JarvoCop

iTrader: (1)

This may sound like a stupid question to lots of you but i'd like positive feedback plz, K I currently have a Pioneer sub(TS-W3004SPL) 12" that is 1000 w/rms @ 2ohms and im upgrading to a Atomic Apocalypse 15" that has the same specs, the atomic is expected to be at least 2X as loud, how do I explain to my friends that although these subs have the same wattage one is 2X as loud as the other.

hofulstrof

because one is more efficient than the other. it also depends on what type of enclosure/box you have in the. if you were to have that pioneer in a really great enclosre and the atomic in a crappy enclosure then you could end up with the pioneer being louder

JarvoCop

iTrader: (1)

That's what I was kinda thinking, didn't know forsure tho, have you or anyone else here heard atomic subs? specifically the apocalypse...if you have what did you think? From what i've heard so far they are supposed to be pretty awesome.

Pioneer Guy

Changing from one subwoofer size to another will not double the output. That goes against the rules of physics. Why do you think it's so hard for the top competitors to even increase tenths of a decibel with multiple amplifiers & subwoofers?
If you decide to change from your 12" to a 15" you should be able to get increased output (again, all things being equal) but you will not double the output. The questions are going to be where does this increased output perform on the frequency scale? Typically going to a larger diameter subwoofer you will lose accuracy & upper bass frequency output. Depending on your enclosure type (among other things), this may not always be the best course of action (depending on what your looking to accomplish with this change).

Good luck!

JarvoCop

iTrader: (1)

I want a 15" cause I love lower,deeper bass...and I think the apocalypse will deliver it better than the pioneer. ( 1000% sure ) I've considered putting the pioneer in a ported box but i'm still not sure if it would make a big enough difference that upgrading to the apocalypse would do.

theboy

Enclosure is everything.You need to have the right box ,tuned correctly for what kind of bass you want.

Pioneer Guy

If you want lower, deeper bass then yes, a bigger woofer is typically the answer. However, porting an enclosure does not help you in that aspect. To get low bass, a sealed enclosure is best.

zoomer

iTrader: (3)

PioneerGuy. We need to help here with some box simulations, otherwise we are shooting in the dark. I think that your general statement that sealed boxes go lower than ported is not quite true. It depends on the alignment and the sub etc. I would say that ported boxes go lower, but for a bigger volume.

If we can get some T/S for the apocalipse I can post some charts.

Starterwiz

I have that sub in my showroom, in the bandpass box recommended by Pioneer....It is easily the lowest, loudest sub in the room, and I have to have someone sit on it to keep it from dancing across the floor.
We've tried it in sealed and ported boxes, and frankly it sucked.

The bandpass box is still smaller than what you'll need for the 15, and it will out pound it 2 to 1. Try it, and your friends will think you just bought 5 more of what you have now.

Pioneer Guy...you're right about sealed being lower, but what good is 100 dB at 15 Hz, if you can't get 145 at 30 Hz?

MrEastSide

^ I've always thought bandpass boxes were kind of a fad, but it actually sounds best in that type of enclosure?