Poor Bass on Android head unit

Search This thread

Virbolix

Member
May 14, 2022
7
0
Hi all 👋

First, I'm not English, I'm from France and I apologize for my poor English.

I recently purchased a Head unit for my Opel Antara car.

I think it's a Chinese one, I bought it on a french website.

Everything work but I have a problem with the sound, I will try to explain it.

There is no dsp in it and there is an eq but only the music app.

On the radio I have only treble, but on the music app, I hear some little bass. When I go the the eq and max the bass, I hear it but very bad quality.

I don't know how to make the bass work.

Before, an Android head unit was installed too but there was no bass to...

Wiring is good.

I post you a photo , maybe it can help you.

Thanks for your help.
 

Attachments

  • IMG_20220508_085142.jpg
    IMG_20220508_085142.jpg
    4.6 MB · Views: 33

Mr.TT_NZ

Member
Mar 13, 2022
41
13
68
Hamilton
Notice the OP said:

"Before, an Android head unit was installed too but there was no bass to.."

So it is not a fault of the current head unit, there will be something that has been overlooked, maybe power switching for a bass amplifier or wiring for low frequency speakers. We'd need information about the rest of the system in the car to make any useful suggestions.
 

Virbolix

Member
May 14, 2022
7
0
Notice the OP said:

"Before, an Android head unit was installed too but there was no bass to.."

So it is not a fault of the current head unit, there will be something that has been overlooked, maybe power switching for a bass amplifier or wiring for low frequency speakers. We'd need information about the rest of the system in the car to make any useful suggestions.
What informations do you need?

My car model is an Opel Antara Cosmo Pack from 2007.

On the doors I have 1 big speaker (bass come from it) and one little where I hear treble.
I have one center on the dashboard too.

I don't know if there is an amplifier in the car already.

I link you the wires behind the head unit.

If needed I can take other photos 😊

Thanks for your help.
 

Attachments

  • IMG_20220515_073521.jpg
    IMG_20220515_073521.jpg
    4.4 MB · Views: 10
  • IMG_20220515_073524.jpg
    IMG_20220515_073524.jpg
    4.8 MB · Views: 5
  • IMG_20220515_073529.jpg
    IMG_20220515_073529.jpg
    4.4 MB · Views: 6
  • IMG_20220515_073534.jpg
    IMG_20220515_073534.jpg
    5 MB · Views: 5
  • IMG_20220515_073545.jpg
    IMG_20220515_073545.jpg
    4 MB · Views: 5
  • IMG_20220515_073555.jpg
    IMG_20220515_073555.jpg
    4.4 MB · Views: 6
  • IMG_20220515_073550.jpg
    IMG_20220515_073550.jpg
    4.1 MB · Views: 6
  • IMG_20220515_073608.jpg
    IMG_20220515_073608.jpg
    3.8 MB · Views: 7
  • IMG_20220515_073616.jpg
    IMG_20220515_073616.jpg
    4 MB · Views: 6
  • IMG_20220515_073627.jpg
    IMG_20220515_073627.jpg
    4.6 MB · Views: 8
  • IMG_20220515_080358.jpg
    IMG_20220515_080358.jpg
    5.1 MB · Views: 9
  • IMG_20220515_080405.jpg
    IMG_20220515_080405.jpg
    4.1 MB · Views: 9
  • IMG_20220515_080413.jpg
    IMG_20220515_080413.jpg
    4.9 MB · Views: 9

Mr.TT_NZ

Member
Mar 13, 2022
41
13
68
Hamilton
I'm not sure I can help more, but from what you've told me I'd be almost certain there will be an amplifier somewhere in the car and it is not getting either power or signals or both. hopefully someone here may know the model of car and share some knowledge of the systems that will be installed and thus how to make the necessary connections. Have you approached the Opel dealers to see if they have any documentation that could help? There may also be some tie-up with the car's CANBUS system.
 

Kwen

Senior Member
Nov 10, 2006
291
38
Montreal
On my FYT unit with an DSP, enabling "LOUD" (loudness management?) Made a tremendous difference, do you have such option hidden somewhere?
 

rigattoni

Senior Member
Apr 27, 2010
1,515
486
Fuerth
If your rear-speaker are not working, and you have a center speaker in the dash, there is a OEM amplifier in there, or has been fired by the OEM radio and the only connection which is missing is the power connection to the OEM amplifier.

