Hi all ICE sifu and audio sifu, good evening.

Alright so after going through the great input, helpful comments and suggestions from u guys, i have finally changed my HU, and also added a sub and amp. but due to budget constrain, all stuff are basically cheap ones.

2 questions here:

1) currently the bass from the music are coming from all speakers and sub. How do i direct the bass to the sub and prevent any bass coming out from speakers?
Problem solved. Previously have no knowledge about HPF. The HPF settings on HU was off. Now it is set to ON.

2) the HU comes with built-in subwoofer On/Off control, but why it does not make any difference when i select it?
Problem solved. It was actually caused by loosen cable connecting amp to sub. My own mistake for didnt check properly.

setup:
-Pioneer MVH-155UI
-stock ori speakers of Proton Gen2 (front and rear)
-Caliber 1000w 2-channel
-Sierra 12" sub


seriously need help here, feels very miserable because totally noob with audio things.

thank you very much!






UPDATE: 22 / 11 / 2013

ok, so now the problem consider solved, but still, due to my own curiosity, i try to digest what did u all audio sifu out there told me last time, especially forumer 6UE5T, and i also have been google-ing for quite some time regarding the settings of HPF, LPF, Gain, Bass Boost etc etc. maybe due to all these, i still have some doubts in my mind now.

Here is the amp setting which i NEVER touch / modify / change since the day of installation:


GAIN:
as far as i know, gain cannot be too low or too high? too low means not enough power for the amp? and too high means can over-powering the sub and damage the sub? for now i leave it at the center mark, dare not touch.

BASS BOOST:
from my reading through google, majority of audiophiles and audio sifu never recommend to use bass boost, many will say better to leave it zero because bass boost will "pull" lots of energy from the amp, dangerous and will cause overheating, and also make the music sounds artificial. and yet some will argue that bass boost is fine to use as long dont use it too high level. so again, i leave this at center.

LPF:
ok, this is probably the most confusing for me. the LPF marking on the amp only stated 50Hz and 250Hz, so i assume that setting the knob to exactly center means 150Hz?
if it really means 150Hz, how about the LPF on HU? i set it to 80Hz, output level +3 and slope level -12. so which is the real LPF? 150Hz on amp or 80Hz on HU? or i will end up getting something in between 150 and 80?
and is my output level and slope level set correctly? i dont quite understand what is slope level even after fiddle with it.

HPF:
since this amp is for sub, and the Mode already set to LPF, so the HPF don't need to bother right? its alright to just leave it like that?

my current HU settings:
HPF set to 125Hz, slope level -12. i came to know it is better if LPF and HPF value are able to be as close as possible, but due to the super noob quality of stock Gen2 speakers, i have no choice but to set 125Hz, or else the front doors will start to have weird noise. so now assume that my LPF is 80, and HPF is 125, so anything between 80 to 125 is not fully covered? this condition is consider OK?
Bass Boost = 0 (because unnecessary?)
Loudness = Max (because Off, Low and Mid sounded weird)
EQ = Vocal (still prefer Vocal more than the rest)

i know i am being very fussy here, but if there is still any sifu or audio pro willing to answer my miserable questions, please feel free to do that. million thanks in advance!

This post has been edited by geforce88: Nov 22 2013, 11:28 PM

ur speaker should produce quite some amount of bass / mid bass. it's not appropriate to filter the front speaker to produce no bass while all bass at the sub...you wont get a good imaging with that.

ur amp input most probably connected to the other output from the hu or there's some setting inside that does not turn to the correct output...

thanks for the input.

the reason of preventing bass coming out from speakers is that the front speakers make the front door vibrate and producing very annoying sound, and rear speakers bass is making rear glass "dancing", typical Proton quality

if really the connection between amp and hu is wrong, means i have to take out everything and reconnect?

omg......

You should filter the bass to the speakers only for mid bass frequencies (like >80hz or even >60hz, depending on the size and low frequency capability of your speakers). Your sub also should not play mid-high bass frequencies because they're bigger hence may not be able to response fast enough to produce those mid-high bass frequencies accurately. The subs are only designed to produce the low end bass.

