what sub

mirra540ryder

i want head turnin bass and decent clearity what one will deliver that will be in a seald box in a small trunk of a honda civic

2 polk mono 15's
http://www.polkaudio.com/caraudio/products/mm2154dvc/

or 2 of these hifonics 12's
http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?Source=googlebase&ProductID=13997


thanks

oh is onlinecarstereo safe??? the only place i can find the hifonics sub other than sonic electronics but they look to cheap to be true so im staying away

mirra540ryder

k well nobody has replied yet and i got two more subs im looking at:p

2 Alpine SWR-1242D
http://www.crutchfield.com/S-wSdnkPAo01i/cgi-bin/prodview.asp?i=500SWR1242

or 2 Boston Acoustics G212-4
http://www.crutchfield.com/S-Z4YBqYvBOmU/cgi-bin/prodview.asp?i=065G2124

Narco_snow

I actually have one of the type-r's in my car right now and have had it for quite a while. they're pretty decently loud and clear. even though i have it in a completely wrong enclosure and underpowering it by 150 watts. this sub also has a lot of potential, check out thecaraudiobox.com they have a bunch of spiffy videos of one or two type-r's doing 150+ db

mirra540ryder

k that alpine looks pretty sweet it runs 500 watts rms at 4 ohms do you think this amp will power two of them its 4000 watt amp by lanzer 2x 1000 watts@4ohm
and we allll no even me that when u buy big power amps for cheap they dont have all the power so i figure give it twice the power from a cheap amp and turn the bass boost down and im good right:D ??? here is the link

http://www.caraudiodeals.com/product_info.php?products_id=370

Greg Peters

While I won't slam Lanzar (because they used to make some OK stuff once upon a time), I think you'd be better off going with something more mainstream for reliable power.

There are a bunch of threads to search for budget quality amps, and I'll bet that one isn't on the list.

If you don't mind ordering one to try it out first, it may be an OK experiment if you've got some extra money to play with, but something like this:

http://www.crutchfield.com/S-8gQ7l4mAB1X/cgi-bin/ProdView.asp?g=120&I=489AP1000M

might be a safer bet for one Type R. Two Type Rs would go nicely with two of these amps.

You usually get more distortion or induced noise when you go rock bottom on your amplifiers. If you intend to go with a quality sub, going with a less than quality amp will probably dissapoint you, performance-wise.

This would be a better choice for the Alpine Type R sub-

http://www.crutchfield.com/S-8gQ7l4mAB1X/cgi-bin/ProdView.asp?g=120&I=500MRPM650

Just get one sub. The Type R you linked to is a Dual 4ohm VC (for wiring to a 2ohm or 8ohm load), and if you went with two of them you'd need an amp capable of a proper 1000 watts rms that is at least 2ohm stable to get the most out of them. The suspension on the latest Type R is quite stiff, requiring a fair amount of power to generate good output.

But...you could always go with the Type S subs and a lower powered amp. The '06 Type S subs are very similar to the previous generation of Alpine Type Rs.

mirra540ryder

sorry XXXXX sorry "scratch this post" next one down

mirra540ryder

scratch that last part SORRYY i found 2 profile amps i can afford one under powers a tad and the other over powers by 100 its for one of the Type R 12 500 rms ive herd its better to over power than under power but i read that on the internet

http://www.crutchfield.com/S-MRR0KDDP8mQ/cgi-bin/ProdView.asp?search=PROFILE+AP1000&i=489AP1000

http://www.crutchfield.com/S-MRR0KDDP8mQ/cgi-bin/prodview.asp?i=489AP1200

Greg Peters

The problem with these two amps and your intended Type R:

Both of these Profile amps are only stable to 4 ohms in bridged mode, and your sub is dual 4 ohm voice coils.

You'll only be able to wire this sub to present either a 2 ohm or 8 ohm impedance load to your amp, which means at 2 ohm your bridged multi-channel amp will go into protect mode, and at 8 ohm your amp will only output half it's rated power into the sub.


The link for the Profile 1 Channel in the previous post will give this sub its ideal (or at least rated) rms wattage if sub is wired for a 2 ohm load, and will do so without becoming unstable.

The trick is deciding what you want (one sub? two?) and properly matching what you want with a compatible amplifier within your chosen budget. Keep this in mind if you are going to look at other amp/sub combinations. If you want to maximize a 2 ohm stable amplifier's output, one DVC sub wired for a 2 ohm load (or two SVC 4 ohm subs, wired for a 2 ohm load) will give you pretty good output from modest equipment.

If you want to run a 2 channel amp that's only 4 ohm stable in bridged mode, look for one single voice coil sub rated at 4 ohms.

mirra540ryder

that last part u told me helped me out alot now i have it narrowed down to 4 options im leaning towards the second one on here but that is just cuz the sub looks cool what would be my best choice:rolleyes:

---

2 polk audio mono 15" MM2154
http://www.cardomain.com/item/POLMM2154

1 PROFILE AP2000 320 watts rms x2 @ 4ohm
http://www.crutchfield.com/S-kpFi1vSkw5o/cgi-bin/ProdView.asp?search=PROFILE+AP2000&i=489AP2000

or 2 PROFILE AP1000 480 watts RMS x 1@ 4ohm
http://www.crutchfield.com/S-PDGne4Tkvfi/cgi-bin/prodview.asp?i=489AP1000

---

2 Boston Acoustics 12" G212-4 svc
http://www.crutchfield.com/S-kpFi1vSkw5o/cgi-bin/ProdView.asp?g=500&I=065G2124&search=Boston+Acoustics++G212

