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Old 02-08-2015, 12:24 AM   #1
NJboneless
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Default 2015 Impreza Subwoofer help!

So I just picked up my new Impreza sport limited from the dealer today. Very happy with the car so far, but shoooot....I ordered all the upgraded speakers including that kicker sub in the back.... and I cant for the life of me find a way to adjust that sub to sound HALF decent.

The sub just totally overpowers the car speakers, and sounds horrible. Equalizer barely helps at all. Is this a known problem or am I doing something wrong?

If I need to sell this sub and buy something from crutchfield and wire it myself, I definitely will.

Suggestions?
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Old 02-08-2015, 09:40 AM   #2
d0ntt3ll
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I might be interested. Shoot me a pm for price, pic, etc. also someone will tell you to fill that profile of yours.
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Old 02-08-2015, 10:06 AM   #3
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Have you done the hidden menu mods?
https://www.youtube.com/watch?v=AnYFs6OpGGs

That should help, if it doesn't you may want to look at doing a sound processor if you want to keep your stock unit, or looking at upgrading the head unit.

Most of us on here that ended up changing out the stock head unit were pretty happy with the stock speakers. I still recently upgraded my speakers as well as adding an amp, but I wanted more.
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Old 02-08-2015, 11:04 AM   #4
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Originally Posted by millertime359 View Post

Most of us on here that ended up changing out the stock head unit were pretty happy with the stock speakers. I still recently upgraded my speakers as well as adding an amp, but I wanted more.
+1 this. I installed a pretty basic Pioneer bluetooth head unit (~$100) for my 2010 WRX and was blown away at how much of a difference it made. The stock speakers are surprisingly competent if you have a good head unit and the ability to custom tune your EQ. I filtered out all lows from my stock speakers and let my sub handle that, and found that the stock speakers are plenty for mids and highs. I have a single Kicker S10L3 solobaric sub powered by a Rockford Fosgate R500X1D amp to give you an idea of what I'm running.

If you're happy with the sub, I would definitely say keep it and replace your head unit.
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Old 02-08-2015, 11:52 AM   #5
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Thanks for the replies. I will be sure to update profile info

I do have one problem....I have a sport limited, so its got the 7" touch screen, so that video to "unlock" the speaker system doesnt apply to my car.

So I just read up a bit on the factory sound processors...they look like a decent option, but would it let me control my sub at all?

The best way to describe the sub and what it sounds like, is its just been thrown into the back, with absolutely no crossover or volume control so it just plays whats thrown at it. Right now the crossover is too high, and also the volume is WAY to high. I get a headache listening to JAZZ. Dont even ask what electronic or rock sounds like.
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Old 02-08-2015, 02:03 PM   #6
millertime359
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Google hidden menu mods. They are there for the touch screen for what I understand.

The JBL MS-8 is suppose to be decent. Basically what it does is take the crap tune that the head unit has and flat lines it. It then gives you a multi-band EQ.

I would do some more searching as well, I seem to recall there is more tuneablity in the touch screen for the sub. It's would be worth digging into before you buy or sell anything else.
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Old 02-08-2015, 03:21 PM   #7
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Searched loads of forums but still cant find any hidden menu mods that apply to the touchscreen units.....

@d0ntt3ll.....as you can see I am trying to fix this problem before I go ahead and sell, but I might consider selling it if I still cant get this problem fixed in the next week or two. Ill be sure to PM you if I decide to sell. Thanks
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Old 02-08-2015, 04:02 PM   #8
Guzzi 1
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Wasn't there a piece of wiring that was supposed to reduce that from Subaru? (I thought I remembered reading that somewhere here.)

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Old 02-08-2015, 04:57 PM   #9
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Thanks for suggesting that. I will contact my dealer and ask if there is any wiring that might help.
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Old 02-09-2015, 07:12 PM   #10
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I ordered a sub volume control knob from amazon. I am going to wire it in and see how it goes.

Any ideas if I should be wiring the control before its runs through the amp, or after?
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Old 05-21-2015, 10:54 PM   #11
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Default Old sub fits in 2015 Imprezza limited sedan with Nav

SO, I've been following these forums regarding the kicker sub, because I really wanted it. Not after these stories. Instead, I dug out my old under seat sub from my 99 Forester which I had stored in the basement.

It's the small rectangle one. I ordered the two piece breakout harness from David at ae64.com, and tapped into the rear speaker wires, constant +12v and ground. The harness clips right in to the back of the Fujitsu Ten Navigation Infotainment Starlink business, and the sub works perfectly. it's only 80w, but it fits perfectly in the cavity under the driver's seat and I turned the bass down on the eq. No physical modification required and no need for the bracket to hold it in place. Pretty perfect in that little cavity under the seat.

Here's a pic of the one I used. There's one on ebay for $80 as of this posting:

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Old 05-22-2015, 01:39 PM   #12
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Quote:
Originally Posted by NJboneless View Post
I ordered a sub volume control knob from amazon. I am going to wire it in and see how it goes.

