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Withnail, I am seeing the same behaviour as you, subwoofer can barely be heard even when in the boot. (I have B&O without Navi). The front speakers are doing all the work and to compensate I normally fade it 2 or 3 clicks to the rear. Overall the sound is OK, but not nearly as good as I was expecting.
Yeah, I've played around with the settings as much as I can stand, but can't quite get the sub to handle the bass better..

One of the reasons I haven't been back to the dealer before now, was hearing on Audiworld, people who have had no physical connection to the sub at all.. As mine is actually connected, I assumed that the bass from the sub was just a bit thin.
As Drastik just commented about having a rattling parcel shelf due to the bass, we're definitely missing out on something!

Yeah, I reckon a trip to the dealer is coming up.
 

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Listened to my S5 and another S5, both with B&O and using the same CD: wow, what a difference, in the other car the sound was really good (similar as the Bose setup in older Audis)! This was clear proof that the subwoofer and/or amplifier is the problem (in many cars?) and my dealer ordered replacement parts. Let's wait and see, uh, hear!
 

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Listened to my S5 and another S5, both with B&O and using the same CD: wow, what a difference, in the other car the sound was really good (similar as the Bose setup in older Audis)! This was clear proof that the subwoofer and/or amplifier is the problem (in many cars?) and my dealer ordered replacement parts. Let's wait and see, uh, hear!
Yes, please keep us updated on this issue :)
 

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Listened to my S5 and another S5, both with B&O and using the same CD: wow, what a difference, in the other car the sound was really good (similar as the Bose setup in older Audis)! This was clear proof that the subwoofer and/or amplifier is the problem (in many cars?) and my dealer ordered replacement parts. Let's wait and see, uh, hear!
This might be a stupid question, but I assume you checked to ensure you had the DSP sound settings identical in both cars (e.g., DSP 'Sound Set' = All)?
 

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This might be a stupid question, but I assume you checked to ensure you had the DSP sound settings identical in both cars (e.g., DSP 'Sound Set' = All)?
It is not a stupid question :rolleyes: and of course, I had both cars on the same DSP, volume/balance/fader/bass/treble/etc settings :cool:

There was really a huge difference in sound (also the dealer listened to it, and said: wow, after 2 seconds). In the good car, the bass was very solid, deep and not disturbing in any way. It was the difference between a high-end setup (in the new car) and a low-entry solution (in my car :mad:).

Keep you posted.
 

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So, the other day I borrowed an A5 with the B&O system from my dealer to try it out. First off the system is really good and second the system really sucks :mad:

It's good because the sound quailty is crisp, smooth and of high quality at low/normal volume levels. But! The bass is not as satisfying. It flutters and there is not enough "punch" in it.


I took the car to one of swedens best car-audio-mod dealers and we took a look at it. He put in one of his test-CDs and gave the system a thorough test.

He was dissapointed that it was a "flat" subwoofer and it definately needed replacement. He also said something that I noticed but couldn't figure out what it was... That the software was "bad" (depending on how you see it).

He told me that the software was programmed so that the system manipulated the output volume so that the sound quality never sounds bad. For instance, when I played a song with bass and had the system at max volume (which btw bugs me that you can actually reach max volume pretty fast!) and when the harder bass kicks in the system automatically adjusts/lowers the volume. This makes the bass flutter and that's probably why the sound quality/bass is "bad", in combination with the flat subwoofer to save trunk space.

So the software is "good" for a certain target group, the one's who wants a "beautiful" sound and maybe mostly listenes to classic music. But for others, like me, who listens to Soul, RnB, House and Techno the programming impairs the overall quality of the system.

So I'm mostly (read deeply) disappointed at the software rather than the subwoofer. But of course the subwoofer is too poor in relation to the rest of the system and to what you pay for the system.


But I will buy the system anyway and replace the subwoofer and the "slutsteg" as it's called in swedish... don't know the english name for it but it's the "last" part that increases the current and adjusts the impedance... and from what I've understood that's where the software is.
 

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Great info! Thanks for sharing what you found out from that car audio dealer.
 

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It's good because the sound quailty is crisp, smooth and of high quality at low/normal volume levels. But! The bass is not as satisfying. It flutters and there is not enough "punch" in it.
This was my experience too in my car (i was really shocked by the bad quality), until............I listened to the same CDs in another (newer!) S5 with B&O using the same sound settings and did hear that it is not so bad at all (many more bass, enough punch, etc).