You need to talk with some guy of a car-hifi shop. That is nothing we can support, if you even don´t know what is built in there.

By the way... the OEM speakers are just crap. Don´t expect any good sound with their paper membranes. First try to find the amplifier, the connections to it and may be you need a different CAN-Box.
That needs all to be verified by someone who is able to.
 

Virbolix

Member
May 14, 2022
7
0
If your rear-speaker are not working, and you have a center speaker in the dash, there is a OEM amplifier in there, or has been fired by the OEM radio and the only connection which is missing is the power connection to the OEM amplifier.

You need to talk with some guy of a car-hifi shop. That is nothing we can support, if you even don´t know what is built in there.

By the way... the OEM speakers are just crap. Don´t expect any good sound with their paper membranes. First try to find the amplifier, the connections to it and may be you need a different CAN-Box.
That needs all to be verified by someone who is able to.


Oh ok,thank you, I will do this. 😊
 

Mr.TT_NZ

Member
Mar 13, 2022
41
13
68
Hamilton
I just did some Googling, and from that it does not sound like there's any amplifier in those cars so my first impression is probably incorrect, they mention 7 speakers but only 4*20 watt outputs on the factory unit so I think that will be front woofers *2, front tweeters *2 (probably just fed via capacitors from the woofers), rear full range speakers *2 and the centre front speaker will be just for vehicle warnings and sounds (like the direction flasher clicks, for example).
I'm tending now to incorrect connection of the speakers to the HU. OP did you just copy what was done with the other Android unit which you said also had the problem and was likely wrong, or did you go through and check each speaker's wiring individually and ensure correct connection? You should check each speaker except the tweeters by using a 1.5 volt cell and a pair of wires to identify correctly the wires from each one and which is the positive terminal of each so that you get correct phasing.
Who installed the previous Android unit? Were they familiar with audio installations?
If you were here I'd offer to look for you, but I think we're in very different countries.
 
  • Like
Reactions: rigattoni

Mr.TT_NZ

Member
Mar 13, 2022
41
13
68
Hamilton
Further thoughts, we may be making an incorrect assumption that the speakers are in good condition. They may have been damaged by someone or something previously.
Using the 1.5 volt cell as I mentioned, you should get a good rich sounding thump each time you make or break the connection. If you get only a thin scratchy sound or no sound at all then the speakers are damaged, or vaguely possible the wiring to them is damaged in some way, perhaps a short to ground.
Don't worry, you can't harm speakers with 1.5 volts, that is far less power than a 20 watt output gives them.
 
  • Like
Reactions: rigattoni

Top Liked Posts

  • There are no posts matching your filters.
  • 1
    I just did some Googling, and from that it does not sound like there's any amplifier in those cars so my first impression is probably incorrect, they mention 7 speakers but only 4*20 watt outputs on the factory unit so I think that will be front woofers *2, front tweeters *2 (probably just fed via capacitors from the woofers), rear full range speakers *2 and the centre front speaker will be just for vehicle warnings and sounds (like the direction flasher clicks, for example).
    I'm tending now to incorrect connection of the speakers to the HU. OP did you just copy what was done with the other Android unit which you said also had the problem and was likely wrong, or did you go through and check each speaker's wiring individually and ensure correct connection? You should check each speaker except the tweeters by using a 1.5 volt cell and a pair of wires to identify correctly the wires from each one and which is the positive terminal of each so that you get correct phasing.
    Who installed the previous Android unit? Were they familiar with audio installations?
    If you were here I'd offer to look for you, but I think we're in very different countries.
    1
    Further thoughts, we may be making an incorrect assumption that the speakers are in good condition. They may have been damaged by someone or something previously.
    Using the 1.5 volt cell as I mentioned, you should get a good rich sounding thump each time you make or break the connection. If you get only a thin scratchy sound or no sound at all then the speakers are damaged, or vaguely possible the wiring to them is damaged in some way, perhaps a short to ground.
    Don't worry, you can't harm speakers with 1.5 volts, that is far less power than a 20 watt output gives them.