Any ideas if I should be wiring the control before its runs through the amp, or after?
I am experiencing the same issue on my 14' Sport premium. Interested to see if the volume control helps with the sub. Head unit has Bass set to -8 and it's still overpowering.
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Old 05-22-2015, 02:22 PM   #13
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Quote:
Originally Posted by MNImprezaSport15 View Post
I am experiencing the same issue on my 14' Sport premium. Interested to see if the volume control helps with the sub. Head unit has Bass set to -8 and it's still overpowering.
Quote:
Originally Posted by NJboneless View Post
I ordered a sub volume control knob from amazon. I am going to wire it in and see how it goes.

Any ideas if I should be wiring the control before its runs through the amp, or after?
this has been mentioned several times on the forum. A search would have helped you from purchasing unnecessary items

http://heubergersubaruparts.com/Suba...5892&makeid=32

http://techinfo.subaru.com/proxy/782...assLimiter.pdf
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Old 05-22-2015, 03:32 PM   #14
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Originally Posted by bobditts View Post
this has been mentioned several times on the forum. A search would have helped you from purchasing unnecessary items

http://heubergersubaruparts.com/Suba...5892&makeid=32

http://techinfo.subaru.com/proxy/782...assLimiter.pdf
If you read a but further you will also find that those subaru bass limiters are a waste of time. They barely make a difference, if at all, and are a waste of $15. I actually got one myself as per the suggestion of Kicker support, and it didnt work at all for me, as well as many others.

Quote:
Originally Posted by MNImprezaSport15 View Post
I am experiencing the same issue on my 14' Sport premium. Interested to see if the volume control helps with the sub. Head unit has Bass set to -8 and it's still overpowering.

So yes, I did resolve my sub volume problem with an L pad attenuator (yes, I dabble in electronics and work full time IT support, and had never heard of one of these before...). So anyway, I guy from kicker actually suggested this fix.

I purchased one of these. Wired it in between the amp, and the driver like this:

As you can see its pretty simple, just need a bit of decent wire (I think I used 16 gauge) and some crimp on wire terminals. I drilled a small hole into the top of the plastic sub encloser and mounted the dial there.

I also purchased some polyfill from walmart and stuffed it into the plastic encloser. This helped immensely to mellow out the bass, instead of being really harsh at some frequencies and too soft on others. So now I have my car equalizer on completely flat, and have my L pad on the sub turned about 1/4 on. This gives me a very neutral bass and it sounds a heck of a lot better than before!

Only unconfirmed side affect of the L pad is I believe it caused my sub to cut off at about 41hz. I say unconfirmed because I guess I never did a frequency test before I installed it, but like I said it rapidly cuts off at about 40-41hz so that tells me its probably the L pad or something. The mod is still TOTALLY worth it, and so far I am happy with how it sounds. I am not happy with Subaru for selling such an incomplete and untuned speaker system however!

Hope this helps ya and let me know if you have any questions!

EDIT: Also worth mentioning if it makes any difference, is I have a sport limited so it has the touchscreen head unit, not the standard one. I believe the standard HU actually had more control over the subwoofers volume compared to the touch unit.

Last edited by NJboneless; 05-22-2015 at 03:47 PM.
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Old 05-24-2015, 10:33 AM   #15
stratman750
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Originally Posted by NJboneless View Post
If you read a but further you will also find that those subaru bass limiters are a waste of time. They barely make a difference, if at all, and are a waste of $15. I actually got one myself as per the suggestion of Kicker support, and it didnt work at all for me, as well as many others.




So yes, I did resolve my sub volume problem with an L pad attenuator (yes, I dabble in electronics and work full time IT support, and had never heard of one of these before...). So anyway, I guy from kicker actually suggested this fix.

I purchased one of these. Wired it in between the amp, and the driver like this:

As you can see its pretty simple, just need a bit of decent wire (I think I used 16 gauge) and some crimp on wire terminals. I drilled a small hole into the top of the plastic sub encloser and mounted the dial there.

I also purchased some polyfill from walmart and stuffed it into the plastic encloser. This helped immensely to mellow out the bass, instead of being really harsh at some frequencies and too soft on others. So now I have my car equalizer on completely flat, and have my L pad on the sub turned about 1/4 on. This gives me a very neutral bass and it sounds a heck of a lot better than before!

Only unconfirmed side affect of the L pad is I believe it caused my sub to cut off at about 41hz. I say unconfirmed because I guess I never did a frequency test before I installed it, but like I said it rapidly cuts off at about 40-41hz so that tells me its probably the L pad or something. The mod is still TOTALLY worth it, and so far I am happy with how it sounds. I am not happy with Subaru for selling such an incomplete and untuned speaker system however!

Hope this helps ya and let me know if you have any questions!

EDIT: Also worth mentioning if it makes any difference, is I have a sport limited so it has the touchscreen head unit, not the standard one. I believe the standard HU actually had more control over the subwoofers volume compared to the touch unit.
If you turn the attenuator all the way down, does the sub sound the same as it did before it was installed? I'm just wondering if the attenuator is transparent or if it still affects the sound even when turned down all the way just by being present.

