System tuning, Use Eq's or not?

[JettaGLI 10+ year member]

I was thinking the same thing about you. I see you have over 1k posts, you should know about forum edicate by now. Maybe you are just a sssssllllllloooooowwwww learner? //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif

 

[squeak9798 5,000+ posts]

Ok, so I have the component channels on the amp set to filter off (full range) and the rear channel set to LP filter at a frequency of 200. WHat a difference! THanks!

So, you are lowpassing your rear co-axials at 200hz?? If that's the case, why not just unplug them and not use them at all?

I do have a sub, 2 of them, and you mention that if this is the case, to possibly turn on the lowpass filter on my amp for my components that have the passive crossover. If the signal goes out of the amp, and through the passive crossovers of the components, shouldn't the passive crossovers filter out anything that passes through them? So turning on the low pass would be useless becasue of this... or am I missing something?

He didn't mean to lowpass the components in front, he meant to say you should highpass them....somewhere in the 50hz-100hz range. And no, this is not something you're passive crossover will do.....this is something you need to do either at the amp or at the HU.

And what the hell is eq-ex function for? Do you reccomend using it or not? The only purpose I can see it being used for is to adjust the bass and trebel.

Well, by looking at req's post I'd guess that that's just the name they gave their internal 3-band parametric EQ. Just play with it and see if you can improve the sound.

1 last question, and this is importand for me to know. Under each band eq on the head unit, there are frequency selections. Are these crossovers, or simply used to amplify the selected frequency.

Those are the center frequencies for each EQ band, where you can boost/cut the frequency as needed.

 

[JettaGLI 10+ year member]

So, you are lowpassing your rear co-axials at 200hz?? If that's the case, why not just unplug them and not use them at all?


He didn't mean to lowpass the components in front, he meant to say you should highpass them....somewhere in the 50hz-100hz range. And no, this is not something you're passive crossover will do.....this is something you need to do either at the amp or at the HU.

Well, by looking at req's post I'd guess that that's just the name they gave their internal 3-band parametric EQ. Just play with it and see if you can improve the sound.

Those are the center frequencies for each EQ band, where you can boost/cut the frequency as needed.

1) Why would I unplug them and not use them at all? What do you suggest the setting be for them?

2) He told me specifically to turn the amps channel that controls the component speakers on full range, to let the passive crossovers do their job. What are the passive crossovers there for if you still have to use other devices to set crossover points?

3)Thanks for answering my question about the frequency controlls under each eq band. That was driving me nuts. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I thought the whole point of having a component set with a passive crossover was that so you didn't have to use any other crossovers to enable the components to play everything the subs won't, but play nothing the subs will.

As far as the rears go, I would like them to match the fronts.

The entire goal is to get the mids and tweets playing everything the subs don't, and to volume match everything so it is balanced.

 

[squeak9798 5,000+ posts]

1) Why would I unplug them and not use them at all? What do you suggest the setting be for them?

LOL....I suggest not using them at all //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

Unplug them and see if you like the sound.

2) He told me specifically to turn the amps channel that controls the component speakers on full range, to let the passive crossovers do their job. What are the passive crossovers there for if you still have to use other devices to set crossover points?

Passive crossover is there to highpass the tweeter and lowpass the mid. You still need to use an external device to highpass the mid.

I thought the whole point of having a component set with a passive crossover was that so you didn't have to use any other crossovers to enable the components to play everything the subs won't, but play nothing the subs will.

Well...you thought wrong //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif The passive is only there to split the frequencies between the mid and tweeter. You need to use an external device (amp, HU, etc) to highpass the mid and remove extreme low frequency content.

As far as the rears go, I would like them to match the fronts.

My point before was that if you were lowpassing them at 200hz, then they were barely contributing to the overall sound to begin with. That and the fact that rears in general only degrade overall sound.

The entire goal is to get the mids and tweets playing everything the subs don't, and to volume match everything so it is balanced.

