Audio Config Probz...

Audio/video systems, electronics, GPS, seats, fabrics etc.

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newimprovednf
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Post by newimprovednf » 07 Aug 2007, 11:02 am

I have got a JBL 500W Basstube and rear speakers (40Wx2) connected to a 500W Kenwood 4 channel amp...
but its not giving enough bass compared to my friends 500W Bass tube connected to 350W Kenwood Amp...

i have taken output directly from the headunit...
but in my friends car the output is taken from the rear speaker to amp to woofer...

y is this happening...

is it because of a poor headunit... (i'm asking this because the headunit is not a branded one)
Image

is it because of poor amp setting
Image

is it because of wrong connection from head unit to amp...(btw...how do we normally connect a head unit to amplifier)

this is how my head unit is connected to amp
Image

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newimprovednf
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Post by newimprovednf » 07 Aug 2007, 11:05 am

the woofer is connected to Channel A ( 2 channels bridged)
and rear speakers are connected to Channel B (2 channels)

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3mro
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Post by 3mro » 07 Aug 2007, 8:19 pm

Which car does your friend have ??

coz i've got a 250W kenwood amp and a 1000W kenwood woofer in my car (Civic)
and my brother's got a 640W Kenwood Amp, 400W x 2 Kenwood Speakers and 1000W kenwood Woofer

and my car's got more bass than his car. the reason being that his car his larger in size compared to my car.

Or

You can try changing the tube into a box, that also makes a difference

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newimprovednf
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Post by newimprovednf » 07 Aug 2007, 10:29 pm

hes got a kia cerato sedan....with smaller trunk....

and this altimazz got damn huge bootspace...

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3mro
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Post by 3mro » 08 Aug 2007, 12:51 am

yea so that is the exact problem

i feel the best thing would be get the box that has 2 woofers in it
costs around Dhs 400
with 2 1000W woofers

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Tamu
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Post by Tamu » 08 Aug 2007, 2:28 am

3mro i think this is the prob...

bass probs can be from both amp and the HU....non-branded HU usually dont give the right audio quality..try saving up money and get a better HU which gives you better quality + more audio options to adjust everything to ur ears!!!...

as from what i have seen on ur daigram try to connect all ur speakers to the HU and leave the amp just for the woofer.....you can then try to bridge the connection so you can get more power from the amp for the woofer!!...the thing is closed trunks make it harder for you to feel the bass!!!...

if it was mee i would get rid of the tube..there not that great to tell u the truth..iv used them before broo..better go for 2poineer 1200watt premier edition woofers..and get the enclosed in a magna box...get a 1000watt kenwood mono block amp..and then feel the difference!!...ul go mad!!!

i hope it was good enough advice..the next person you should ask is neo...he can help u better!! :D

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newimprovednf
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Post by newimprovednf » 08 Aug 2007, 10:16 am

thanx Tamu....

on this weekend i'll try replacing the HU with a spare Sony Xplod MP3 player
if it does make a difference....wooohoooo :D

and even ill try disconnecting the rear speakers connected to amp...

is there any way to bridge 4 channels in to a one woofer (dont mind if its a stupid question...lolzz... :) )

cheers

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newimprovednf
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Post by newimprovednf » 09 Aug 2007, 10:40 am

wooohooo...
hey gyzzz....got it sorted....

the rear speaker wer connected to channel b and woofer was connected to channel a

it shud be the otherway

speakers to channel a and woofer to channel b....

now its givvin enough output.... :D

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Neo
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Post by Neo » 11 Sep 2007, 8:04 pm

:)
Well i saw this one now and I was about to tell u the same thing.

Always remember LPF stands for low power frequency.
And the Channel that supports LPF will some kinda subsonic filter, bass boost etc...

So you can always pump more bass than normal to get what you need.

And When u do have a proper sub and crappy speakers.
Set the other channel to HPF so its cuts out the bass to the speakers...

Trust me these speakers, their mounts and enclosures arent meant to handle the bass that would come thru the amp.

So instead of hearing the clear bass from the Sub, you would get crappy bass due to the mix of bass from the smaller speakers.

When i say crappy speakers, i meant sony, kenwood, clarion, etc. etc...
Expensive component speakers can handle decent bass without distortion but its always best to cap them off at 150hz, anything below that would require an enclosure to reproduce.


And your worst enemy is the panel vibrations. I hate them its giving me a headache in my Tiburon.

Also keep in mind the polarity of the speakers. The moment you reverse the polarity the bass goes dead....

Happy Pimping...



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