I was looking for aftermarket sub for rdx and i found this forum, although its mdx so im assuming it's the same depth and speaker size like rdx:

heres the link.. i dont know if im allowed to post this but i think this will be usefull to anyone planning to upgrade their sub:

http://www..org/forums/showthread.php?s=&postid=49537

and also i found this on bestbuy and i think this will fit easily on our rdx:

http://www.bestbuy.com/site/olspage....=1202650466180


Any thoughts on this?

Thanks

 

What size is the RDX woofer? I thought it was an 8".

 

It was 8" same as MDX, but the forum that i read said it's only looks like an 8" but its 10" if you measure from the metal of the speaker..

I also read some customer review about this new kicker and this 10" fit on his mdx

http://www.crutchfield.com/p_2067C10...111&tab=review

 

Here's from another forum and ill just paste them here! lol
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MY SITUATION:
I wanted to use the factory location (without getting a "box") and since I'm just an ordinary guy and not "hardcore-audiofile" per se, I wanted to improve the sound with minimal cost and minimal upgrading. I did the "Infinity Speaker" upgrade last Dec. and though that improved the sound, the bass was still very-lacking. So since then, I've been looking and learning to upgrade the factory subwoofer.

MY PROBLEM:
Upgrading the speakers was very simple (screwdriver, some dynamat, and a utility knife) but the subwoofer was a whole different animal.

There is the issue of ohms. The factory subwoofer is a 2 ohm and most after markets that will fit in that location are 4 ohms which means the resistence is "doubled."

Another issue is location. Because it's not an enclosure, I needed a "free air" subwoofer. Though they are not that difficult to find, there is very limited space due to the shallow depth of the location.

And another big hinderance is my lack of car-audio knowledge. For a newcomer into the world of car-audio, it is very intimidating to ask seemingly "basic" question like: what is dual-voice coal, power handling, rms, etc.

MY SOLUTION:
After posting for help on this forum, I decided to "just do it" and buy a subwoofer. I considered these factors when I made my decision.
1. Sensitivity- Since the OHMs (resistence) was going to go from 2 to 4 ohms, I needed a subwoofer which had a very high sensitivity.
2. Depth - According to this forum, others had tried to install a subwoofer with 5" depth and failed, but other's were able to install a sub with a 4 11/16" depth.

My choice of subwoofer:
Cerwin-Vega Stealth III S-10.4 because it had a high sensitivity of 93 DBA, a depth of only 4 1/8", and not only that, and it was on special for only $50 at crutchfield.com (otherwise around $90).

INSTALLING THE SUBWOOFER
Although the factory sub is also 10 inches, the metal bracket around the factory-woofer will not allow the aftermarket subwoofer to fit properly. I ended up going to a stereo shop and getting them to make a wood ring that mounted between the factory location and new subwoofer. Because of the thickness of the wood-ring, I probably could have fit a 5" deep subwoofer.

After installing the subwoofer, the sound was very disappointing in that it sounded the same and IMO, it sounded quieter and more muffled than the stock unit. My final conclusion was to get an amp. The stereo shop workers warned me that without getting a box, the sound improvement even with the amp would be very nominal.

I got an amp but I realized the installation was somewhat beyond my expertise. It required new wiring and some modifying of the old wiring to the factory amp that powered the factory subwoofer. I had the pro's do it. It took 3 hours but the labor was only $50 total. I checked around and the going rate seems to be $50-$55 (al & eds, bestbuy, circuit city, goodguys, etc).

The installer gave me the option of having the amp installed either under the front passenger seat or the headrest compartment behind the thirdrow. I opted for the front passenger seat location since I know that someday I will eventually spill something in the cargo.

THE RESULTS
What a tremendous difference that amp made!!! Being that it was the factory location, the improvement even surprised the installers since they figured it would be minimal. The sound improvement is substantially louder and clearer than before. I can "feel" the bass from the driver seat and it's even better from the middle row.

WHAT I WOULD DIFFERENT
If I knew that I was going to end up getting an amp, I think I would have gotten a better subwoofer since "sensitivity" and ohm wouldn't have been such an issue.

SUMMARY
For those who are curious:
1. Subwoofer - CERWIN VEGA STEALTH III S-10.4 = $50
2. Wood-ring for the SUBWOOFER = $50 (It took them only 15 minutes to make but they said it was considered "custom work.")
3. Amp - ALPINE MRP-T130 = $197 (including amp, installation-labor, all wires, etc.)

Though the damage was right under $300, I think this is a low-end figure to upgrade the subwoofer especially since an aftermarket amp is also must with the subwoofer...

 

Sorry if i got u confuse, i think older mdx model has 10" sub and the current model is 8".

I might go to Best buy this weekend and let the technician look at my sub see if 10" will fit without customizing box.

 

Does anyone tried kicker Compvt 8" , it has a great review in crutchfield but i would like to get more opinion from our member.

http://www.crutchfield.com/p_2068C8V...111&tab=review

Thanks

 

Do you have pictures? How easy was it to get to the subwoofer itself? What all did you have to take apart?

Also...where is the actual subwoofer amp itself? OR is it ran all of one main amp?

 

Its all run off one amp that is located in the centre console in front of the shifter.

 

Has anyone had success in replacing just the sub itself without messing with the amp?

Any particular model sub that proved worth it?

 

I think that memphis audio now has a slim 10" sub. I don't know how it will fit though.

 

I forgot about this thread lol

10" sub will definitely fit but it will not sound good if you dont put your sub in a box. I already test the new Pioneer 10" sub (slim), and it doesnt sound good w/out box.

 

So basically there is not "drop in" that will make it any better?

 

they told me they could make custom box for me but i didnt order coz i wanna see it first before i order. They havent make any custom box for rdx yet so i dunno what its look like, but they told me they will match the carpet so it will look good and stealth.

 

If the stock encloser is sealed properly, why would one of the new "slim subs" on the market not sound good? Unless you gotta feed it more power that the factory amp can give it! I am looking at upgrading the sub and dont want to use anything other than the factory location/encloser!

 

Yes you need to upgrade your amps too if not it will sound the same as stock. Pioneer 10' sub shallow is 800 watts so stock enclosure cant handle the vibration.

If you will upgrade just the sub the power output will be the same, sound will be the same also.

 

Yeah, it would make sense to increase the power to an after market sub!
But some of these new subs are made to work in/with a small area behind it so i would think that once the sub doesnt take too much of a nominal rms then it shuold sound quite good provided you add an amp to drive it!
Same thing would go for the rest of the speakers in the vehicle!

 

How do you get the sub to replace it.

How much did you have to take apart? Any pics?