Then you need to use an external crossover on the components //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[squeak9798 5,000+ posts]

hey REQ, u mentioned something about not going over +/-3 DBs when EQing. do u mean do not raise or boost more than 3 dbs between each knob?? or do u mean overall the highest boost minus the lowest boost should equal no more than three? cuz right now in my car the eq kinda looks like it goes from +0 at 1 khz then it boosts +3 at 2khz and then around 8 khz its around +5.

He was talking each band.

However, EQ's should be used primarily to cut rather than boost. Try to keep the boosting to 1-2db in general, and cut as necessary.

 

[JettaGLI 10+ year member]

LOL....I suggest not using them at all //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
Unplug them and see if you like the sound.

Passive crossover is there to highpass the tweeter and lowpass the mid. You still need to use an external device to highpass the mid.

Well...you thought wrong //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif The passive is only there to split the frequencies between the mid and tweeter. You need to use an external device (amp, HU, etc) to highpass the mid and remove extreme low frequency content.

My point before was that if you were lowpassing them at 200hz, then they were barely contributing to the overall sound to begin with. That and the fact that rears in general only degrade overall sound.

Then you need to use an external crossover on the components //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

This is all so confusing. Req tells me one thing, and you tell me something on the complete opposite end of the world. Frustrating!

 

[RCwhat 10+ year member]

This is all so confusing. Req tells me one thing, and you tell me something on the complete opposite end of the world. Frustrating!

listen to squeak, i agree 110% with everything he said....also i think req just worded what he said wrong. you definitely don't want to lowpass the rears or components, or else your not gonna hear too much besides bass.

edit: if you need more help or have other questions you don't want to ask, feel free to pm me.

 

[squeak9798 5,000+ posts]

This is all so confusing. Req tells me one thing, and you tell me something on the complete opposite end of the world. Frustrating!

Just listen to me and me alone and you'll be fine.

:highhorse

 

[JettaGLI 10+ year member]

Just listen to me and me alone and you'll be fine.
:highhorse

OK, sounds good! Except for the part about getting rid of the rear speakers, I am keeping them! //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif Seriously though, thanks for your help.

Do you reccomend using the decks HPF and set it to 80, or keep it off and just use the amps crosssovers?

 

[noob with an RS 10+ year member]

EQ's should be used primarily to cut rather than boost. Try to keep the boosting to 1-2db in general, and cut as necessary.

but if i have the input gain down -6db, wont i be able to boost +6 db without getting a clipping signal??

 

[squeak9798 5,000+ posts]

Do you reccomend using the decks HPF and set it to 80, or keep it off and just use the amps crosssovers?

I'd just use the amp's crossovers. Should be a little more flexible

 

[req 5,000+ posts]

lol sorry about the lowpass comment, i just get the two names backward. lowpass, highpass, i just mix them up sometimes //content.invisioncic.com/y282845/emoticons/naughty.gif.94359f346c0f1259df8038d60b41863e.gif

i meant highpass (cut out the low frequency stuffs)

:doh:

otherwise, ive basically said all the same stuff squeak said, but for some reason you have been able to understand him this time, and not me //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

thats a first eh squeak mah boy?

 

[kuijo 10+ year member]

lol sorry about the lowpass comment, i just get the two names backward. lowpass, highpass, i just mix them up sometimes //content.invisioncic.com/y282845/emoticons/naughty.gif.94359f346c0f1259df8038d60b41863e.gif
i meant highpass (cut out the low frequency stuffs)

:doh:

otherwise, ive basically said all the same stuff squeak said, but for some reason you have been able to understand him this time, and not me //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

thats a first eh squeak mah boy?

uh huh.... that 62 band eq is just for show isn't it? //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

 

[JettaGLI 10+ year member]

Just wanted to thank all of you for your help. I am begining to understand all of this stuff again.

One last question.

The sub crossover on my deck (40-80-or-125) or the sub crossover on my amp...... which one will win......... or beat the other one out.