I know, I feel like saying turn that pointy, turny, clicky thingy But honestly can anyone give me any help on adjusting a parmetric EQ??

I have the Eclipse 2101, and it is a 4 band parametrica EQ (which is kind of deceiving I think because the only parametric adjustment that I can tell is the low end/sub frequency, besides what the heck is this 'Q' thing anyways?? starts at 0.7 then goes up).

Anyone have any good links that they might be able to share?

 

Here is a very good link about 'Q' or constant-Q.
http://www.audiocontrol.com/techpapers/techpaper106.pdf

They also have some other good Technical White Papers. Here is the link to those.
http://www.audiocontrol.com/techpapr.htm

I thinks these links will help answer most of your questions. Good reading!!

Matthew

 

OK I feel like I am talking to myself here, but I found out a little more info (apparently you have to be pretty close, if not completely an 'audio' scientist to understand completely). Apparently the 'Q' is an adjust for all the bands (so it is a Parametric EQ on all 4 bands? but just one adjustment for Q) and it basically controls the frequency slope, either a sharp slope, or a gradual one.

OK enough of me talking to myself here, anyone else have any suggestions, or feel like teaching a little (I fear this is going to be more than 'basic' ) Audio 101?

 

If you don't want to read all that, a high Q will give you a notch filter that is a very tight bandwidth. A low Q will give you a wide bandwidth that will affect more frequencies.

 

Usually each band of the eq will have its own Q. I don't think I have ever seen a Q that effects more than one band. It most likely will just affect one of them and the others have a fixed Q that you cannot change.

 

So I would assume that the 'Q' for the Eclipe EQ I have is an adjustment for the low end frequency only, and it will make the bass being put out by my box either 'tighter' or 'smoother'?

So is it more common place to see Parmetric EQ's on the low end 'sub' frequencies rather than the high end freq?

 

I would bet that the Q is for one of the middle bands. If you have the manual I am sure that would tell you. Also the Q will not make things sound tighter or smoother. what it does is when you choose a freq and bring it down or up the Q adjusts how wide of a range of freq's are affected. So if you have a high Q you will only be affecting a very small amount of freq's, but if you have a low Q you will be affecting a lot of freq's. I hope this helps.

It is most common to see parametric eq's that have the ability to switch the high and low bands to a high pass or low pass eq. Most of the time there will only be a Q on the middle and high freq's. There are also british eq's that have 4 bands that all cover from 20hz - 20khz. It just depends of what type of eq it is.

 

Hey JSuppi, I've got the same EQ but I haven't installed it yet. How do you like it?

 

It makes a 'static' crackling noise when I turn up the gain on the EQ volume, but now that I have installed the ground loop isolator ( Thanks Silver ) it is much, much, much better....

Overall the EQ is great, the only down side of course is not knowing how to adjust the 'parametric' Q

 

Did it add more volume or clarity?
I know that it is no substitute for adding speakers and an amp, but I am hoping it will give me a little satisfaction for now.
Where do you have yours installed at?

 

He got it installed by some ghetto shop/installer who lost 11 original screws from the car (replaced 4 and left the other 7 out).
The EQ was bolted to the stock HU with 2 crews and tape(masking tape and double sided tape) The so-called installer also built a faceplate for the EQ (in Post-It note holder slot - nice cutting on the plate). The plate was left floating without anything to secure it :thumbsdn:

I fitted his EQ in the Post-It note holder frame last weekend and added the ground isolator .

Johnny,
Only recomment the installer to those you hate .

 

bl^5,
Not sure exactly what you are planning on doing with it, but the main purpose I bought it was to control the gain on the sub that I had bought, which then led to upgrading the components up front. Honestly if you are planning on just installing the EQ without any other stuff, I would currently wait until you get at least one amp and a subwoofer, otherwise I don't really see it doing anything. If you have any questions let me know, and i'll provide you what information that I can straight from the hip If you can make it down for the next meet, than hopefully I can explain a little better with a little example to help push across the facts

 

I already have an amp and sub. The main reason in adding an EQ (Eclipse 21010) is that I have the DVD to Navi kit. The EQ allows for an secondary sorce (A/B) switch. I currently have the sony switch to get audio straight to factory amp/speakers. I will replace the sony switch with the EQ. This is really necessary because my portable DVD does not have any EQ settings and the bass from the movies can get overwellming sometimes. I can use the DVD player as an MP3 player as well so the EQ will really come in use then. I see the EQ has Level knobs on it for both inputs so I am hoping that it will increase the output level (just a tad would be fine).

 

Oops I didn't understand that you have the Navi DVD conversion :o, but what you are saying would work out great (No matter what Silver says about his EQ being better than my EQ :p)

 

the Q is the width of a frequency. the wider the Q of the frequency the more it influences the frequencies closest to it. if u had a wide Q @ 70 Hz then it will affect the 80 and 60 Hz frequencies.

 

Higher the Q, smaller the bandwidth. Lower the Q, it will affect more bandwidth.

 

thanx for rephasin Daddy...LoL

 

I just didn't want anyone to get confused.