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Great write up!

If you want to save a little money and time, just change out the front 5 speakers and the sub. The only function of the rear speakers is fill, which the OEM speakers can handle. The sub is way more important to the overall balance of the frequency spectrum. I would suggest using a JL Audio 8W1v2-4 or a JL Audio 8W0-4.
 
The problem is I already own a JL Audio 8W3v3-4 so I'm going to try to use that for the SUB. Also, if I'm spending the dollars I'm going to replace all the speakers.

Going to take the door apart now.

Wish me luck.
 
OK, so I removed the Passenger Door Panel as the excellent instructions described. A couple extra things I suggest. First, I would have a few Car Door Trim Inserts on hand because they do break, in fact, I broke one. Thankfully I still had a dozen or so from an earlier car speaker upgrade.

Second, I would remove the inside cover behind the Rear View Mirror because there is a piece of the Door Panel that goes up under it. To remove just insert a flat bladed screwdriver under the front edge (wrapped in tape) and pull the panel off or you can use a door panel removal tool, which is what I did. The first photo below shows the door with that cover removed.

The second photo shows the measured depth of the rear edge of the speaker ring that is part of the door. This looks doable, I might even be able to cut out the old speaker and mount my new speakers to factory speaker ring.

The third photo shows the measured depth of the front edge of the trim ring that extends behind the door panel to the speaker. The rear upper rear corner of this trim ring is flush with the door.

Going to have to think this through before I make my purchase though it looks like the JL Audio C5-650 speakers might work.

While I had the door apart I looked around and there isn’t much sound deadening material on the Door Panel, the metal part of the door that the panel attached to or the outside metal of the door. To really do this right I’m going to have to invest a couple of bills on RAAMmat. I will cover the back of the Door Panel and both metal surfaces of the door itself.
 
Dont be such a pansy newbie.
No experience + new car =/= pansy :p...
Wow does this look like a pain in the ass.
How long would it take a noob to do each door and the center?
Would take me 2+ days :p

OK, so I removed the Passenger Door Panel as the excellent instructions described. A couple extra things I suggest. First, I would have a few Car Door Trim Inserts on hand because they do break, in fact, I broke one. Thankfully I still had a dozen or so from an earlier car speaker upgrade.

Second, I would remove the inside cover behind the Rear View Mirror because there is a piece of the Door Panel that goes up under it. To remove just insert a flat bladed screwdriver under the front edge (wrapped in tape) and pull the panel off or you can use a door panel removal tool, which is what I did. The first photo below shows the door with that cover removed.

The second photo shows the measured depth of the rear edge of the speaker ring that is part of the door. This looks doable, I might even be able to cut out the old speaker and mount my new speakers to factory speaker ring.

The third photo shows the measured depth of the front edge of the trim ring that extends behind the door panel to the speaker. The rear upper rear corner of this trim ring is flush with the door.

Going to have to think this through before I make my purchase though it looks like the JL Audio C5-650 speakers might work.

While I had the door apart I looked around and there isn’t much sound deadening material on the Door Panel, the metal part of the door that the panel attached to or the outside metal of the door. To really do this right I’m going to have to invest a couple of bills on RAAMmat. I will cover the back of the Door Panel and both metal surfaces of the door itself.
Thanks for the extra tips.
 
I took the door panel off again and measured the Factory speaker and figured out the JL Audio C2-600 components will fit almost exactly in the speaker mount if I cut the old speaker out of the mount using a Dremel tool. Thus I will be replacing the just speaker drivers using the Factory mounts.

I ordered two pair and will custom mount the tweeters in the rear doors.

I also ordered a pair if JL Audio C2-350x 3.3" Coaxials of which one will go into the dash. Anybody want to purchase the extra one? It will be for sale for $35 delivered, half of what I paid for the pair.

In addition I ordered speaker baffles for all of them because I have found they tighten up the bass response so I will include a 3.5" speaker baffle with the one I'm selling.
 
I took the door panel off again and measured the Factory speaker and figured out the JL Audio C2-600 components will fit almost exactly in the speaker mount if I cut the old speaker out of the mount using a Dremel tool. Thus I will be replacing the just speaker drivers using the Factory mounts.

I ordered two pair and will custom mount the tweeters in the rear doors.

I also ordered a pair if JL Audio C2-350x 3.3" Coaxials of which one will go into the dash. Anybody want to purchase the extra one? It will be for sale for $35 delivered, half of what I paid for the pair.

In addition I ordered speaker baffles for all of them because I have found they tighten up the bass response so I will include a 3.5" speaker baffle with the one I'm selling.
DANP, how do those speakers sound compared to the Infinity speakers that the original poster used? I might be interested in buying your extra speaker, but right now I'm leaning towards Infinity.
 
I haven't seen anyone do a DIY post on replacing the sub-woofer. I assume those JL subs you guys recommend will all fit inside the sub-woofer enclosure in the trunk?

I already have an Infinity Perfect 12 sub in a closed box, which I would gladly use, but I don't want to lose all that trunk space if I can still get good quality bass out of the enclosed area.
 
DANP, how do those speakers sound compared to the Infinity speakers that the original poster used? I might be interested in buying your extra speaker, but right now I'm leaning towards Infinity.
I haven't heard the Infinity speakers so I can't confirm which is better though the price would suggest the JLs would be a better sound. I would suggest that you consider separates instead of coaxial speakers with an added tweeter because the high frequency balance and sound stage would be affected.

