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Need your help and opinion with SQ setup

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Old 11-15-2007, 02:55 PM
  #21  
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If your hearing distortion, Your gain is probably set too high. Don't despair it took me over a month to adjust my new setup.
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Old 11-15-2007, 10:20 PM
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Opinion for SQ setup

Check out Elite forum. Vibez has a couple of threads running there with the same questions. I think he's putting everyone on.
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Old 11-16-2007, 08:21 AM
  #23  
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Burns,

I am trying to get as much info from different people as possible, as there is no hard and fast way to 'get it right the first time'. Why would I be putting anyone on? I do not think posting on multiple forums is against the rules, is it? Everyone has their own perspective on things and I am trying to get the most information I can, maybe something will work for me and something else will not. I wont find out unless I try and learn 'everything' possible.

I am utterly disappointed in your tone and behaviour...I fail to understand how I can possibly make anyone agitated by asking 'more' people for help?? Is that a problem with you? Dont take it personal but I feel you just dont want people to be helped for whatever reason, and thats a shame..
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Old 11-16-2007, 04:31 PM
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SQ setup Vibez

No offense was intended Vibez. I, and some other members, much more knowledgable than myself, responded to some of your questions on another forum with good basic advice. When the moderator made it known that you had another thread going on in another format, I checked it out, and found the same basic questions, plus a bunch more totally unrelated. It's like if you asked someone to help you build a house, and you got good advice on how to start by laying the foundation, and instead of building on that, you put out questions about installing a bathroom sink, or how to install a doorbell before the house is even built. The people on these forums are trying to guide you in a logical sequence that will get you where you want to go, in a step by step fashion. I think it would be prudent to consider their replies before jumping to the next question. Again, no offense was intended, we all have to learn.
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Old 11-18-2007, 03:00 AM
  #25  
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First, vibez you are misunderstanding different concepts:

Speakers wattage
Amplifier setup

Your car is kinda small, well, is minuscule, the front speaker locations are terrible, is easier to get water from a rock than SQ points from an atos, lets say you have a tremendous desire to go the SQ way...

Please tell us how you installed your front speakers, how you isolated the front wave from the rear one, because the dash locations are not easy to accommodate a speaker the right way.

You not have to worry about you speaker watts, that's the thermal limit for a speaker, not what the speaker needs to sound great, if you apply 30watts to a 50 watts rated speaker is no better if the speaker is not well installed.

Your cabin size will live very well with that amplifier, the front stage you already have, remove your big rear speakers, get a 6 inch sub, an inexpensive one, like the JL audio W0 use 2 channels in bridged mode to the sub woofer.

Cos of the small size you just don,t need rear fill.

about setting the amp, make it easy for you... Follow the users manual, try to use the amplifier on board xover.

Of course, as soon as you get more educated ears and experience tunning your system, you can go with the Pro-mode on your HU. Your HU can be 5v output, so, what? you can get 5 volts when you put a test tone on the HU with the settings they use to test the HU in the lab, but i think you listen music, not tones.

Start setting the gains low, is better, less noise...

if you are feeling like going PRO on this matter read here https://resources.myeporia.com/company_38/techpaper103.pdf

do not forget to tell us how is it going...

