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Help with Pultec EQ Curves
Old 26th January 2009
  #1
Gear Maniac
 
PinnacleProdUK's Avatar
 
🎧 10 years
Help with Pultec EQ Curves

Hey, I'm wondering if any of you slutz can help me with this:

I regularly use the bluetubes plugs as i find they sound really good especially the PEQ2B Vintage EQ which is an emulation of a Pulteq EQP1A. I find that nothing quite sounds as good on vocals as this does, however i would like recreate the curves using an EQ such as Sonnox EQ or similar at another recording studio who unfortunately doesn't have the bluetubes plugs.

I have included a screen dump of my project where i had this inserted on the lead vocal.
this is a link as it wouldn't let me insert a image (if you click on the smaller picture after the link it will enlarge it) thanks
zSHARE - untitled.JPG

Ii would be much appreciated if s
omeone could insert a picture or recreate the curves shown here on a parametric EQ such as Sonnox or Cambridge EQ to illustrate a starting point as i understand the boost as well as the cut creates a dip before the boost which i cant recreate.

Hope this makes sense.

The Low Boost is 3.48
The Low Atten is 1.83

The Low Freq is 126.34Hz

The Bandwidth is 3.28

The High Boost is 5.79
The High Atten is 0.87

The High Freq is 12.66KHz
The High Atten Freq is 10KHz







Old 26th January 2009
  #2
Lives for gear
 
1 Review written
🎧 10 years
You almost need two separate EQs to replicate what the Pultec low band does.

The boost and the atten do not affect the exact same frequency and the amount of signal affected (the boost has more gain than the trough has cut) isn't linear between the 2.

There is also some extra mojo going on that seems to be frequency dependant that I'm not sure you can replicate with ultra-clean EQ like Cambridge.
Old 27th January 2009 | Show parent
  #3
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bgrotto's Avatar
Just to be clear: you're not recreating what a Pultec does. The only thing that does that is a Pultec. There's a lot more to it than an EQ curve.

Not trying to be a dick, just sayin', as an avid Pultec-user: those Blue Tubes plugs aren't anywhere NEAR a Pultec. Not even the same neighborhood. The hardware copies don't even come close.
Old 27th January 2009 | Show parent
  #4
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7thangelz's Avatar
 
🎧 10 years
christian budde's vst plug-in analyzer may help to show you what your plug-in may be doing Christian’s Blog » Measurement

Old 27th January 2009 | Show parent
  #5
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bgrotto's Avatar
Quote:
Originally Posted by 7thangelz ➡️
christian budde's vst plug-in analyzer may help to show you what your plug-in may be doing
...but that's not what a Pultec is doing!! Sorry to harp on this, but I feel it's an important point. There's WAAAAY more to classic EQs than their curves. Otherwise, modeling plugins would be 100% spot-on and we could ditch all that clumsy hardware.
Old 27th January 2009 | Show parent
  #6
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7thangelz's Avatar
 
🎧 10 years
you're mistaking my suggestion, this is for dude to possibly analyze what his plug-in is doing, nothing else
Old 27th January 2009 | Show parent
  #7
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phillysoulman's Avatar
 
🎧 10 years
A real Pultec has "mojo" from just running your program through it without using the eq
Old 27th January 2009 | Show parent
  #8
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PinnacleProdUK's Avatar
 
🎧 10 years
Thanks for the reply's,

bgrotto- i fully understand what you are saying.... i know that my little old bluetubes plus are not recreating the exact pultec EQ and the difference is vast considering my plugs cost a couple of hundred pounds and a pultec EQ cost in the region of a few thousand pounds... I also understand that vintage EQ untis have their own unique character and sound which is hard to "recreate" using software and its not the curves alone which define the sound!

Belive me if i had the money i would get a pultec, and a fairchild, and a SSL console. but for now i have to make do with my blutubes which according to nomad factory has pul-"tech" (lol) EQ "style"!

What i am trying to understand is exactly what my plug in is doing to my signal so i can come as close to it using an alternitive EQ plugin..

Thanks for the reply anyway.

7thangelz- thanks alot for that, i will certainly check that out, it looks like it can some way to help me figure out what im looking for. cheers

thanks again!
Old 27th January 2009 | Show parent
  #9
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bgrotto's Avatar
Quote:
Originally Posted by PinnacleProdUK ➡️
Thanks for the reply's,

bgrotto- i fully understand what you are saying.... i know that my little old bluetubes plus are not recreating the exact pultec EQ and the difference is vast considering my plugs cost a couple of hundred pounds and a pultec EQ cost in the region of a few thousand pounds... I also understand that vintage EQ untis have their own unique character and sound which is hard to "recreate" using software and its not the curves alone which define the sound!

Belive me if i had the money i would get a pultec, and a fairchild, and a SSL console. but for now i have to make do with my blutubes which according to nomad factory has pul-"tech" (lol) EQ "style"!

What i am trying to understand is exactly what my plug in is doing to my signal so i can come as close to it using an alternitive EQ plugin..

Thanks for the reply anyway.

7thangelz- thanks alot for that, i will certainly check that out, it looks like it can some way to help me figure out what im looking for. cheers

thanks again!
What a real Pultec does, in addition to its EQ curve, is a complex combination of distortion and phase-shift, among lotsa other things that are waaaay beyond my grasp of understanding, that cause it to sound like it sounds.

The plug can simulate the STATIC characteristics of these units, however the real hardware responds DYNAMICALLY to signals. That means, when you hit the hardware harder, it sounds different. If the hardware is met with varying impedences, it sounds WAAAY different (sometimes to a fault). How long the unit's been powered on can even make it sound different. These are the impossible-to-recreate characteristics of the gear we know and love.

As for re-creating it with other plugs: you might be able to match the curve, however, presumably these plugs are doing more than just an EQ curve. They're likely adding harmonic distortion and other desirable distortions, so it's impossible to find a truly comparable processor.

Anyway, my point is, trying to copy the characteristics of the hardware is impossible. Even trying to copy the characteristics of the plugs is highly difficult; it goes WAY beyond EQ curves, and even doing your best to match the graphic displays on the plugs themselves is useless, as those displays are far from accurate. You're better off finding a substitute you like that doesn't necessarily need to be set the same way to achieve the results you desire.
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