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 Noise on MXR EQ
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phostenix
Gold Member

USA
754 Posts

Posted - 10/03/2009 :  17:00:27  Show Profile  Reply with Quote
I have an MXR 6 band EQ (runs on 9v DC) like this:



I expect when I boost a frequency with an EQ (of any type), that I'll get a certain amount of added noise at that frequency. What surprises me about his EQ is that I also get more noise when I cut a frequency. I've never owned any of the Boss EQ's, so I'm curious if this is normal for these types of pedals. I have the older MXR 10 band EQ that runs on 120v ac power & it doesn't add any noticeable noise when you cut frequencies (less noise when boosting, too).



Download Attachment: MXR6-1.jpg
101.29�KB

Edited by - phostenix on 10/03/2009 21:31:20

DeFrag
Moderator

USA
3409 Posts

Posted - 10/03/2009 :  19:58:05  Show Profile  Visit DeFrag's Homepage  Click to see DeFrag's MSN Messenger address  Reply with Quote
That's strange indeed.
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Dirk
Platinum Member

Netherlands
1309 Posts

Posted - 10/03/2009 :  21:14:19  Show Profile  Visit Dirk's Homepage  Reply with Quote
you're not the only one, let me quote Paul Gilbert on his GE-7:

"I have always liked to get distortion by playing through a cranked-up tube amp. I have always liked to get a clean sound by turning my guitar�s volume knob down. To solve this problem, I bought a Boss EQ pedal and used it to turn down the �muddy� frequencies as well as turning down the overall gain. The pedal became a virtual �clean channel� and was really useful for cleaning up my sound while performing live.

But the Boss EQ was hissy (even though I wasn�t boosting anything), and the frequencies weren�t set as musically I would have liked."
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phostenix
Gold Member

USA
754 Posts

Posted - 10/03/2009 :  23:07:36  Show Profile  Reply with Quote
quote:
Originally posted by Dirk

But the Boss EQ was hissy (even though I wasn�t boosting anything), and the frequencies weren�t set as musically I would have liked."



He might be saying that it's hissy with all the sliders at 0, not necessarily when they are cutting frequencies.
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Dirk
Platinum Member

Netherlands
1309 Posts

Posted - 10/04/2009 :  10:21:47  Show Profile  Visit Dirk's Homepage  Reply with Quote
He was cutting most frequencies, look at this picture:

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phostenix
Gold Member

USA
754 Posts

Posted - 10/04/2009 :  15:09:22  Show Profile  Reply with Quote
He certainly was!

Anybody here have a GE-6 or GE-7 that can confirm that cutting frequencies adds noise?
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FRANZONI
Double Platinum Member

Ireland
3543 Posts

Posted - 10/04/2009 :  21:44:31  Show Profile  Visit FRANZONI's Homepage  Reply with Quote
I use my GE-7 for acoustic guitar or my mandolin usually in deep C or V curve and our singer is using it at the moment on his yamaha acoustic on the gigs...never noticed any noise or hiss with it... in fact his yamaha is a a low end model with a passive undersaddle pickup and tone and volume slider..very basic... the GE-7 makes it sound pretty decent and full sounding through the PA.. that said it's the only pedal he uses and loking at PG's setup there the GE-7 is running at the end of his signal chain so he could be picking up noise off the flanger or the phase 90 etc..i've always found boss pedals to be fairly quiet for hiss and noise to be honest compared to Dod or some other brands....

Edited by - FRANZONI on 10/04/2009 21:51:46
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visserman
Platinum Member

1072 Posts

Posted - 10/25/2009 :  17:37:56  Show Profile  Visit visserman's Homepage  Reply with Quote
quote:
Originally posted by phostenix

He certainly was!

Anybody here have a GE-6 or GE-7 that can confirm that cutting frequencies adds noise?



I will have a look for you since I both use the GE7,GE6 and the MXR EQ you mentioned earlier. Give me some time and I will report back how my pedals behave.

Cheers!!
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phostenix
Gold Member

USA
754 Posts

Posted - 10/26/2009 :  21:38:50  Show Profile  Reply with Quote
Thanks!
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visserman
Platinum Member

1072 Posts

Posted - 10/27/2009 :  12:46:04  Show Profile  Visit visserman's Homepage  Reply with Quote
Hello Phosten,

What you have observed about the noise on your MXR is quite common for most equalizers.

I tested a few of them.
My testingprocedure was a follows:

Switched on guitaramp at listeninglevels, with not exessive eq on the amp, next I ran different EQ pedals through them. Did not play, just listened to noiselevels!! First I kept EQ levels of pedal at neutral, then I cut all levels. Here are my findings:

GE7: Cut all levels and there is noise, put all sliders back to neutral and you do not notice much.

MXR: Cut all levels and there is noise, bring back sliders to neutral and there is nothing too much to notice.

GEB7: Cut all levels and you cannot hear much, bring sliders back to neutral and pedals acts without too much noise. I will comment on this pedal later.

Ibanez GE10: Similar as GE7.

Overal observations: When you cut on slider from the bassside, the noise is noticeable, when you cut ALL sliders noise is gone, this is at least true for the MXR [I have two of them and both act similarly, it is the same one as the one you put in your image].

GEB7 is a basspedal, so voiced differently, noise is also there but much less noticeable!!

The MXR is more powerful and therefore may produce more noise because this pedal boosts 18 db, whereas GE7 boosts 15 db.

Thinking about the GE6 [which I have not had time to test] this pedal is not noisier than the GE7 as what most people claim, it is simply a case of the pedal boosting 18 db instead of 15 db.

For normal playing any of this noisedicussion is irrelavant, as you will not notice this noise when you play your instrument, especially in a bandcontext. However it may be an insteresting observation purely from a technical point of view.

A few questions for you:

Are you the same person as the Phosten who was involved in unraveling the time code on the Bosspedals back at the end of 2005?

If so, were have you been for so long as I have not noticed any posts of you since then?

Cheers!!
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