Author Topic: Got No Bass!!  (Read 2090 times)

Offline OakeyDoak16v

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Got No Bass!!
« on: 18 January 2008, 23:15 »
Just fitted some replacement rear speakers (boston acoustics) to my car and cant get any bas out of them. Anyone any ideas? I've just replaced like for like really, can't work it out. :undecided:

Offline Uruk Hai

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Re: Got No Bass!!
« Reply #1 on: 19 January 2008, 07:59 »
Are they components, coaxial's, whats the frequency range and what's the power of the source running them ?

Offline Heyho

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Re: Got No Bass!!
« Reply #2 on: 19 January 2008, 08:53 »
I suspect that you've replaced the standard speakers (very sensitive) with less sensitive speakers, and you're running them from a headunit.

If it's a mk2, and you have 6x4s, you won't get staggering bass from them regardless.  You can try to increase the bass boost (which I'm sure you have tried), but this will just end up sounding muddy, and lead to clipping (distortion) from too little power.

Offline cняis

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Re: Got No Bass!!
« Reply #3 on: 19 January 2008, 13:01 »
or try swapping the +ve and -ve connections on one of the speakers, they could be running out of phase resulting in the bass frequencies cancelling themselves out! speaking from experience  :smiley:


I don't think a semi will give the same results

Offline OakeyDoak16v

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Re: Got No Bass!!
« Reply #4 on: 19 January 2008, 16:39 »
or try swapping the +ve and -ve connections on one of the speakers, they could be running out of phase resulting in the bass frequencies cancelling themselves out! speaking from experience  :smiley:
Thanks will give that a try. :smiley:

Offline OakeyDoak16v

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Re: Got No Bass!!
« Reply #5 on: 20 January 2008, 01:23 »
Sorted! Swapped over conections on one speaker and normal sound has been resumed. Cheers Guys :smiley:

Offline Dec

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Re: Got No Bass!!
« Reply #6 on: 20 January 2008, 14:48 »
So changing it on one makes a difference to both?

Offline Uruk Hai

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Re: Got No Bass!!
« Reply #7 on: 20 January 2008, 15:47 »
^^^ Yes it will, if they arent wired up the same it creates the effect of one speaker pushing and the other pulling instead of them both moving the same way at the same time.
« Last Edit: 20 January 2008, 15:48 by Uruk Hai »

Offline Heyho

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Re: Got No Bass!!
« Reply #8 on: 20 January 2008, 20:44 »
So changing it on one makes a difference to both?

Basically, one speaker is increasing cabin pressure, whilst at the same time the other is reducing it - hence they cancel eachother out.  Due to wavelength, it mainly affects the bass frequencies.

I should have thought of that.  Well done Crevice! :nerd:

Offline cняis

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Re: Got No Bass!!
« Reply #9 on: 30 January 2008, 23:30 »
So changing it on one makes a difference to both?

Basically, one speaker is increasing cabin pressure, whilst at the same time the other is reducing it - hence they cancel eachother out.  Due to wavelength, it mainly affects the bass frequencies.

I should have thought of that.  Well done Crevice! :nerd:

who's the man  :cool:


I don't think a semi will give the same results