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GPX 4000, 4500 and 5000.. real difference?
Posted by: BetaGod
Date: April 26, 2015 01:45PM
Hello guys, I would buy a metal detector like GPX.. ( I haven't considered the old series SD and GP because i read the GPX series are more stable with better discrimination).. I don't need to find gold (i'm Italian and here i can't get gold :angry: ) but i need to use it in some land really mineralized for find some deep target!

I don't know which are the real difference between GPX 4000, 4500 and 5000.. someone can explain? the maximum depth is the same for SD, GP and GPX?

Thank you so much and sorry for my english :heh:

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Re: GPX 4000, 4500 and 5000.. real difference?
Posted by: steve herschbach
Date: April 27, 2015 01:00PM
Don't forget the GPX 4800. The four GPX models are basically the same detector but each model on the series offers additional ground handling settings compared to earlier models, with nugget detecting in mind. For relic hunting any of them would probably serve about as well, but there are many good buys on the GPX 5000 right now as people upgrade to the GPZ 7000.

Minelab still services and supports all the GPX models. SD and GP series units are now considered obsolete. http://www.minelab.com/emea/customer-care-1/obsolete



Minelab GPZ 7000, Gold Monster 1000, Equinox 800; Garrett ATX; Makro Gold Racer; White's V3i/Bigfoot; Garrett Carrot; Sun Ray Pro Gold




Re: GPX 4000, 4500 and 5000.. real difference?
Posted by: BetaGod
Date: April 27, 2015 01:02PM
I'm thinking about 4000 or 4500 (for relic hunting).. which goes deeper?
In italy is really hard to find an used gpx :(

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Re: GPX 4000, 4500 and 5000.. real difference?
Posted by: steve herschbach
Date: April 27, 2015 02:38PM
the GPX units are all about the same for depth on relics.



Minelab GPZ 7000, Gold Monster 1000, Equinox 800; Garrett ATX; Makro Gold Racer; White's V3i/Bigfoot; Garrett Carrot; Sun Ray Pro Gold

Re: GPX 4000, 4500 and 5000.. real difference?
Posted by: BetaGod
Date: April 27, 2015 05:26PM
So i think the 4000 is the best choice for the price! :D

Re: GPX 4000, 4500 and 5000.. real difference?
Posted by: BetaGod
Date: April 29, 2015 08:04AM
What about sd2200v2? Is good for disc like the gpx series? Same depth?

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Re: GPX 4000, 4500 and 5000.. real difference?
Posted by: steve herschbach
Date: May 03, 2015 03:05PM
The 2200 has disc but not as finely tuned as the GPX. Depth on large stuff in about the same. The Minelab models over time saw more improvement on small targets than on larger targets.



Minelab GPZ 7000, Gold Monster 1000, Equinox 800; Garrett ATX; Makro Gold Racer; White's V3i/Bigfoot; Garrett Carrot; Sun Ray Pro Gold

Re: GPX 4000, 4500 and 5000.. real difference?
Posted by: BetaGod
Date: May 03, 2015 06:04PM
so for a coin or something like this the depth is the same... good i bought a sd2200v2 :D now i'm trying to use a lipo battery for better stability threshold (constant voltage) and better power (sensivity and depth i think). Now I just have to figure out the better voltage.. in some forum i read "if the voltage is more than 6.3v, and less than 8.5v, there should not be a problem. Any voltage greater than 6.3v should give an increase in depth up to about 8.3v. Generally once you go above 8.3v there is no more advantage, and if you go too high you could cause problems with your detector:( Also the Ah (amp hour) rating needs to be taken into consideration so you battery does not go flat after 1 hour of detecting." so i think 8.3 is the better choice.. i can use a 11.1v lipo with a voltage regulator with a trimmer!

Re: GPX 4000, 4500 and 5000.. real difference?
Posted by: iron bark
Date: May 05, 2015 01:06AM
GO for a 4500 they have a amp in the battery when using a speaker the 4000 does not and the 5000 does for relic hunting you would be paying for features that you will not use on a 5000 .4500 are a good stable detector I do not think that the discriminator has improved on any of the minelab PI detectors regards john:ausflag:

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Re: GPX 4000, 4500 and 5000.. real difference?
Posted by: Mega
Date: August 02, 2015 03:49PM
Must admit after the massive price drop of late in the GPX range it has been very tempting to put one hand in ones pocket and shell out for one of these machines,the main use for mine will be for hoard hunting in the UK,so basically dont need the improvements that had been made for nugget hunting,so a earlier model could do the job that i want from it.

But of course if a 5000 model came along in superb condition at the right price,i may even push the boat out even further for one of those,the bottom line is that i am a bit of a tight wad when it comes to spending money.



Deus and Nexus MP main everyday detectors

Displays on a Detector are really the equivalent of relying on sub-titles,give me a Analogue machine anyday.

Some of my site specific use machines.
TDI Pro 20'' Mono
Nexus SE dual 9'' coil
Nexus MP 14x13
Fisher TW-5 twin box
Crossbow PI Coiltek 14x9 Mono
Mirage PI 5'' Mono
DFX 18'' Detech
T2 SEF15x12
IDX Pro 15'' Concentric
Arado120b
B1 and B3
Trident11 Extreme NEL Snake


Mainly hunt deep ploughed and pasture sites,trashy roman/saxon and celtic permissions.

Re: GPX 4000, 4500 and 5000.. real difference?
Posted by: ali5844
Date: December 19, 2016 11:58PM
Back light- Off - 3 Volume Limit- 19 - 17 Ground Balance Type- General - same Special- Sensitive Extra - same Manual Tune- Range between 90 & 100, usually 95 - 96 (10 above is someone else is close, 10 below if EMI occurs) Deep- Motion slow - same RX gain- 7 (This can vary depending on atmospheric conditions) - same Audio- Normal - Deep Audio tone- 50 - 32 Stabiliser- 6 (This varies with RX gain) - 8 Signal- 19 - Same Target volume- 12 - 16 Reponse- Normal - same Tracking- Medium - Slow Iron reject- Off - 8

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