A5 B&O sub / aftermarket sub questions

motomanmatt9 · 11-29-2010, 11:24 PM

I just bought a new 2011 audi a5, with the bang and olufsen sound package. What i was wondering was if it is a better idea to take out the current sub (by the rear window) and replace it with a 10 inch sub like a jl, or just do a trunk setup. The only problem i see with replacing it, is it is not sealed so itd be a free air, does jl even make free airs anymore? The other question is what would be a good sub, i want something powerful (i really like the w7) but i dont want to destroy my new car through the vibrations, especially the trunk. Also, would it overpower the B&O system? The other thing is i want to still have a lot of trunk space, would it be possible to mount a thin line sub in the side, like where the nav electronics are hidden?

QuattroWerks · 11-30-2010, 05:05 AM

This is what I did:

http://forums.audiworld.com/showthread.php?t=2794390

John P. (TT 225) · 11-30-2010, 06:23 AM

QW's method would certainly be an improvement.

JL does not make an Infinite Baffle subwoofer any more. You'll want to find a sub with low Fs, high Qts, and alot of xmax. I've been exploring all the options over the past several months, and I've found that I would have to special order what I want. There are really no true IB subs in 10"--the ones out there are compromises. My only concern here is mounting depth and speaker diameter--in other words, will I be able to clear the rear window with such a substantial speaker?

A few days ago I posted a link to a fiberglass enclosure for the driver's side trunk pocket.

Another option is using a prefab enclosure or having one built.

motomanmatt9 · 11-30-2010, 11:10 AM

Thank you both, QW i like the idea of your setup, would it be possible to do something like that with say a 10w7, and just have a small box to seal the sub, my only concern would be would it have any problems because its firing directly up towards the window?

m444 · 12-01-2010, 05:52 PM

I posted this;

http://forums.audiworld.com/showpost...3&postcount=74

Which is part of this extensive thread on sub installs. Both the JL & Kicker subs have been used in IB mode with success. The JL Audio 10W1V2-8is probably easier, but the 10" 8 ohm Kicker Comp sub is approved for IB installs and works fine also.

http://forums.audiworld.com/showthre...+Install+Guide

11-30-2010, 05:05 AM	#2
QuattroWerks AudiWorld Member Garage is empty, add now Join Date: Feb 2008 Posts: 142	This is what I did: http://forums.audiworld.com/showthread.php?t=2794390 __________________ 2008 Audi S5 Custom-Tuned by FarnbacherLoles / AWE Downpipes / Milltek Exhaust / BMC Filter / European Headlights / H&R Coilovers/ 20MM/25MM Spacers / Blinder X-Treme Laser Jammer / STaSIS Rear Sway Bar / Xenon/HID Fog Light Conversion/ Custom Subwoofer Enclosure w/Dynamat Everywhere / Lüsch Fog Light Grilles / JHM Short Shifter / Michelin Pilot Super Sports

11-30-2010, 06:23 AM	#3
John P. (TT 225) AudiWorld Super User Garage is empty, add now Join Date: Feb 2001 Posts: 6,669	QW's method would certainly be an improvement. JL does not make an Infinite Baffle subwoofer any more. You'll want to find a sub with low Fs, high Qts, and alot of xmax. I've been exploring all the options over the past several months, and I've found that I would have to special order what I want. There are really no true IB subs in 10"--the ones out there are compromises. My only concern here is mounting depth and speaker diameter--in other words, will I be able to clear the rear window with such a substantial speaker? A few days ago I posted a link to a fiberglass enclosure for the driver's side trunk pocket. Another option is using a prefab enclosure or having one built. __________________ John P. (TT 225) 2011 S5 Coupe Quartz/Magma/Sport Diff/Carbon/B&O/6-Speed Manual • A.W.E. Tuning Exhaust • H&R Street Coilovers • Vossen CV3 20"x10.5" x 4 (first in the U.S. on all four corners) • Dipstick mod • Clear bra -2001 Audi TT quattro (Deposit placed in 1998; Car sold in 2008) 2001 Audi TT quattro (225hp) (Deposit placed in 1998; Car sold in 2008)

12-01-2010, 05:52 PM	#5
m444 AudiWorld Senior Member 2011 Audi S4 Join Date: Jul 2008 Location: CA Posts: 1,271	I posted this; http://forums.audiworld.com/showpost...3&postcount=74 Which is part of this extensive thread on sub installs. Both the JL & Kicker subs have been used in IB mode with success. The JL Audio 10W1V2-8is probably easier, but the 10" 8 ohm Kicker Comp sub is approved for IB installs and works fine also. http://forums.audiworld.com/showthre...+Install+Guide __________________ 11 S4 P+, DSG, SD

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11-30-2010, 11:10 AM	#4
motomanmatt9 AudiWorld Newcomer Garage is empty, add now Join Date: Nov 2010 Posts: 2	Thank you both, QW i like the idea of your setup, would it be possible to do something like that with say a 10w7, and just have a small box to seal the sub, my only concern would be would it have any problems because its firing directly up towards the window?