PS. sorry for my English, I'm Mexican

Cheers

Gonps
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Old 11-18-2007, 04:30 AM
  #26  
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Originally Posted by Mr Burns
No offense was intended Vibez. I, and some other members, much more knowledgable than myself, responded to some of your questions on another forum with good basic advice. When the moderator made it known that you had another thread going on in another format, I checked it out, and found the same basic questions, plus a bunch more totally unrelated. It's like if you asked someone to help you build a house, and you got good advice on how to start by laying the foundation, and instead of building on that, you put out questions about installing a bathroom sink, or how to install a doorbell before the house is even built. The people on these forums are trying to guide you in a logical sequence that will get you where you want to go, in a step by step fashion. I think it would be prudent to consider their replies before jumping to the next question. Again, no offense was intended, we all have to learn.
Burns,
Okay, I understand the rationale behind what you are saying. However, you need to realize that I am very new to forums for car audio, and was referred to both elite and canadiancaraudio by a colleague of mine. Not knowing where to expect the answers to come from, and maybe getting different responses from both, I posted similar questions in both the forums. And trust me, both forums have given me some great advice and insight into car SQ, some of which is not similar to each other. I am not putting anyone on, am not like that, and I respect the advice given by each member. However, the kind of message you posted in the forums against me was uncalled for, and I did not like it. The repitition in two forums was unintentional from my side, but your assumption was outright insulting to me. I will be careful about posting similar questions in the future, but what you did has still $!#%ed me tremendously.
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Old 11-18-2007, 04:56 AM
  #27  
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Originally Posted by gonps
First, vibez you are misunderstanding different concepts:

Speakers wattage
Amplifier setup

Your car is kinda small, well, is minuscule, the front speaker locations are terrible, is easier to get water from a rock than SQ points from an atos, lets say you have a tremendous desire to go the SQ way...

Please tell us how you installed your front speakers, how you isolated the front wave from the rear one, because the dash locations are not easy to accommodate a speaker the right way.

You not have to worry about you speaker watts, that's the thermal limit for a speaker, not what the speaker needs to sound great, if you apply 30watts to a 50 watts rated speaker is no better if the speaker is not well installed.

Your cabin size will live very well with that amplifier, the front stage you already have, remove your big rear speakers, get a 6 inch sub, an inexpensive one, like the JL audio W0 use 2 channels in bridged mode to the sub woofer.

Cos of the small size you just don,t need rear fill.

about setting the amp, make it easy for you... Follow the users manual, try to use the amplifier on board xover.

Of course, as soon as you get more educated ears and experience tunning your system, you can go with the Pro-mode on your HU. Your HU can be 5v output, so, what? you can get 5 volts when you put a test tone on the HU with the settings they use to test the HU in the lab, but i think you listen music, not tones.

Start setting the gains low, is better, less noise...

if you are feeling like going PRO on this matter read here https://resources.myeporia.com/company_38/techpaper103.pdf

do not forget to tell us how is it going...

PS. sorry for my English, I'm Mexican

Cheers

Gonps
Gonps,

Thanks for the reply I understand why you are suggesting me what you did, but let me explain a bit:
The front MBQUART (RVF210) 4" mids are installed in the dash stock mounting position which has standard 4" speaker mounting place. The place is a little lower to the stearing and in the front on the right and left (not in the sides inside the doors). The mids are installed in those stock locations. The tweeters are mounted on the A pillars, at the bottom.
I have used the amplifier crossover to isolate the front frequencies from the rears. I have used a LPF for the rears set at 220 Hz. So the rear Fosgate 6x9 speakers are basically acting as a sub! The problem for me is that I am not too sure that the 4" mids up front are good enough to give me the mid-bass sounds I need, that is why I still have the rears for those frequencies. By losing the rear speakers I do not want to miss out on the frequencies between about 400Hz and 80Hz (the front 4" mids are not good at high volumes for frequencies less than maybe 140Hz, distorting), thats why I am reluctant in getting rid of them.
The other problem is, I am looking for a 6 or 8 inch subwoofer which is NOT available in Pakistan (people generally dont know about SQ here and so only go for BIG subs, even in small cars). I also need an amp to match that sub (or maybe can use my amp bridged in two channels if I can get rid of my rears). That is also what I am trying to find in these forums to buy from someone, preferably second hand which I can afford easily.

With this setup, do you still believe i should get rid of my rears and install a sub? what will I do for the mid-basses?

Thanks
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Old 11-18-2007, 02:12 PM
  #28  
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Still a misunderstanding, u r no getting things right, you are into theory, thats not bad, but, you have to understand thing right...

