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BMW E90 2005 No Bass rear speakers

8K views 8 replies 4 participants last post by  ylli 
#1 · (Edited)
Hi

I have a problem with my rear(back) speakers, there is no bass , only normal sound. Front speakars work perfectly , there is bass, also the speakrs under the seats look they work weel. The only problem is tha back spears have sound , but no bass ? Do you have any idea what might be ? should i change the speakers or the problem may be somewhere else ?
My car is BMW E90 320D 2005

Thank you for your time
Hope to hear from to soon

Br
Ylli
 
#2 ·
Hi

I have a problem with my rear(back) speakers, there is no bass , only normal sound. Front speakars work perfectly , there is bass, also the speakrs under the seats look they work weel. The only problem is tha back spears have sound , but no bass ? Do you have any idea what might be ? should i change the speakers or the problem may be somewhere else ?
My car is BMW E90 320D 2005

Thank you for your time
Hope to hear from to soon

Br
Ylli
How you know the problem is with speakers?
I can also be the radio unit, sound processor (if you have one) or wiring.. need some troubleshooting to identify where the problem is before replacing components.
 
#3 · (Edited)
They are tiny speakers incapable of producing bass .
BMW only puts 4 inch speakers in the doors and on the rear
deck . They are physically incapable of producing low frequency's to
any degree. If you have the base or hi fi system even the underseats
are bass challenged to due to the 6.5 inch underseats and no amp in the
base system (2010 to 2011.5 in US) and the weak amp in the Hi Fi system.

Did you just get the car and are now realizing how bad these two systems
are or did something change?

Also BMW makes some real cheap ass systems they sell in the Eastern Block
country's (former)that we don't see here such as the business systems . So you need
to identify which stereo system you have.
 
#4 · (Edited)
Thank you for reply.

I just bought this car i am a little surpised by the audio system. I had older cars and they had much better audio system, factory made. I guees i have to upgrade on it, i am looking to install an amplifier on the back.

My car has battery on the baggage (back), is it possiple to install the amplifeir there without having to lie cables from the radio ? Does the amplifier starts auto Electronics Car Vehicle Technology Vehicle audio
maticly (remotly) when the engine starts ?

I have attached a picture, maybe you my find out wich stereo system i have?

If you have any intallation guide or something that could help, i d appreciate showing me.

Hope to hear from you soon .
 
#5 ·
I guess you didn't listen to the radio when you check out or test drove the car.
Maybe you just need to adjust the Fader, Treble and Bass controls, or the Equalizer (if it has). It's explained in the owner's manual.
 
#8 · (Edited)
First you must positively identify which audio system you have .
I suspect you have the base system.

bimmerfest stereo
http://www.bimmerfest.com/forums/showthread.php?t=865559&highlight=ctuna
http://www.bimmerfest.com/forums/showthread.php?t=815454&highlight=audio
http://www.bimmerfest.com/forums/showthread.php?t=800000&highlight=audio
http://www.bimmerfest.com/forums/showthread.php?t=845838&highlight=audio

read the above and identify your system its not the head unit.

If you have the base system you will have to buy a harness to lay wire to the trunk.
I have to agree the system in the e46 was much better and had larger door speakers.
Your pictures only tell that you have a pro radio and a most bus connection.
 
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