Powered Sub w/ B&O System

[Probmxstyle]

I've been thinking about installing a powered sub in the storage area behind the spare tire. Does anyone have experience running the leads going to the stock amp to a powered sub? Is the signal filtered by the amp or by the headunit?

This is the sub I've been thinking about installing:
https://www.crutchfield.com/S-KQ92Wc...ne-PWE-S8.html

[connoisseurr]

Are you looking to install an additional subwoofer to the factory sub, or replace the existing sub?

I'm working in a fiberglass box that will mount to the passenger side tail light access cubby. I've also considered the spare tire area but I do enjoy the extra storage space for "crap".

I've tested a simple unit by tapping the leads from the factory amp to the factory sub and the performance is great. Will have bass control up in the cockpit area and still retain minor bass control within the MMI system.

Also Alpine makes great drivers however I've always used JL products. I've done plenty of sub installs and JL has yet to fail me or the vehicle owner. I've had a handful of Alpine amps sh*t the bed.

Check out JL's drivers and compare with the Alpine you have selected. Either would be a great choice.

http://www.jlaudio.com/car-audio-subwoofer-drivers

[cmoore86]

I put this in mine a while back. Super easy install and sounds great. A more integrated sub box like above is probably better as I had to lose my spare tire. I don't care about that as I can't really use it with the wheels I run anyway. From what I remember that Alpine unit should fit and you can keep the spare.

[Probmxstyle]

Are you looking to install an additional subwoofer to the factory sub, or replace the existing sub?

I'm working in a fiberglass box that will mount to the passenger side tail light access cubby. I've also considered the spare tire area but I do enjoy the extra storage space for "crap".

I've tested a simple unit by tapping the leads from the factory amp to the factory sub and the performance is great. Will have bass control up in the cockpit area and still retain minor bass control within the MMI system.

Also Alpine makes great drivers however I've always used JL products. I've done plenty of sub installs and JL has yet to fail me or the vehicle owner. I've had a handful of Alpine amps sh*t the bed.

Check out JL's drivers and compare with the Alpine you have selected. Either would be a great choice.

http://www.jlaudio.com/car-audio-subwoofer-drivers

My plan is to unhook the factory sub and run the audio leads to a power subwoofer. I really wanted to get a powered JL setup, but they don't seem to have a unit small enough to fit in the storage area while keeping the spare tire.

[Probmxstyle]

I put this in mine a while back. Super easy install and sounds great. A more integrated sub box like above is probably better as I had to lose my spare tire. I don't care about that as I can't really use it with the wheels I run anyway. From what I remember that Alpine unit should fit and you can keep the spare.

That is my train of thought as well. You put yours exactly where I want to place mine, but I would like to retain my spare tire.

[freesole]

I put this in mine a while back. Super easy install and sounds great. A more integrated sub box like above is probably better as I had to lose my spare tire. I don't care about that as I can't really use it with the wheels I run anyway. From what I remember that Alpine unit should fit and you can keep the spare.

Looks great! Do you have more info on your install? I would like to read more about it in case I do make that upgrade in the future

[cmoore86]

That is my train of thought as well. You put yours exactly where I want to place mine, but I would like to retain my spare tire.

That Alpine should fit. I only need about 1" to get mine to fit with the spare. But install is really easy. Just tap the OEM sub speaker wires for the sound like you said. Then I used the power socket on the passenger side of the trunk for remote turn on as I didn't want to rely on the auto turn on from the amp.

[cmoore86]

Looks great! Do you have more info on your install? I would like to read more about it in case I do make that upgrade in the future

Thanks! Need to tidy up the wiring still. What info do you need? It's super easy with the battery back there. That's a powered sub I put in (10" w/400 watts @.25 ohms). Used the OEM sub speakers wire for sound, positive from the battery, ground from right below the trunk latch in the middle. Then I tapped the positive wire from the power outlet in the trunk for remote turn on. I actually found a way to keep the spare tire back there but I needed to remove the handle to pull the cover up as the bottom of the handle was hitting the grill of the speaker.