I'm talking about the front soundwave of the speaker itself, every speaker produces a frontal wave and a rear one that is out of phase 180 degrees, if your speakes is not properly installed and isolated, you are missing, lets say the 50% of your speaker perfomance, please, check on that issue, can be severe cancellation in those cars, next, do not let the speakers in free air arragement, try to seal the speake with some kind of enclousure, you will amaze yourself how this can improve the SQ of any speaker...

Second, try to test the system with the tw's in different locations and directions, can be a tremendous phase shift separating too much your Tw's from the mids, your cabin is too tiny, so i think you should have to attenuate your tw's with the passive xovers, the path lengths between your ears and the tw's are terribly wrong in that small space.

Third, forget about the numbers game, watts, amperes, volts, etc. stick with what you have, get a SUB, I mean it, otherwise theres no way you can do a thing.

Fourth, stick on the passive side of your mb quarts, set the HU to 0, and the HPF of u r amp to OFF if you have the chance, get some computer speakers, creative or logitech will do fine.
Get a 2.1 system, make long cables, plug with an adaptor to your RCA on u r HU, that will give you the chance to test, locations, and since most of the computer systems comes with a xover fixed point, theres no mistakes on settings.

Fifth, unplug the rear spekers, test what i'm telling to you, your issues with distortion are normal stuff, as soon as you get a 6 or 8 sub that will improve your midbass and and put the missing low end, midbass in a car like yours is more a matter of transition between xover setting than a speaker size or quantity...

Enjoy

Gonps

Last edited by gonps; 11-18-2007 at 02:17 PM.
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Old 12-01-2007, 01:26 PM
  #29  
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Originally Posted by gonps
Still a misunderstanding, u r no getting things right, you are into theory, thats not bad, but, you have to understand thing right...

I'm talking about the front soundwave of the speaker itself, every speaker produces a frontal wave and a rear one that is out of phase 180 degrees, if your speakes is not properly installed and isolated, you are missing, lets say the 50% of your speaker perfomance, please, check on that issue, can be severe cancellation in those cars, next, do not let the speakers in free air arragement, try to seal the speake with some kind of enclousure, you will amaze yourself how this can improve the SQ of any speaker...

Second, try to test the system with the tw's in different locations and directions, can be a tremendous phase shift separating too much your Tw's from the mids, your cabin is too tiny, so i think you should have to attenuate your tw's with the passive xovers, the path lengths between your ears and the tw's are terribly wrong in that small space.

Third, forget about the numbers game, watts, amperes, volts, etc. stick with what you have, get a SUB, I mean it, otherwise theres no way you can do a thing.

Fourth, stick on the passive side of your mb quarts, set the HU to 0, and the HPF of u r amp to OFF if you have the chance, get some computer speakers, creative or logitech will do fine.
Get a 2.1 system, make long cables, plug with an adaptor to your RCA on u r HU, that will give you the chance to test, locations, and since most of the computer systems comes with a xover fixed point, theres no mistakes on settings.

Fifth, unplug the rear spekers, test what i'm telling to you, your issues with distortion are normal stuff, as soon as you get a 6 or 8 sub that will improve your midbass and and put the missing low end, midbass in a car like yours is more a matter of transition between xover setting than a speaker size or quantity...

Enjoy

Gonps
Everyone,

I am FINALLY getting a sub and an amp!! Please comment on the choice I am making:
Rockford Fosgate Punch RFP4410 10" sub
Soundstream PCA 2.360 amp

This is what I have been able to find for now, but I need to know if there is any issue with this setup.

One more thing, what is the maximum frequency that I should set for the LPF for this unit? I am trying to get rid of the 6x9 rear fills (Rockford Fosgate Power series), but I need to know if my MB QUART 4" components (RVF 210) and only this subwoofer will be enough to fill all the required frequencies.

Please reply soon, I need to decide on both the issues

Thanks y'all
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Old 12-01-2007, 05:26 PM
  #30  
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The 4's won't do too well in the midbass area if you wanna turn up the volume, I'd try and cross them over around 250-200Hz and use the 6x9's from 250-200Hz down to around 80Hz.......and play the sub on down from there.
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