So maybe your dealers car was one of many cars that suffers from a bad subwoofer/amplifier. Mine is being replaced soon (both parts are on back-order, because of the big demand!) and I will tell you the results. Of course it will still not be a full-fledged Alpine system (or the like) but if possible, check another (newer?) A5/S5 with B&O too if you can.
 

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This was my experience too in my car (i was really shocked by the bad quality), until............I listened to the same CDs in another (newer!) S5 with B&O using the same sound settings and did hear that it is not so bad at all (many more bass, enough punch, etc).

So maybe your dealers car was one of many cars that suffers from a bad subwoofer/amplifier. Mine is being replaced soon (both parts are on back-order, because of the big demand!) and I will tell you the results. Of course it will still not be a full-fledged Alpine system (or the like) but if possible, check another (newer?) A5/S5 with B&O too if you can.
It could have been one of those who suffer from a badsubwoofer... But just to be clear, in my opinion the subwoofer/amplifier isn't "bad" or defect, I just think it's weak and that the software is bad.

But I will definately try to get my hands on a newer A5/S5 with B&O. Just for note, the car I tried out the other day was an A5 with B&O, without Sat Nav.

I'm really eager to find out if your situation changes with the replacement parts :D
 

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I thought my "B&O without MMI" was OK at first but I've become less and less impressed. The crunch for me was shifting the fader completely to the rear and then cranking things up ... I was stunned to find that the bass performed better when set to 75% than at 100% which I think is what denakno is referring to in his post about the software and bass fluctuations.

I'd previously checked the sub in the parcel shelf to make sure it was shifting air and could feel some mile movement so thought all was OK. HOWEVER, today we had my youngest son's 5th birthday and we had some music on for various games. This was played through a Sony micro system which I think has a PMPO of about 100W. At one point my son cranked the volume up to about 65% and by sheer coincidence I had my hand behind the speaker. When he did this I was really shocked by the amount of air that was being literally pumped (thrust?) out of the little Sony speakers compared to what I'd felt from the large sub in my A5.

Now I'm convinced something's wrong with my B&O sub so it'll be going in to the dealers for some investigation.
 

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I was stunned to find that the bass performed better when set to 75% than at 100% which I think is what denakno is referring to in his post about the software and bass fluctuations.
Yea that's what I meant.

And this is what I think:
I think the subwoofer is too weak, I'm not convinced that there's something wrong with it. So that's why the puff from the rear is small. But believe me I really hope you guys are right. Cause if so, then the fix is pretty simply, just go to the dealer :)
But if not the only thing to do is to replace the subwoofer/amplifier (in case if you think it's worth it).

But keep us updated on your progress TLU.
 

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For the first I must say that I am a little disappointed in my S5 B&O system also, I have not checked if the sub is even working. I did go and buy a 10" JL Audio sub that is going in the car (well, after I make sure the sub that is there is working of course)

Denakno where in Sweden do you live, I'm from Ostergotland but have lived in the US for almost 15 years

Tonny
 

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Hi Tonny
Nice to see some other Swedes here, I myself live in Gothenburg :)

Tonny, check out this thread
http://www.a5oc.com/forums/showthre...nt-4009/index.html?t=4009&highlight=subwoofer

drastik3 has replaced his sub as well, but he only replaced the sub and not the amplifier. So it still has the original software, where I think the root of the problem lays. I've PM:ed him and asked how it behaves with the new sub, I'll let you know.


Still waiting on what TuffLittleUnit says with his new replacement parts :)
 

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Don't hold your breath. Mine's a company car and it's due for a service in about 1,000 miles according to the DIS (surely this is just an oil change after only 8,000 miles?). Can't be bothered leaving my car with the repair shop twice in a couple of weeks.
 

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It helps!

So, my car is back from the dealer and has new B&O sub/amp and it is really a great difference! Now it sounds like a good setup, with good balance, crisping high and solid low. Of course I tried it with the same CDs as before, and now finally I can enjoy the music.

Be not overenthusiastic: it is still not as good as the previous Bose system, and certainly not as good as the Alpine factory system in the AM.
 

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Mine's in at the stealer's today for the 9,000 mile oil change. I asked the girl on the service desk if they could take a look at the sub for me. Funny thing is, I was expecting her to ask for more detail but she seemed to know exactly what I was talking about AS IF SHE'D HEARD THE SAME THING BEFORE. She even went so far as to say it might take a day to get a replacement in and that was before I'd even handed over the key for someone to start taking a look.

I'm picking the car up tomorrow so will let you know how I get on.
 
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