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B&O sub replacement

hungabunga Aug 9, 2018 at 11:13 PM

  1. hungabunga

    hungabunga New Member

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    The B&O system is not very good when compared to the HK in the bmw, this is most likely due to the bmw having 2 under seat subs.
    The current sub does do well with hip hop or r&b hheavy bass notes and wants to rattle more than make useful bass.
    I have read plenty of threads on the b8 and 8.5 but nothing on the B9. Is there any info available on the power going to the sub and I am guessing it will be dual 8ohm.
    I have found a home audio sub https://www.connevans.co.uk/product/5566531/MZMSPH250CTC/Hi-Fi-subwoofer--2x-150W-MAX--2x-8-Ohm
    Which may be better. The other option is to go for a car audio sub and run a separate amp. The only issue is that there is mention of internal mics that cause issues and need to be disconnect but I am hoping they can be coded out.
    Does anyone have wiring diagram for the B9 B&O system

    Thanks
    Sully
     
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  3. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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  4. hungabunga

    hungabunga New Member

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    I listen to a wide range of music lol but the B&O does struggle with heavy low notes.
    I read that thread already but not giving much info
    I have decided to go the sub + amp route and have ordered a 8inch kicker compc as they are apparently well suited to infinite baffle setups. I have a audiocontrol lc2i line output converter and will pick up a small mono block amp. I think this will allow me to lower the bass setting so the rest of the speakers are not being pushed, I don’t have separate sub control in the mmi and as you know it’s difficult to get Audi to update.
    Car is booked in as one of my door speakers is blowing and Center speaker has a buzz so once that’s sorted will go ahead with the install.
    I am concerned about the active noise cancellation causing issues and ideally would like to disable via vcds rather than disconnect cables.
    How far did you get with your research and have you decided to upgrade the sub.
    Sully
     
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  5. hungabunga

    hungabunga New Member

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    Just found this for disabling ANC

    Go to module 47 (sound system), adaptation, and from drop-down menu go towards the very end (long list) and select 'active noise reduction; activation'. Set it to OFF. Turn ignition OFF and then back ON.
     
  6. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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    My comment on your taste of music was tongue in cheek. Did you post up your question in AudiWorld though, those guys seem to be in front of us as far as any mods are concerned. A quick search turns up this https://www.audiworld.com/forums/search.php?searchid=11163921
    Sorry I have no plans to mod my ASS...
     
  7. hungabunga

    hungabunga New Member

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    I know it was tongue in cheek, I spend far too much time on forums to take offence.
    That is a very useful search and it turns out the sub is a 10" instead of an 8" so just cancelled my sub order.

    How come you decided not to change the sub in the end
    Thanks for you help
     
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  8. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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    All I do is listen to radio 6 and never have the volume up high...
     
  9. Simonwhite2000

    Simonwhite2000 2017 S5 Coupe Daytona Grey

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    I do think the BnO is a bit naff compared to the offerings from BMW and Merc. Even the plastic speaker grilles annoy me.
     
  10. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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    Of course there is always the rest of the cheap plastic naff festooned inside both their cars...
     
  11. h1r4

    h1r4 Active Member

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    Tried looking for this on obd11, can't find it anywhere
     
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  13. h1r4

    h1r4 Active Member

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    I have gone this route aswell. However a bigger set up. Where are you tapping off for speaker inputs?
     
  14. hungabunga

    hungabunga New Member

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    I am not sure it is available in ODB11 can see it as per this thread https://www.audiworld.com/forums/s6...-199/using-obdeleven-anc-calibration-2943773/

    I will be ordering a vcds cable soon so will have a play and let you know but at the moment everything is on hold as car is going in to Audi to get a few bits sorted before warranty runs out

    Sully
     
  15. hungabunga

    hungabunga New Member

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    What is your setup like? I am trying to stay away from big mods, have still got the dc lvl 4 in custom ported box with 1200rms amp in the garage. I will prob at some stage upgrade the 4x6 mid bass drivers in the front doors with some decent 6.5” mids but want to see how balanced it is with a sub first.
    I will be taking the high level inputs by tapping into the existing sub connector using quick connect splice connectors.
     
  16. h1r4

    h1r4 Active Member

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    I have a 1250w rms sub, which is being powered by a 2500w rms amp. Let me just say that it sounds good! I wanted to change the front speakers but I'm not sure what to change them with and what adapters to use
     
  17. hungabunga

    hungabunga New Member

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    Is the sub mounted on the rear deck or sub box in boot and what did you use to get input signal
    If you are in the northwest would be good if I could have a listen

    Sully
     
  18. h1r4

    h1r4 Active Member

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    I've got a ported box for a 12inch sub. I did tap off the b&o subwoofer in the boot. But I've changed it to get the signal from the front speakers it has a much better signal and picks up more bass notes imo

    I'm in South East mate
     
  19. hungabunga

    hungabunga New Member

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    Is the signal at the front not crosses over to cut out bass freq as I can see a need for the tiny 4x6 midbass drivers trying to play them.
    How and where did you tap the wires at the amp or at the door speakers?
     
  20. h1r4

    h1r4 Active Member

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    My front door speakers are still in its place. However in these speakers there are two spade connectors which I've disconnected and put my own wire with a space connector. This wire then goes to the lc2i in the boot. Which gives me my signal. The signal I'm getting is good imo, if I could replace the lc2i with a something better I would but that will cost too much.

    I did look at tapping off the actual amp who he is located in the lhs of the boot but there are way to many wires and I couldn't figure out what is what.
     
  21. Simonwhite2000

    Simonwhite2000 2017 S5 Coupe Daytona Grey

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    How are you finding this set up in comparison with the stock B&O set up?
     
  22. h1r4

    h1r4 Active Member

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    It's good! But the parcel shelf area needs to be sound deading. There's near enough 1000w rms being produced so obviously it'll rattle. However next car i get I'd want to get it professionally done. It's too much hassle.

    I've had a few problems with it over the past year or so. Mostly my fault. But atm I need to change the wiring from 4 gauge to 0 gauge as I bought a more powerful amp a month ago and the 4 gauge is causing me issues haha
     

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