[Probmxstyle]

Thanks! Need to tidy up the wiring still. What info do you need? It's super easy with the battery back there. That's a powered sub I put in (10" w/400 watts @.25 ohms). Used the OEM sub speakers wire for sound, positive from the battery, ground from right below the trunk latch in the middle. Then I tapped the positive wire from the power outlet in the trunk for remote turn on. I actually found a way to keep the spare tire back there but I needed to remove the handle to pull the cover up as the bottom of the handle was hitting the grill of the speaker.

If that is the powered 10" model, do you think the powered 8" box would fit with the spare?

http://www.jlaudio.com/acp108lg-w3v3...-systems-93330

[cmoore86]

If that is the powered 10" model, do you think the powered 8" box would fit with the spare?

http://www.jlaudio.com/acp108lg-w3v3...-systems-93330

I think so. I don't remember seeing the 8" model when I got mine but then again I was aiming for the 12" at first. The dims look good on the 8" but what I had to do was wedge the box in with the spare. They were completely pushing against each other. But it worked except for the cover closing. So my concern would still be that possibly the same problem might happen. I think you should good though.

[BarryT82]

Someone did a DIY on swapping out the OEM subwoofer with an aftermarket one. They used the OEM box and had to cut it a little bit, but they said it worked well.
http://www.audizine.com/forum/showth...work-required)

[zachf88]

Someone did a DIY on swapping out the OEM subwoofer with an aftermarket one. They used the OEM box and had to cut it a little bit, but they said it worked well.
http://www.audizine.com/forum/showth...work-required)

This was not B&O system though

[jomama229]

Someone did a DIY on swapping out the OEM subwoofer with an aftermarket one. They used the OEM box and had to cut it a little bit, but they said it worked well.
http://www.audizine.com/forum/showth...work-required)

wow!



just did a quick search on this pic from post #5 by spijun and found it's source to be from this thread on AW: http://www.audiworld.com/forums/q5-s...2845644/page2/

that looks like a nice install - reading up on it now.

[TITAN_Q5]

Looks great! Do you have more info on your install? I would like to read more about it in case I do make that upgrade in the future

Awesome ... dude can u give me details on this I want the exact setup ..... please


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[Spacemonkey]

Use JL TW5 thin woofers under there and you won't be disappointed.


Sent from

[Choiboy]

Is there anyway to turn up the volume or level of the base B and O subwoofer in the trunk? I hate the bass is so low even when i crank up the bass on the stereo.

[TITAN_Q5]

Use JL TW5 thin woofers under there and you won't be disappointed.


Sent from

Ok am kinda a noob at this sound stuff ... so please pardon the dumbness ... it's not intended.

1) do I need a new amp
2) what cables will be needed
3) can I fit this in the original sub box or should I get a new box for it
4) can u point me to a setup guide for this if possible please




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[connoisseurr]

Ok am kinda a noob at this sound stuff ... so please pardon the dumbness ... it's not intended.

1) do I need a new amp
2) what cables will be needed
3) can I fit this in the original sub box or should I get a new box for it
4) can u point me to a setup guide for this if possible please




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1) I would 100% use a dedicated mono amp for any subwoofer installation.
2) You will need an amplifier power kit (contains positive and negative leads, remote turn on wire, and RCA cables)
3) the JL TW5 is a 13" subwoofer driver and will require some sort of new enclosure. Factory enclosure cannot be retained.
4) I have seen a setup guide for the Q5 non-BO but wiring to the BO system will be easy peasy since everything you need is already in the trunk area. No crazy long wire runs needed (unless you wish to run a remote bass knob up to the driver area.

[Spacemonkey]

Before I picked up my Q5, I ran the TW5 in my A4 powered by a JL HD 900/5 which has 500 watts for the mono sub channel. I bought the TW5 in the JL prefabbed enclosure, but I hear that bigger enclosures sound better. Nevertheless, it was more than enough power and definitely sounded awesome.. I actually considered using the TW5 in the Q but decided to run an Image Dynamics IDMax 12 with the more available space. Sonic Electornix has a NVX amp kit for a good price.


https://www.sonicelectronix.com/item...l-Amp-Kit.html

https://creativeaudio.net/mobile/enc...edge-sealed-2/


This is the TW3 and I had this installed as well. It's plenty.
https://creativeaudio.net/mobile/enc...edge-sealed-2/

If you sign up for the newsletter for Creative Audio, you get 10% off. You can call them too and they might come off the price. They sold the TW5 to me for around $450.

