Lee Jackson GP-1000

Lee Jackson GP-1000

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GP-1000, Tube Guitar Preamp from Lee Jackson.

3 user reviews
Find it in the classifieds starting at $543 avg used price: $543Warning, this average price is older than 6 months
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Lee Jackson GP-1000 tech. sheet

  • Manufacturer:Lee Jackson
  • Model:GP-1000
  • Category:Tube Guitar Preamps
  • Added in our database on: 11/22/2006

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Lee Jackson GP-1000 user reviews

Average Score:4.7( 4.7/5 based on 3 reviews )
 2 reviews67 %
 1 user review33 %

rockguitariste's review (This content has been automatically translated from French)

Lee Jackson GP-1000
-The GP-1000 is a pre-amp lamps ALL
He has 3x 12AX7
An entry-front and one in the back
He has a stereo output
-Gp-1000 is a pre-amp Distortion
1U Rack-


The configuration is rather complex for a beautiful sound, it took me beacoup hours of use. There are still some in the manual setting of examples that are not so bad ...


The GP-1000 is made for ROCKERSSSS, be it rock or 70.80 years of Metal 90.2000 years, should have all its styles. I use it now with a Jackson RR and Marshall amp simulation ampe and the sound is VERY GOOD. It is pierced while having an incredible tone. However, I quickly noticed that this preamp is for professionals and you have the rest of the Professional Equipment that goes with it. So, I have managed to get by with my amp modeling preamp but it was designed to operate with a power amp tube. If you do not use it with a power amp tube, you for not pulling the full capacity of the preamp.


I use it for a year, this pre-amp is very rare and date of 80 years. This is why even though it is not my room that is the most expensive in money, it is she who is the most expensive in value. I bought it on ebay (about the only place there) and I paid about $ 450, rather expensive but I find that the trouble in Valle. Are only fault was that even on the Mettan chanel CLEAN, it distortionne so as soon as you plug your guitar in the Gp-1000 you have no choice but to Rocker. I WILL RÉACHETERAIS ANYTIME !!!!!

Blackbendi's review (This content has been automatically translated from French)" Alexi Laiho's for ..."

Lee Jackson GP-1000
A single input on the front, two master.
Three 12AX7 tubes. No effect.

So easy.


Very simple.
As drummer at the base, I do not know much. But there need not be in the middle of the guitar for a long time to understand.

You plug the guitar to the amp, preamp and the rest (depending on configuration).

The manual is readily available on the Internet, he explains precisely the connections to do any configuration.

This amp delivers pure sound easily Metalheads (vintage though)


Will it fit your style of music?
Ideally, the metal a little vintage.

This amp delivers a powerful sound with lots of treble, it is terribly accurate. And that palm mute ......... What a joy!

I use a preamp RT2/50 RANDALL, coupled with two speakers ROCTRON, all used with a Signature Alexi Laiho LTD. Result: A pure bliss!

on the other hand for the sounds, the knobs are good runs but the difference is not obvious. Except for knob disto. But the low volume pot for example ..... it's barely audible.


Firstly, I want to say I bought this preamp to get a sound approximating Children Of Bodom. Objective accomplished. Obviously I do not sound identical COB only preamp that is a hallmark of fabrique.On Desuite feels from the first notes played.
So I'm not agree with a notice previously posted, if you want to get closer to that famous sound COB, you can invest in this gem. However, it remains to note that if I have a sound that is similar is that I Laiho signature guitar and I played on a preamp ANY TWO LIGHTS and good speakers. Before it was on a Fender Hot Rod Deluxe, he spoke a lot less, it has nothing to do. You must leave some money for the rest of the stuff.

In short, a purchase that I do it again without hesitation. Counsel, the best to find it is ebay / with a price hovering around $ 400. The value for money remains interesting even if its price has increased due to the use (among other things) COB.
For you must know that it sounds very typical and somewhat versatile, do not expect to do anything other than hard rock or metal with this machine!

zman's review (This content has been automatically translated from French)" Very precise ... Too?"

Lee Jackson GP-1000
Everything has been said.
It is a very simple preamp: one channel, 3 12AX7, etc. no effect.
It's plug and play, that's why I put a very high note. Not because I'm a fan of the concept but because I'm assuming that no one buys a Gp-1000 for special effects or EQ to top ....

Perfection does not exist, I put 9.


Very simple setup!
I do not understand the previous review saying that it is difficult to configure it to have a good sound since turning knobs is accessible to any kid.
Moreover, Gp-1000 does not offer 10,000 sonic possibilities are extremely limited but I can only remain puzzled by the previous opinion which seems to imply that he is versatile ....
It was nice to turn the knobs, the difference is not mind-blowing for most of them.
The manual available online is useless so it's childish. It can however allow a better grip of the apparatus with the description of the effect of the various knobs on the sound.

So a good note on this point, it is really easy to use even though the manual is not really complete.


Is the hardest part for me to deal and score.
It is imperative that you read it because it is most important in my opinion (one that can motivate or disgusted with the purchase of the beast). I have your attention?

Ok good, I bought it having been very influenced by Alexi Laiho from Children of Bodom. I was looking for the same sound as in her first album.
If this is the reason you want to buy then go your way. You'll only bring you a vintage sound very good and very nice but never, EVER, you will have the same sound (and yes, I used it with a J-50BC-1000 and I installed everything in the an ESP SV / Jackson RR).

Now that this issue is addressed we can move on its sound, without influences.
It is obviously impossible to make out a clear, as stated in the previous opinion and I agree on this point, it's a preamp that is done for the surly.
But beware, this is not the preamp that will deliver a modern sound, fat, heavy, etc..
Its sound is clear, dry and sharp. It is anything but flexible.

I love me, that's what I was looking for but keep in mind that this is what I was looking for!
If you want vintage, but at the same time clear sound even a little modern disto go to the ADA MP-1 is a safe bet.

NOTE: I emphasize again, I put a note in the sound because it excels issued but be aware that this is knowing that he excels.
Let me explain: it is good if you know what to expect!
I think I might die laughing (literally) if I read a comment about the Gp-1000 a user would be said "disappointed" by its sound while searching for vintage sound that In Flames ...


I used it for 1 year with the SP-1000 is its complement in Poweramp.
I loved its sound, but I sold because of its lack of versatility.
I thought it would not bother me so well in the end.
I blame him accordingly this lack of versatility. It's amazing to see how it delivers a sound type. I promise that I would not hear the difference between the min and max some knobs!

I reiterate, it is a very good Poweramp that does its job and that can not be disappointed when we know what to expect.

I will not make this choice with the experience because:
1 - I switched to something else, other sounds
2 - a cruel lack of versatility is still unpleasant to force

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Other names: gp 1000, gp1000, gp 10 00, gp10 00

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