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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > ipod - Sound quality - base connector vs. headphone



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      08-15-2010, 07:55 AM   #1
fmhanc
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ipod - Sound quality - base connector vs. headphone

Just an FYI

I was very inhappy with my sound when playing my Ipod when connected to the headphone jack, even with settings on Ipod set to flat.

Very harsh in upper frequencies

I bought a Y connector which gets line level audio from bottom Ipod connector and also charges the Ipod unit. (less than $10 on ebay)

WHAT A DIFFERENCE!

Clean sound again. Highly recommended
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      08-15-2010, 08:46 AM   #2
BMW335iSilver
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I had the same thing happen to me, but it was the other way around. I had a iPod charger, then upgraded to the iPod touch. The charger no longer worked, so I thought I would just use the 3.5mm jack. What a joke! The sound quality was horrible.
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      08-15-2010, 10:14 AM   #3
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You got a link so I can see what type of cable you are talking about?

I got a good idea, but I use Iphone and a Sansa clip mp3 that is constantly in the car. It use the same charger as my GPS so its pretty easy to switch but it sounds like a cheap OEM system.
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      08-15-2010, 10:17 AM   #4
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yea, link?
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      08-15-2010, 10:18 AM   #5
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Quote:
Originally Posted by ABishop View Post
yea, link?
agreed! link please!
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      08-15-2010, 10:32 AM   #6
faz
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Quick search on ebay:

http://cgi.ebay.com/3-5mm-Audio-Line...DA_Accessories
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      08-15-2010, 10:34 AM   #7
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I would have expected base connector to sound better as it likely uses a raw digital connection and processes the sound internally, while the headphone jack takes an analog signal processed by the ipod, which has a crappy audio decoder.
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      08-15-2010, 10:46 AM   #8
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Was the volume cranked on the ipod? I find that the gain can't be to high and I have no issues.
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      08-15-2010, 10:53 AM   #9
2kaccordocoupe
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Ipods will always sound like crap regardless as you are feeding an analog signal.
USB Stick for the win, pure digital un-compressed audio.
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      08-15-2010, 10:59 AM   #10
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Quote:
Originally Posted by 2kaccordocoupe View Post
Ipods will always sound like crap regardless as you are feeding an analog signal.
USB Stick for the win, pure digital un-compressed audio.
Spoken like an engineer!

Ipod can handle uncompressed music too right?

But that base connector, isn't it digital? with the conversion done my BMW's DAC
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      08-15-2010, 11:26 AM   #11
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I have the ipod most connection that uses the base connection. Sound quality is great.
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      08-15-2010, 07:41 PM   #12
fmhanc
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This is the one I got.

http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT

The OEM one from BMW - very short cablles and about $90 - ridiculous.

The sound from headphone jack was improved by lowering volume to about 65% but still with distortion.
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      08-16-2010, 12:10 AM   #13
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The HP output is optimized for driving headphones.

The line out in the 30-pin is preamp level. Always sounds better.

iPods don't always sound like crap. However, I suspect the USB with a lossless file will sound even better. At that point, your playback system better be high resolution. No BMW Audio system is good enough to sweat it that much.

I just upgraded the car iPod from an 80G Video to a 160G Classic, and the SQ diff was most obvious on piano notes.
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      08-16-2010, 02:31 AM   #14
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aren't those wires only for people with the 6fl option?

i mean, there is no other option than the headphone jack input if that's all you have...?
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