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Minelab Xterra 705
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XP Goldmaxx Power


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Minelab Xterra 705
XP Goldmaxx Power
Feature comparison between Minelab Xterra 705 and XP Goldmaxx Power
Options Minelab Xterra 705 XP Goldmaxx Power
Detector Type Coin and Relic Detector Coin and Relic Detector
Price $900 $1100
Manufactured in 2010 2007
Battery Type 4 AA 8 AA
Weight (Lbs.) 3.1 3.4
Operating frequency 3, 7, 18.75 kHz.
based on coil
18 kHz.
Display Yes None
Backlight Yes No
Target ID Audio+Numeric Audio
Tone ID 1 - 4 or 28 Multi Tone
Search Modes
  • Coin/Treasure
  • Prospecting
Ability to change coils Yes Yes
Ground balance Auto, Manual, Custom Manual
Waterproof Coil only Coil only
Warranty 3 Years 2 Years
Number of Reviews graph 16
graph 2
graph 1
graph 2
graph 9
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Avg. User Rating 4.38 4.21
Avg. Durability Rating 5.00 5.00
Avg. