Help choosing a sub

[warock56 0]

Hello guys new to the forum, but hopefully stay here for a while. I have 2 old Rockford 15" Power HX2s but when I put them in my new car (09 Lancer) I never bolted them down and the other day I accelerated and they slid to the back of the trunk and one of the subs moving hit the back of the trunk lid and got rockfcked up. Anyways the system was cool in my other car but it was just too big for this car anyways so I was selling it. I have been looking around now and I think my best bet is to go with Fi.

I have a Rockford P1000-1BD (1000RMS @ 1ohm) amplifier which I plan to use when I buy the Fi. Anyways on the birthsheet the amplifier is 1471 RMS @ 1 ohm so this is the main issue. The 2 15s were loud enough and I dont need that in the car, they were sealed so didnt hit the lows. I would like to port a 12" tuned to ~32Hz.

I was looking at the q12 which is 1000 RMS and the BL is also 1000 RMS now would any of these be able to handle ~1400RMS? Anyways right now I have 4gauge wiring so I dont think Im getting the whole 1400 (But what the heck do I know). anyways the q comes out at 285 and bl at 300 both with all options so price isnt really an issue over 15 bucks but I dont know much about Fi and maybe you guys can tell me what i should go with? Keeping in mind its going to go in an 09 lancer with a small trunk, and max dimensions of box is ~16h, 30w and I dont know lenght off the top of my head.

Edit: Or could I get the SSD with 800 RMS and lower the gain on the amp or something, 230 would be a much better price for me right now but if it doesnt go with my amp then I will wait and get the q or bl

Anyways just drop me some opinions I am not looking to buy asap since I have no room in my house and the 2 15s are taking up the whole trunk until I sell them.

I do not know much about audio over the last couple of months I have been reading some things here and there but I do not know if my information is accurate.

The only thing I can tell you guys for sure is i have a 4gauge cable and a 1471 RMS @ 1ohm amp and I want 1 12" ported only because Im not looking into competitions or anything just 30 minute-2 hour drives every day, and I want to make sure I dont blow the subwoofer or anything.

Thanks in advance for the help

Edited July 1, 2010 by SomeFiGuy

[brandonu 0]

well what are your bass goals? with 1400 watts you could do any of the 3 just because you have 1400 wrms doesnt mean you have to use it all. leave your self some headroom. i have a ssd and its very nice gets loud and sound pretty gd. i dont have experince with the q or bl but the q is a sq sub and the bl is a mini version of the btl. if you want it as loud as possible go with the bl 12 . you dont have to ad the options if money is an issue, you could grab a stock bl . my ssd is stock and i run a alpine pdx1000 and it gets down rite nasty in my truck. im interested in getting a stock bl myself.

Edited July 1, 2010 by brandonu

[warock56 0]

well what are your bass goals?

I dont know how clear I made but it I want something to run off the current amp I have I listen to rap and wanted it tuned to 32Hz, I will get a custom box made for the sub. Dont need it to get ridiculously loud, just want to hear the deep bass that I couldnt in my sealed 15s

[JustinW 0]

just get the ssd, with or without options i'm sure it'll handle the 1000rms no problem.

[slim2fattycake 85]

NVM

[warock56 0]

you should build a ported box for the 15s. use aeroport to save some space. you'll get louder with 2 15s over a 12. You can tune the 15s low as well. But if you don't have the room for them then forget what I said.

No its way too small back there, thats the reason im selling them.

[warock56 0]

just get the ssd, with or without options i'm sure it'll handle the 1000rms no problem.

what should I get for the subs dual 1 or 2 ohm for my amp? I dont know about the wiring

and phi this is current setup, not much space to work wit unless I make whole trunk a box

skip to 50 seconds...

Edited July 1, 2010 by SomeFiGuy

[slim2fattycake 85]

I say try to flip it around to where the subs face into the cabin and see what its like or build a box for the one 15. I still think 2 15s sealed is louder than 1 12 ported on the same power if your not in depth about firing and position testing. Those subs look to be pretty good subs. I have always wanted to try the 8 or 10s. If they're rated for 1000 watts then why not use one and sell the other? you can get a ported box for a 15 with an aeroport in there. If you can get a sealed box for two 15s in there. It would save you money or more than likely gain you money but still get you the goal you want. And really make sure that you like LOW bass or high 30s to 40s bass. Lots of normal rap songs peak in that range.

[altoncustomtech 773]

You'll need a D2 sub wired in parallel for a final 1 ohm load. All 3 subs would perform great on your amp, personally if I was you I'd go with the SSD. You'll save a few $$$ and have plenty of headroom available which is a good thing.

Phi's suggestion is a great one as well, running just one 15 ported would be a great option.

[warock56 0]

I say try to flip it around to where the subs face into the cabin and see what its like or build a box for the one 15. I still think 2 15s sealed is louder than 1 12 ported on the same power if your not in depth about firing and position testing. Those subs look to be pretty good subs. I have always wanted to try the 8 or 10s. If they're rated for 1000 watts then why not use one and sell the other? you can get a ported box for a 15 with an aeroport in there. If you can get a sealed box for two 15s in there. It would save you money or more than likely gain you money but still get you the goal you want. And really make sure that you like LOW bass or high 30s to 40s bass. Lots of normal rap songs peak in that range.

