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Old 06-11-2013, 05:15 PM
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Very happy with sound improvement just replacing speakers only

I just finished doing a simple swap of factory speakers in my 2013 Trailhawk with the Alpine 9 speaker setup. To start, I'm no audiophile, but I definitely was disappointed in the sound compared to my 2004 4runner I had just traded in. I've seen several others post questions about simply replacing factory speakers and whether it would help at all without adding an amp as well.

I didn't want to do anything too involved or over my head, so I did a simple swap of the dash speaker, the front 6x9's, left the stock tweeters, and replaced the rear doors.

I'm amazed at how much brighter and full the sound is. As others have said, make sure you are playing audio with a high bit rate to make the judgment.

So for those out there like me who want to give something relatively easy a try to help the sound, I would suggest at least replacing the rear door speakers. That seemed to make the biggest difference. I used Infinity's because of high sensitivity and 2 ohm rating to match the factory amp. There was a big difference right away. The dash speaker was a simple 10 minute job. The fronts I used Infinity's again, but held off on replacing the tweeters just yet for a couple of reasons. Some guys were saying that the sound was a little too bright with new components. Also, placing the Infinity tweeters meant doing some enlarging of the hole to mount the speaker, and I wasn't sure I wanted to go that far yet.

Maybe I'm not taking advantage of a full range signal, or pumping enough wattage to really make these speakers shine, but even to this ear it is a big difference and I'm really pleased with the results for relatively little work.

Thanks to Onlyina from this forum for his tips on speakers and getting the job done.
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Old 06-14-2013, 04:13 PM
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Re: Very happy with sound improvement just replacing speakers only

What model speakers did you go with in the front, rear doors, and dash?
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Old 06-14-2013, 10:09 PM
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Re: Very happy with sound improvement just replacing speakers only

dash:
MTX TDX35 Thunder Dome Series 3-1/2" 2-way speakers at Crutchfield.com

fronts:
Infinity Kappa 60.11cs 6-3/4" component speaker system — also fits 6-1/2" openings at Crutchfield.com

rear:
Infinity Kappa 62.11i 6-3/4" 2-way car speakers — also fit 6-1/2" openings at Crutchfield.com

Crutchfield includes the mounting adapter brackets and wiring harness adapters. I still have to install the tweeters upfront. I am just listening with the factory tweeters for now. I did not install the passive crossovers yet (maybe don't need the way it sounds)

Infinity also has the reference series of the coaxials and components for less $$. I just did some overtime and decided to splurge a bit. The Infinitys run at 2 ohm impedence which matches the factory amp output. They have high sensitivity numbers meaning they don't take a lot of power or volume to sound good, but can be driven with an aftermarket amp later if you like. The Kappa series offers a little lower end of frquency spectrum compared to the reference series.

To see what frequencies are put out at what dB levels for each of the speakers, refer to the graphs in this thread:
Factory Frequency Response

I still think that unless you are a really picky audiophile, this is a relatively inexpensive swap that I think anyone will appreciate as a real improvement without getting too involved. I still may try a subwoofer sometime now that I've learned a little about this stuff from all the help on this forum.
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Old 06-15-2013, 09:14 AM
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Re: Very happy with sound improvement just replacing speakers only

Let us know if there is a difference in sound when you replace the tweeter, and whether or not you install the crossover.
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Old 06-15-2013, 06:15 PM
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Re: Very happy with sound improvement just replacing speakers only

I don't think I'll be using the crossover as long as it's a straight swap with the factory wires. The tweeter and woofer are two separate channels coming into the door, so they have already been processed by the factory amp and HU. Doesn't seem to make sense to add another crossover - and I don't know how you could wire it. It don't think it would make sense to attach both the tweeter and woofer channels into the 'IN' terminals on the crossover, and then take the separate feeds from there.

Now if you completely rewire the system and have a summated single channel coming into the door, then certainly use the crossover and have it split the signal for your tweeter and woofer.

It looks like you have room to mount the crossover in the door in a couple of places; I'd probably mount right under the speaker opening and screw into the door.

I'm still liking the sound with the factory tweeters right now. Not convinced that I want to permanently enlarge the pillar trim to mount the Infinity tweeters to fit. The coaxials in the rear doors also have really added an upper range that wasn't there before. The Infinity's have a nice little gimmick where the tweeter on the coaxial rotates with a slight angle that lets you aim the higher end frequencies to some degree. There also is a built-in button on the tweeter that either allows or attenuates the tweeter by 3dB. I think they are a good match for the factory amp.
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Old 06-16-2013, 05:41 PM
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Re: Very happy with sound improvement just replacing speakers only

So is the dash speaker 4-ohm instead of 2? I can't seem to find any 2-ohm 3.5'' speakers.
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Old 06-16-2013, 06:38 PM
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Re: Very happy with sound improvement just replacing speakers only

Quote:
Originally Posted by joyfil2001 View Post
So is the dash speaker 4-ohm instead of 2? I can't seem to find any 2-ohm 3.5'' speakers.
I wouldn't be concerned about an ohm or 2 here or there. That is a nominal rating by the manufacturer. The impedance is a curve, so by picking 2 different points the same speaker could be called 2 ohm by one manufacturer and 4ohm by another. As long as its a car speaker, the load presented to the amp should be fine. If anything 4 ohm is easier to drive than 2 ohm.

For the dash speaker, my personal opinion is they are nearly always too forward, and need to be turned down from factory. If you have individual control over centre speaker volume, that's no problem, if you don't and the stereo will only fade front to back, then try and choose a less efficient front speaker.
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Old 06-16-2013, 07:41 PM
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Re: Very happy with sound improvement just replacing speakers only

The dash speaker is 4 ohms, while the door replacements are all 2 ohm. The dash really fills in only when I fade at least 2 toward the front, but then it really does make a difference.

The MTX went down to a little lower frequncy than some of the others I've seen mentioned here. Also, it has a pretty high sensitivity rating meaning that it will sound good even at lower volumes.
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Old 06-17-2013, 01:01 AM
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Re: Very happy with sound improvement just replacing speakers only

Anyone know if the 2014 overland system door speakers are 2 ohm as well haven't installed my system yet but I have some 2 ohm Focal's I just picked up I want to see how they sound with the factory amp if their still 2 ohm in the doors.
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Old 06-17-2013, 08:57 PM
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Re: Very happy with sound improvement just replacing speakers only

Which focals do you have?

Also, when you say that the factory speakers are 2 ohms, do you mean 2 ohms to the woofer and 2 ohms to the tweeter, separately? Are they each 2 ohm loads?
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Old 06-18-2013, 12:05 AM
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Quote:
Originally Posted by Jrunr View Post
Which focals do you have?

Also, when you say that the factory speakers are 2 ohms, do you mean 2 ohms to the woofer and 2 ohms to the tweeter, separately? Are they each 2 ohm loads?
I have the 165 KRX2

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Old 11-13-2013, 02:54 AM
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Has anyone tried to fit the 3.5" Infinity Kappa 2 way in the dash? Model 32.9cf, it's 2ohm.


I would be interested to know how the Focals sound in the stock system...

Edit. I noticed there is an Infinity 3.5" reference series as well that should definitely fit. Anyone tried this one?
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