[JohnS4]

Wire the voice coils in series to create an 4 ohm load. Can you post a picture of your subwoofer connections?

 

[Elmo299]

Wire the voice coils in series to create an 4 ohm load. Can you post a picture of your subwoofer connections?

Hi John and Rhino,

There is a schematic in the first post how to wire it....

But if you missed it:

 

[Weemanno1]

Did the install yesterday crimped and wired the sub in in series mounted it back down and tested it works well very good oem upgrade!. not to bassey like you have driven through halfords but noticible! just need to close the port up properly as it a little rattley with bubble wrap and a microfibre rammed in the whole.. will get it plastic welded and post up the finished article.. out of interest these i have read work very well with a kicker 8" passive radiator (like a sub but with no connections just the movable cone.. will see if i can get that mounte din the box to add extra tone to the bass! already can notice the definated thud from the spare wheel carpet when you put your hand on it while its on! top upgrade

 

[Elmo299]

It is definitely worth the effort and cost to do this mod.

But for the option price of the B&O package, it already should have sounded like this.

 

[Weemanno1]

your right

It is definitely worth the effort and cost to do this mod.

But for the option price of the B&O package, it already should have sounded like this.

for sure!! especially the horrific price for a paper sub! there having a laugh!

 

[krishay.baxter]

Thinking of doing this to my 2010 sportback. Would be really grateful for more photos of the end result

 

[Weemanno1]

The left hand red goes to the right hand black. The left hand black goes to the wire in the sub enclosure and the right red goes to the other

 

[I CU2]

Hi guys,

It looks like the kicker sub used in this thread has been discontinued and been replaced with these models, I notice that there's now an option of either a 2ohm or a 4ohm subwoofer:

Amazon.com

Amazon.com: KICKER CompRT 6.75"(165mm) Subwoofer, DVC, 4-ohm, RoHS Compliant : Electronics

Amazon.com: KICKER CompRT 6.75"(165mm) Subwoofer, DVC, 4-ohm, RoHS Compliant : Electronics

www.amazon.com

Would the 4 ohm one be the one to get?

 

[JohnS4]

@I CU2 the sub in the thread is a dual 2 ohm unit wired in series to give 4 ohms. Go for the 4 ohm unit.

 

[46lukasz]

Hi guys, sorry to revive this thread but its a really excellent write up. I am looking into a sub upgrade after i upgraded my door speakers and tweeters + added soundproofing to doors, and now the stock sub is not keeping up.

I am considering 3 things: doing exactly this stock sub replacement with the kicker sub, installing an active sub eg. JBL Stage 800BA, or going full out and getting a sub with a separate amp with an enclosure dedicated for the A5 sportback like below.

Each option has its pros and cons, costs, performance, space taken up, ease of install.

I am really tempted with the kicker, i would really appreciate if those of you that installed it in your cars gave me a more detailed description of bass improvements to help me make a decision?

 

[Elmo299]

Hi guys, sorry to revive this thread but its a really excellent write up. I am looking into a sub upgrade after i upgraded my door speakers and tweeters + added soundproofing to doors, and now the stock sub is not keeping up.

I am considering 3 things: doing exactly this stock sub replacement with the kicker sub, installing an active sub eg. JBL Stage 800BA, or going full out and getting a sub with a separate amp with an enclosure dedicated for the A5 sportback like below.

View attachment 184293

Each option has its pros and cons, costs, performance, space taken up, ease of install.

I am really tempted with the kicker, i would really appreciate if those of you that installed it in your cars gave me a more detailed description of bass improvements to help me make a decision?

Dear Lukasz,

It all depends on you, the Kicker will surprise you!
(Especially combine with Audison Mid Bass speakers in the doors) What’s the type of music you listen, get the crazy look from other drivers at a stop sign, but most of all: have you outgrown the “Backwards Baseball Cap Hoody Golf GTI” stage of your life? You are driving an A5. (No offence here, but after 10 minutes I just could not think of other words that would explain it more clearly.)

 

[46lukasz]

I think the person you are trying to describe is what we call over there a "boy-racer", and all the young lads go through their boy-racer phase

So i know exactly what you mean, and I think I am years past that stage.
I am not looking for any "street cred" or trying to look cool when I pull up in front of a gathering.

I just want to enjoy a bit of quality music, as I spend a lot of time on the road. I am looking for some stronger bass so that I can feel the music instead of just hearing it
I mainly listen to dance, house or electro music.

You say it will surprise me and you upgraded from a B&O sub, I only have the standard Audi system so I guess it would be an bigger upgrade in my case.
(not that the B&O sub was great to begin with, but I guess its better than standard)

I really like this solution as its not taking up any extra space and the price is reasonable, but could you describe the difference the kicker made for you?
Could you feel the bass more? Was it noticeably more powerful? Was it like a "wow" difference when you first heard it?

thanks!

 

[Elmo299]

It rattles your car

 

[46lukasz]

i think you have me convinced!

I never even sat in a car with a proper 10" or 12" sub so i have nothing to compare against, but i know that i am after quality sound and not how loud it is. I think it should make me happy.

Just out of curiosity, what would happen if the kicker was connected in parallel? technically 2ohms instead of 4ohms means 2x current draw so twice as much power output?

 

[Double V]

Cannot believe B&O using standard non branded make woofer.

 

[Elmo299]

i think you have me convinced!

I never even sat in a car with a proper 10" or 12" sub so i have nothing to compare against, but i know that i am after quality sound and not how loud it is. I think it should make me happy.

Just out of curiosity, what would happen if the kicker was connected in parallel? technically 2ohms instead of 4ohms means 2x current draw so twice as much power output?

I thought of the same, but there is zero to none documentation on the DSP Amp.

But trust me, I have build showcars for SPL (lets blow out the windshield and ear drums) contests and sound quality (every rattle or strange vibrations/ noise will set you back in points) contests. This works stupidly and surprising well, but I only installed it on Sportbacks.

 

[46lukasz]

You make it sound better and better.

The only thing that worries me now is that I might not get the same result because you had B&O to begin with, and I only have the 10 speaker Audi Audio system. I assume the stock amps are different?

I also changed my radio coding to "dynaudio profile" in byte 4, as I heard that it's the coding for B&O and it did massively increase the sound quality. However I also heard that in some cases with mmi 3g+ it disables the subwoofer adjustment through mmi or even sometimes disables the sub all together. I better check that first.

Do you happen to know anything about that by any chance?

 

[I CU2]

The result of the wiring
View attachment 176698

I am still thinking of a way to remount the protection grill, if I think of something, I will share it.

Next is just screw it in, mount back in the car, select you music, open up all the gain and be amazed of the 90 euro transformation of your sound system. (I should have made a picture when it was done, forgot it in all my excitement)

It is the best thing I have done yet to the car.

Hey there! Just wondering how you could the red and blue connectors onto the old B&O wiring - did you have to cut off the old terminals and crimp them on?

 

[I CU2]

Hey guys, I had a look at the enclosure but can't find the vented port that you guys are closing up. Can anyone point to where it is on the box?

 

[andycparker]

Hey guys, I had a look at the enclosure but can't find the vented port that you guys are closing up. Can anyone point to where it is on the box?

Just doing mine today and it is at the end of one of the thin bits.