, but might consider IB to run 1 amp. Or possibly pick up another 12.
Typically manufactures say to use 1/2 the RMS rating when running IB.
Also OP, did you run the 2 Ultimos IB? Did you like it?
I can't answer for the OP but I was PMing with a guy that had an Ultimo and he went from sealed to IB and loved it. Apparently it helps bring up the sometimes anemic low end while still blending very well as the Ultimos do.
'84 GN 10.60@ 127mph. Infinity 3.5 coaxials and a cheap Sony HU.
I would guess by all the models I have done that if you take a sealed for SQ that does not have a high (tuning) Q....your IB response is going to be about the same but more output under 40Hz or so, depending where it rolls off. Much like ported affects tuning area and very little above it, sealed affects the bottom end by limiting it. Sealed can provide a bump from Q but should not be common to have over .7 Q with a SQ setup. IB does nothing to the native driver FR, all you have is the qts it came with. Just like BuickGN is saying it should beef up the bottom.
Will have to be careful of overdriving the sub of course, depending on how good it is at handling that.
Pioneer 880PRS~boston comps/alpine coax on Kappa 4 Z~back to Alpine mrd-m500 v12 on pyle 15s IB
IB VS sealed, hopefully the final answer
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