Sent from

[xpocky24]

wow!



just did a quick search on this pic from post #5 by spijun and found it's source to be from this thread on AW: http://www.audiworld.com/forums/q5-s...2845644/page2/

that looks like a nice install - reading up on it now.

This is super clean!

[Jonathan S]

I did a custom install with a 12" sub -- 8" and 10"s don't go low or loud enough for my ears

http://www.audizine.com/forum/showth...ight=subwoofer

[IMG][/IMG]

[TITAN_Q5]

But is the trunk usable after this ?


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[Jonathan S]

This is what is looks like with the cover on it -- trunk is fully useable

[IRogue]

So has anyone confirmed if the Alpine (PWE-S8 or PWE-V80) or the Kicker box https://www.amazon.com/dp/B007LQWSYC...ing=UTF8&psc=1 will fit in the space behind the factory spare if you remove the plastic tray insert? (please post pics!) I am not interested in losing my spare or paying $600-1000 for a custom box (very nice work above though with the JLs built around the spare!). I looked at the dimensions of the JL 8" Micro Sub and I do not think it will fit (18-1/2"W x 11-1/8"H x 5-1/8"D) with the spare in place - the height is the problem and is the same as the 10" power wedge....

[xpspc]

So has anyone confirmed if the Alpine (PWE-S8 or PWE-V80) or the Kicker box https://www.amazon.com/dp/B007LQWSYC...ing=UTF8&psc=1 will fit in the space behind the factory spare if you remove the plastic tray insert? (please post pics!) I am not interested in losing my spare or paying $600-1000 for a custom box (very nice work above though with the JLs built around the spare!). I looked at the dimensions of the JL 8" Micro Sub and I do not think it will fit (18-1/2"W x 11-1/8"H x 5-1/8"D) with the spare in place - the height is the problem and is the same as the 10" power wedge....

Kicker TCWRT82 will fit perfectly with spare tire inside
https://www.amazon.com/dp/B00FAUGDRY
That's what i use before my current setup
And sounded good.
I got that enclosure for sale
Used for few hours in perfect condition and very cheap
Pm if You are interested

Subwoofer dia (in, cm) 8, 20
Impedance (Ohms) 2
Power Watts (peak/RMS) 600/300
Sensitivity (dB 1w/1m) 85.5
Box Top Depth (in, cm) 4-3/8, 11.1
Box Bottom Depth (in, cm) 5-3/8, 13.5
Box Height (in, cm) 16-1/8, 41
Box Width (in, cm) 9, 23

Recommended Amplifiers
12CX3001 or 41DXA2501

My current setup:
amp and two-channel processor
[IMG][/IMG]
[IMG][/IMG]
sub new
[IMG][/IMG]
sub old

control unit

[tcm glx]

What's the story on that Rockford fosgate box. Looks great!!

[IRogue]

xpspc, any chance you have a pic with the Kicker box installed? The dimensions are 18x10.5x7.5 which is bigger than -

Alpine PWE-S8 ($299) 13.5 x 9 x 2.75
Kicker 11HS8 ($299) 14.25 x 9.5 x 3.25
Rockford PS-8 ($299) 14.5 x 9.5 x 3.5

Both of the JL Audio boxes (8" and 10") ($429-449) are 11.125 wide and doubtfully will not fit (missing by 1" or more)?

[xpspc]

xpspc, any chance you have a pic with the Kicker box installed? The dimensions are 18x10.5x7.5 which is bigger than -

Alpine PWE-S8 ($299) 13.5 x 9 x 2.75
Kicker 11HS8 ($299) 14.25 x 9.5 x 3.25
Rockford PS-8 ($299) 14.5 x 9.5 x 3.5

Both of the JL Audio boxes (8" and 10") ($429-449) are 11.125 wide and doubtfully will not fit (missing by 1" or more)?

look at post #18
http://www.audiworld.com/forums/q5-s...2860447/page2/
not my install but same placement

[IRogue]

^ thank you!