Well what you cant really see is that the box is an L shaped box, the back of the front of the box is around 17 inches and the back of the box around 14 or 15. There is a big metal piece in the mitsubishi trunk that is the reason why I had to get an L shaped box.

http://l.yimg.com/dv/ag/mitsubishi_lancer_es_2009_other_7.jpg

Thats why I cant fire them into the cabin, and the dimensions from RF on the power 15" require a 17" port and like 16" length which I do not have room for unless it uses the whole trunk and leaves the space behind the seats useless.

so if I were to turn the box around I would have to position it by the far back of the car, and I dont like sealed, I hate it every time a high note kicks in and sounds super loud (just the way i like to listen to music not saying theres anything wrong with that)

Edit: And I dont know what an aeroport that you said is I AM A look it up.

Edit: Btw this was building the box it should give you a general idea of what I was trying to write about the L shape.

Edited July 1, 2010 by SomeFiGuy

[warock56 0]

Hey guys help me out here yesterday I found a place on the fi website that showed the dealers in florida but I cant seem to find it now

[slim2fattycake 85]

Fi doesn't have dealers. You're thinking of AA. What's the maximum dimensions you want to give up for a box?

[warock56 0]

Fi doesn't have dealers. You're thinking of AA. What's the maximum dimensions you want to give up for a box?

As long as it fits in the trunk and I can get to the spare tire in case of a problem whenever I need.

[Notorious97200 339]

Get a good custom box for one of the 15" subs you already have. And sell the other sub.

If you want to run a Fi sub, you'd better get a 12" BL D2 to have a final 1 ohm load on your amp (1000 w at 1 ohm).

The Fi Q will give you plenty lows too, will be more accurate, but will give you a little less output than the BL.

The ssd : I don't know, but it is less powerful than the 2 others.

But how can you tell you did not had low bass because of the sealed box ? It must has been too small for both subs, that's why.

[warock56 0]

Get a good custom box for one of the 15" subs you already have. And sell the other sub.

If you want to run a Fi sub, you'd better get a 12" BL D2 to have a final 1 ohm load on your amp (1000 w at 1 ohm).

The Fi Q will give you plenty lows too, will be more accurate, but will give you a little less output than the BL.

The ssd : I don't know, but it is less powerful than the 2 others.

But how can you tell you did not had low bass because of the sealed box ? It must has been too small for both subs, that's why.

yea, it is too small, and it hits the low notes ~30s but you can barely hear them.

[slim2fattycake 85]

Fi doesn't have dealers. You're thinking of AA. What's the maximum dimensions you want to give up for a box?

As long as it fits in the trunk and I can get to the spare tire in case of a problem whenever I need.

that doesn't tell me anything. Its not like I have your car in my garage. Did you build the box for the two 15s? What's the dimensions on that box? You may be able to get a ported box with the same dimensions as the box you have now.

[warock56 0]

Ill write up the dimensions when I get to my house and measure it, anyways this is what I checked out when thinking about porting 1 15"

http://www.rockfordfosgate.com/rftech/enclosure/2001_PowerHX2enclosures.pdf

But said the port length had to be 17.5 inches and my max trunk opening is 17 inches so I ruled that out, if the port could be wider and have less height I could probably fit it but I dont know how to.

I also went to a shop where the guy showed me what a box for a 15" would look like tuned to 32 hz and yea doesnt look like it would fit, but he probably just wanted me to buy new subwoofers from him what do i know

Anyways I have to go for now but I'll post the numbers up later on today.

im also gonna do some research on the ssd

[slim2fattycake 85]

What is the coil configuration of your 15s? Also, you can do 3.5 cuft NET tuned to 35hz with a single 6" aeroport about 14" long if you have the space. Sub and port displacement should be around .35 cuft and a couple of wooden dowels shouldn't take up anything really.

[warock56 0]

Well don't know what you mean but here is the sub

http://m.crutchfield.com/mt/www.crutchfield.com/p_575RFR3115/Rockford-Fosgate-Power-HX2-RFR3115.html?tp=111&osid=803243554&un_jtt_redirect

[slim2fattycake 85]

It looks to be dual 2 ohm so you can wire it down to 1 ohm to your amp.

[warock56 0]

It looks to be dual 2 ohm so you can wire it down to 1 ohm to your amp.

Oh yea I knew that

Also I like the idea of having an fi sub. I AM A see if my subs sell I would buy it

Edited July 1, 2010 by SomeFiGuy

[Nirvalica 0]

Make sure the subsonic filter isn't too high if you feel like you aren't getting the lows. I did that once....

[warock56 0]

Make sure the subsonic filter isn't too high if you feel like you aren't getting the lows. I did that once....

I didn't have one I thought that was for ported boxes only

[slim2fattycake 85]

it depends on the volume of the box and the power. You may need subsonic filtering even in a sealed box. I think all sub amps need to have this feature. I hate those fixed subsonic filters as well.

[Nirvalica 0]

Make sure the subsonic filter isn't too high if you feel like you aren't getting the lows. I did that once....

I didn't have one I thought that was for ported boxes only

My hifonics amp had a highpass knob and a lowbass knob. The highbass was for running mids and highs and the lowpass was obviously for subs. It was a two channel amp, but I ran it bridged for my sub.

When in lowpass mode, the highpass filter acted as a subsonic filter. Since I never read the manual, I didn't know until almost a year later. I had the subsonic filter up around 40hz, so it filtered out all the lows.

Just something you might want to look at.