2 Profile AP600 300 watt rms x1 @ 4ohm
http://www.crutchfield.com/S-kpFi1vSkw5o/cgi-bin/ProdView.asp?search=Profile+AP600&i=489AP600

---

1 Boston Acoustics 12" G512-4 svc
http://www.crutchfield.com/S-kpFi1vSkw5o/cgi-bin/ProdView.asp?search=Boston+Acoustics+G512%2D4&i=065G5124

1 Profile AP1000 480 watts rms x1 @ 4ohm
http://www.crutchfield.com/S-kpFi1vSkw5o/cgi-bin/ProdView.asp?search=Profile+AP1000&i=489AP1000

---

1 polk audio sr 124 svc
http://www.polkaudio.com/caraudio/products/sr124svc/

1 Profile AP1200 600 watts rms x1 @ 4ohm
http://www.crutchfield.com/S-kpFi1vSkw5o/cgi-bin/ProdView.asp?search=Profile+AP1200&i=489AP1200

---

mirra540ryder

anybody????? just looking for personal opinion's i dont got alot of time before i gotta order it plz help:eek: :eek: :eek: :eek:

Greg Peters

If you want to drop the coin, get the Polk SR sub. If you want to go with one single voice coil sub, get a two channel class A/B amplifier capable of a clean 700 watts RMS bridged for the 4 ohm load. If you want more output per dollar, go with a dual voice coil model and pair that to a mono amp with around 700 clean watts RMS rating at 2 ohms.

That said, go with a better amp than Profile- at least consider a nice MTX- if you want to go high end on your sub.

Too much to spend? A Polk Momo DVC will do nicely with a mono amp capable of only 400 watts RMS at 2 ohms.

Both of these subs are designed to be used in a sealed enclosure. This will provide a little less output than subs specifically designed to be used in ported boxes (but will handle their rated power a little better). 12" woofers in a sealed box still provide some satisfying bottom end.

If you visualize a boomy bottom end in your system that is designed to "get you noticed", you'll probably want a ported enclosure. The Polk db series may be better suited to ported boxes, require less power, cost less (and still sound pretty good). One or two db124 subs in a ported box will be a more "SQL" way to go. The db series also come in SVC and DVC variants that follow the same recommendations (amplifier type) as the subs listed above. The dbs will also be better suited to the lower cost Profile amps.

mirra540ryder

Ok well im not trying to be a snob but that diddnt really help me u just told me to get a better amp sry but im not ganna get another amp them are the 4 choices im getting and i gotta know by sept.6 2 weeks from today so what im asking is what one of them combos would be best/loudest/ and deepest notes/ still leaning towards the 15's but might not be able to afford them so i will get the 12'' polk mono's so far anybody know any better or just wanna make a suggestion plz plz do i wanna get the best bang for my buck cuz im poor lol i only get money on my birthday:eek:

PolkThug

mirra540ryder wrote:

i want head turnin bass and decent clearity what one will deliver that will be in a seald box in a small trunk of a honda civic

2 polk momo 15's
http://www.polkaudio.com/caraudio/products/mm2154dvc/

I'm running a pair of these in my Stang, in a sealed box. I'm running them in a 4ohm load configuration going to a bridged Polk 300.2. I like them a lot and feel that they output really clean bass.

If you're looking to save a little, there's usually new Polk amps on ebay.

PolkThug

MacLeod

Get the 2 Polk 15's with the Profile AP2000

mirra540ryder

iight yeah i was hopin somebody would recomend the 15's that is what i really want.. this is to polk thug like i got a few questions bout them if you dont mind answering.. im ganan build a seald box from that wood that like is saw dust and then mased together with glue cant think of the name but like how does it keep up with quick bass songs cuz i like to listin to techno bass songs like bass 305 and stuff like that and do you know if people can here u when you pull up at there house cuz that is what i want:D cuz that is what i think is cool and you think 320 watts is enough to power it i heard that underpowering is not good its better to go with more i got till sept.6 or maybe a few days after before order thxxx:cool:

PolkThug

mirra540ryder wrote:

build a seald box from that wood that like is saw dust and then mased together with glue cant think of the name

Its called MDF Also, get a caulking gun and use Liquid Nails on all your seams.

I'm running about 220 rms to each of mine so I'm sure you'll be fine.

Your sealed box will help with the quick bass response. I listen to things like Bass Mechanic, etc, and the subs don't have a problem.

mirra540ryder

well im in the procces of building my box i have the top bottom and back cut but i was cutting the front and my saw broke but anywho. this is the size of it.


32" wide

17" deep

16" tall

and a 3/4" devider

its for two mono 15"s svc does this sond ok for size?:rolleyes:

mirra540ryder

k well i got my saw to work finaly and i got my box all cut out and put together with nails and liquid nails. all i have to do is cut out the circle's with a jig saw and carpet it and its compleatly done. yayy:D

mirra540ryder

ok. well i finished my box cut the holes out and everything pix are in my other fourm in the thing above car subwoofer link. i re-mesured and my devider is to the left a half inch or so. is that going to effect anything. im so bumbed right now plz tell me im not scrwed it took me two days to make and like 25 bux

MacLeod

Do the math and figure up how much of a difference it made. If the divider is big enough and one side is .5 and the other .9 you might be able to hear a difference.

However, I kinda doubt it. You can always throw some extra pollyfill in the left side and that would make up for the difference.

mirra540ryder

its a kinda big devider. 15" - 15" square 3/4 think. the box is for two 15's

MacLeod

OK. According to my calculations from what youve told me, the let chamber is 1.9 ft3 and the right chamber is 2.0

Thats not going to make a difference at all.

Thats also bigger than what is spec'd by .5 ft3 but you should still be ok.

Dont sweat it, youre fine.