[tcm glx]

What's the story on that Rockford fosgate box. Looks great!!

Any info? Is that a custom box?

[xpspc]

Any info? Is that a custom box?

Yes-custom, MDF board sealed subwoofer enclosure
P3SD2-10 10" Punch P3S Shallow 2-Ohm DVC subwoofer because of shallow mounting depth (3.5inch)
P3SD2-10 features Dual 2-Ohm voice coils for wiring flexibility and 300 Watts RMS power handling
A sealed box is the easiest to design and build, and protects the woofer against subsonic bass that can affect its performance.
Two main challenges — making sure it contains the proper volume of air, and controlling the cabinet resonances.

[IRogue]

reposting a few pics of the Kicker box installed with spare. (so the 3 powered boxes above should all fit).

The Kicker 8" CompRT specs -

◦Box Top Depth (11.1 cm): 4-3/8"
◦Box Bottom Depth (13.5 cm): 5-3/8"
◦Box Height (41 cm): 16-1/8"
◦Box Width (23 cm): 9"

[IRogue]

Kicker TCWRT82 will fit perfectly with spare tire inside
I got that enclosure for sale
Used for few hours in perfect condition and very cheap
Pm if You are interested

pm'd

[1Jeffersonc]

Kicker TCWRT82 will fit perfectly with spare tire inside
https://www.amazon.com/dp/B00FAUGDRY
That's what i use before my current setup
And sounded good.
I got that enclosure for sale
Used for few hours in perfect condition and very cheap
Pm if You are interested

Subwoofer dia (in, cm) 8, 20
Impedance (Ohms) 2
Power Watts (peak/RMS) 600/300
Sensitivity (dB 1w/1m) 85.5
Box Top Depth (in, cm) 4-3/8, 11.1
Box Bottom Depth (in, cm) 5-3/8, 13.5
Box Height (in, cm) 16-1/8, 41
Box Width (in, cm) 9, 23

Recommended Amplifiers
12CX3001 or 41DXA2501

My current setup:
amp and two-channel processor
[IMG][/IMG]
[IMG][/IMG]
sub new
[IMG][/IMG]
sub old

control unit

Could you provide some more info on the sub level control, is the panel custom as it looks that way and what is the switch below the level knob? more detailed pics available?
Thanks

[Perry01]

To improve my base I added a 10” powered sub yesterday. I wasn’t expecting window shaking base but mainly deeper lows. The install took all of 20 minutes. I removed the stock sub in the spare tire and used its inputs for the powered sub and since the battery is just inches away, it made for an easy way to supply power and ground.

[SQive]

Does it have the automatic on/off?

[Pittdawg]

To improve my base I added a 10” powered sub yesterday. I wasn’t expecting window shaking base but mainly deeper lows. The install took all of 20 minutes. I removed the stock sub in the spare tire and used its inputs for the powered sub and since the battery is just inches away, it made for an easy way to supply power and ground.

Just curious, why was it necessary to remove the stock sub when you added the powered sub? Is it not possible to have both connected?

[Perry01]

Does it have the automatic on/off?

Yes it does.

Just curious, why was it necessary to remove the stock sub when you added the powered sub? Is it not possible to have both connected?

The stock sub was small, thin paper and couldn’t handle much power. This one is 10”, 200 watts RMS and fits nicely under the rear compartment.

[billm0066]

FYI Cerwin Vega now makes a spare tire subwoofer and JBL is releasing one soon. I was going to order the Cerwin Vega one but a local car audio shop said he heard it at CES and said the JBL one sounded better. He sells JBL products so not sure if it's biased or not. This car audio shop also said he can use a LOC and make the sub sound better with b&o. He said the LOC prevents the system from adjusting bass volume when you turn it up.

[KnightR]

I put this in mine a while back. Super easy install and sounds great. A more integrated sub box like above is probably better as I had to lose my spare tire. I don't care about that as I can't really use it with the wheels I run anyway. From what I remember that Alpine unit should fit and you can keep the spare.

So I just got my 10” box same as yours but I can’t seem to fit it under the floor. Did you have to remove the grill to get the floor down or modify anything to make it fit?

Thanks