That really sucks that Subaru didn't allow for more adjustment parameters from the factory.
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Old 05-24-2015, 01:01 PM   #16
mauldin
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I did the same mod on my kicker sub. Definitely a must do DIY. I plastdipped the volume knob to make it look factory.


Last edited by mauldin; 05-24-2015 at 01:06 PM.
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Old 05-26-2015, 01:47 AM   #17
NJboneless
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Originally Posted by stratman750 View Post
If you turn the attenuator all the way down, does the sub sound the same as it did before it was installed? I'm just wondering if the attenuator is transparent or if it still affects the sound even when turned down all the way just by being present.

That really sucks that Subaru didn't allow for more adjustment parameters from the factory.
Sorry for not replying sooner. With the attenuator turned all the way down (so full volume), the volume of the sub is exactly the same as before it was installed. But like I said it now cuts of at about 40hz no matter what I set the attenuator at. I never really payed attention before I did the mod but I have never seen a sub naturally cut off that quickly without an equalier or crossover etc, so I'm pretty sure the specific attenuator I used is messing with my lower end frequencies causing it to cut off early.

Mauldin- what components did you use for your mod? Looks very clean!
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Old 05-26-2015, 12:28 PM   #18
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Sorry for not replying sooner. With the attenuator turned all the way down (so full volume), the volume of the sub is exactly the same as before it was installed. But like I said it now cuts of at about 40hz no matter what I set the attenuator at. I never really payed attention before I did the mod but I have never seen a sub naturally cut off that quickly without an equalier or crossover etc, so I'm pretty sure the specific attenuator I used is messing with my lower end frequencies causing it to cut off early.

Mauldin- what components did you use for your mod? Looks very clean!
I used a RadioShack 100w speaker volume control from eBay.com and I plastidipped the knob. I layed on the PD thick, let it almost dry and used my fingerprints to add texture.

How did you measure there was a 40hz cut off? I did not notice any difference in mine.

Edit: used a YouTube video to test if there was a cutoff on the subwoofer using the RadioShack volume controller.
.
Using the above linked video I did not hear/see a cutoff. At 10mhz-15mhz I could see the speaker vibrating and don't think I can hear a frequencies that low. From 20mhz-100mhz no detectable cut in sound. The crossover I added cuts off at 100mhz and using a different sound frequency video, I was able to verify that my low pass crossover (capacitor and coil) is working.

Last edited by mauldin; 05-26-2015 at 01:04 PM.
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Old 05-26-2015, 01:45 PM   #19
NJboneless
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Originally Posted by mauldin View Post
I used a RadioShack 100w speaker volume control from eBay.com and I plastidipped the knob. I layed on the PD thick, let it almost dry and used my fingerprints to add texture.

How did you measure there was a 40hz cut off? I did not notice any difference in mine.

Edit: used a YouTube video to test if there was a cutoff on the subwoofer using the RadioShack volume controller.
.http://youtu.be/ukQ6OSs3dWo
Using the above linked video I did not hear/see a cutoff. At 10mhz-15mhz I could see the speaker vibrating and don't think I can hear a frequencies that low. From 20mhz-100mhz no detectable cut in sound. The crossover I added cuts off at 100mhz and using a different sound frequency video, I was able to verify that my low pass crossover (capacitor and coil) is working.
Thats the exact same frequency test I did, but mine sounds great down to 42hz, as soon as it hits 41 to 40 it just fades to nothing. I might try replacing my control as it really affects how some music sounds haha.

Just really sad in general that we need to mess with this stuff in the first place. Subaru seriously make some solid vehicles and I love my car but even my friends have had a good time making fun because I buy a brand new car and first thing I have to do is mod the sub. lol
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Old 05-26-2015, 02:33 PM   #20
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Thats the exact same frequency test I did, but mine sounds great down to 42hz, as soon as it hits 41 to 40 it just fades to nothing. I might try replacing my control as it really affects how some music sounds haha.

Just really sad in general that we need to mess with this stuff in the first place. Subaru seriously make some solid vehicles and I love my car but even my friends have had a good time making fun because I buy a brand new car and first thing I have to do is mod the sub. lol
I can't complain. I bought my sub for cheap off of someone who hated it. Lol..

But if I paid $500 plus install for a OEM completely untuned subwoofer on a new car, I would be pissed and demand they fix it. The Subaru fix is an even bigger joke. My $10 radio shack controller works better than their patch cable.
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Old 05-26-2015, 06:19 PM   #21
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But if I paid $500 plus install for a OEM completely untuned subwoofer on a new car, I would be pissed and demand they fix it. The Subaru fix is an even bigger joke. My $10 radio shack controller works better than their patch cable.
Yeah well I was one of the unfortunate people to drop the $500 on one. ugh

I did ask that they fix it, but all they did was make me buy their "sub limiter cable" which did absolutely no good. Past that, nobody at their dealer knew anything about the subs being too loud and claimed that they never heard of that issue before.
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