One of the things I try to go by when I'm choosing speakers is how much they weigh because that is a sign of how big the magnet is. SonicElectronics shows the shipping weight to be 6 lbs for the Infinity 6032cf pair he used and 8 lbs for the JL Audio C2-600 pair. I've used JL Audio for years and have never been disappointed. I can confirm that the JL Audio TR series is really good for a lower price speaker which is closer to the price of the Infinity speakers mentioned above. I installed the TR series in a lady friend's car 6 months ago and though they didn't sound as good as the C5's I had in my last car they sounded really good for the money.

The reason I'm going with the C2 series is they come in a 6" speaker that isn't quite as deep as the C5 series and it also will fit inside the factory speaker mount. Also, I have always used JL Audio.

BTW, you could still use the Infinity speakers in the doors and use the second JL from the set I'm purchasing in the dash. There isn't any rule that says you have to use the same speakers everywhere though you should use them in a matched pair.
 
I haven't seen anyone do a DIY post on replacing the sub-woofer. I assume those JL subs you guys recommend will all fit inside the sub-woofer enclosure in the trunk?

I already have an Infinity Perfect 12 sub in a closed box, which I would gladly use, but I don't want to lose all that trunk space if I can still get good quality bass out of the enclosed area.
I plan on opening the sub enclosure to see if the JL Audio 8W3v3 will fit or not. If it will fit I plan on replacing the sub driver tomorrow. I will post photos and info tomorrow afternoon.
 
You guys do realize that the square footage is going to be off...not all 8" woofers require the same amount of space. if the sq footage is off, its not going to sound the best that it can.

just a word of caution.

I have used co axials in the back of my elantra and they work, but i wish i had done a send set of components...i'll def be putting in TWO sets of Diamond audio 6.5's with baffles when i get the car.

you better make sure the baffles fit though...looks like there is very limited room back there.
 
You guys do realize that the square footage is going to be off...not all 8" woofers require the same amount of space. if the sq footage is off, its not going to sound the best that it can.

just a word of caution.

I have used co axials in the back of my elantra and they work, but i wish i had done a send set of components...i'll def be putting in TWO sets of Diamond audio 6.5's with baffles when i get the car.

you better make sure the baffles fit though...looks like there is very limited room back there.
I assume you mean cubic feet and I know. First order of business is to make sure it fits and get measurements of the cubic feet. Then I will reduce the cubic feet if too large or either install a ring under the sub or add a port if too small.

I have found that to get it really right you have to live with it and make the adjustments in increments.
 
If anyone is gonna replace the sub, please also create a DIY so we can have a complete thread. Thank you. :)
 
Working on it. I have the whole rear of the car apart but ran out of light. One thing I do know is the sub is a dual coil sub so I think the rear speakers are connected directly to the sub and the factory amp must be 4 or 5 channel, if it powers the front speaker.

I'll let you guys know more tomorrow when it gets light again.

One thing is for sure, this is a lot of work just to replace the left rear speaker, not so much extra if you are going to replace the sub also.

Also, have you guys seen the spare? I was shocked. I never thought a spare could be so small. :(
 
Looks good.. I'm very faint of heart.. Will NOT be attempting this myself :p
I'm with you on this newbie,my sound at my age is loud enough LOL
 
As promised, though late, are photos of the Sub Box with Measurements.

FYI, the Factory Sub is a Dual Voice Coil Sub Driver so to use a Single Voice Coil Sub Driver you will have to connect both Black and Red wires together, parallel, both Red Wires to + and both Black Wires to -. Hopefully this won't cause a problem with the amp or strap the Rear Speakers together causing MONO output for the Rear Speakers. I'm currently researching purchasing the JL XD700/5 AMP so this issue will be resolved soon.

Explanation of Photos . . .

SubPrep_BackSide.jpg
Photo of the Back Side of the Sub Box. There is a lot of room here so a custom box could be built. Also, the Sub Box is two plastic pieces screwed together so you could open it up to modify the inside for adjusting Cubic Feet, etc.

SubPrep_MeasureAcross.jpg
SubPrep_MeasureDeep.jpg
Photos of the Sub Mount with the Sub Removed.

SubPrep_MeasureWithSpeaker.jpg
SubPrep_MeasureWithSpeaker_CustomRing.jpg
Photos of the Sub Box with the Sub mounted. One with an overlay showing a custom Speaker Ring I will be constructing today. The JL Audio 8W3v3 won't fit down in the slot so I have to build it up. The slot is 1/2" deep. Also, I need the extra depth for the JL Sub.

SubPrep_FactorySub_JLSub_Comparison.jpg
Photo of the Factory and JL 8W3v3 for Comparison.

Off to the Hardware Store to get some 1/2" MDF to make the ring.
 

Attachments

All the speakers, except the C2-350x for the Dash, including the Sub are installed. They need more power, especially the Sub, the Sub Box says the Factory Sub is good for 20 W RMS and 40 W Peak while the sub I replaced it with is good up to 250 W Continuous. I'm purchasing a JL XD-700/5 this week to fix this problem.

I'll post photos, etc. sometime this week.

My current impression is there is much more clarity, even at high volume. Not enough PUNCH yet but that will come with the new AMP. It feels like the Factory Amp is running out of gas.
 
Just ordered all the speakers on Amazon! (the Infinity's from the OP) Along with some extra speaker wire for the extensions, it was right around 200 dollars.

I'm VERY intrigued by a great DIY on the subwoofer. Is there a magical subwoofer that will fit perfectly within the encloser and still provide kick-butt bass? Probably not...
 
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