Hi,I m not so sure what type of bass u a looking for. a lot of boomy bass in your car ? or kind of correct dynamic punch from toms or reality type from kick drum .Should have tell the installor or listen to the demo,see wherether is the kind of bass your looking for then only let the guy install. Why i mentioned above cause i saw yu invest yr money for bass. the things yu mention above ;front door vibrating & produce annoying is because yu have not filter out subbass sound from yr door midranges.Try to get the installor who is proven know how or the demo car has the type of sound yu want;then seek for help.you may buy ten diffrent brands expensive or fair price yu still will not get the type of bass you want,trusts me cause i been through these before.

you know, when all the veterans/pros are PREACHING for soundproofing, there is a reason for that right?

to be honest, i myself also dont know what kind of bass i am looking for......

i listen to a lot of trance and new age music, how to describe the bass i really got no idea, sorry.

what i looking is just "filter" out the boom boom sound from my door speakers and rear speakers, i tried to set FLAT on the HU EQ, its goes flat, but then the sub also going flat as well

as for sound proof, i personally dont think its worth it to install on a 8 years old car?
and furthermore my setup is just very basic and cheap, not high end stuff or what

anyway, thanks to all Sifu once again for the great input, really appreciate all the comments

This post has been edited by geforce88: Oct 29 2013, 11:47 AM

my car is a 14 years old proton iswara and it has all the basic sound proofing. so it's up to your own mindset.
i'm also on basic setup.

Yes, trance music has a lot of really low and powerfull bass(around 35 hz),since you got passion on music ,for a economy side just do yr front doors soundproof,and get the good installor to look for rattle sheet panel in your car and just to apply soundproof on that particular rattle sheet matel. (use sweap tone to find out).this way you could save soundproof money.And dont simply turn your head unit's bass to max this is not the correct way to get
good sounding bass in yr car(most of the time you get loudsybass) let those pro do it for yu.
To answer your second question.let say you are going to use this car for another 3 years.Yu spend around a thousand bugs for good music which yu could enjoy everyday for 3 years to me this is not expendsive.Things you use everyday is very worthwhile. Things yu use once a month is considered expensive.that's all.

Ok not sure what 'boom boom' sound means to you but let me ask you these:

1. I checked that your HU does have high & low pass filters for speakers & sub. Normally those should be set as active for your setup. So can the filter frequencies be adjusted like I mentioned before? If can, then play around with those until you get the best sound for you. Usually in the mean time I'd suggest the EQ to be flat and loudness off first. If the HU does not have filter frequencies adjustments then you're already a bit limited with what you can set. So then question no.2 below.

2. Can your amp low pass frequency filter for the sub be adjusted for different frequencies? If your HU don't have such control then you need to play with this setting in the amp until you find the best sound to you while the low pass filter in your HU is bypass/deactivated and the high pass on the HU though should remain active. This way, you still rely on your HU to filter out excessive low bass from your speakers but rely on the sub amp to filter out excess mid/high bass from your subs. You can also play around with the gain on your sub amp until you find the loudest sound without distortion. If the amp has loudness or bass boost settings, then I suggest to turn it off first as better rely on the EQ/loudness settings in the HU later. If the amp has low pass filter but also does not have frequency adjustment, then you need to play around between using the HU low pass filter vs the amp low pass filter, which one is the better sounding for you.

3. Once the above done, then you can come back to try play around with the EQ & loudness to fine tune until you get what you like best.

These activities may take an hour or more, and I suggest to use your best music material for this. If you still don't understand how to do it, then ask a friend who could help or last resort is bring it to an installer for them to help fine tune your sound (you may need to pay them though).

Hope this helps a bit.

wow! i will definitely jot down this on a paper, very very detailed explanation

will try to fiddle with all those settings that u mentioned this weekend when i am completely free

ok, thanks once again for the suggestions + recommendations regarding the sound proof issue, i will take note on important points

That's the spirit, have fun then.

have read more and more articles and how to set AMP / HU through google, and the more i read, the more i curious and confuse

anyway, previous problems have solved, and i also updated my first post with few more questions

My comments in bold, hope it helps.

This post has been edited by 6UE5T: Nov 23 2013, 11:05 PM

thanks once again, for the very kind help of yours

now finally no more misery for me

i made screenshots of all useful tips here, and then print out hardcopy, keep in my car

This post has been edited by geforce88: Nov 27 2013, 03:19 PM

You're welcome, you can thank me properly by letting me test drive your Lamborghini if you really have one!

well, need to strike lottery for that

If u still not satisfy with result .u may drop by my shop.i teach u how to tune yr bass.ok?f.o.c.cause
Sound are hard to describe in writing .

bro, thank you very much for the offer, but i am from Penang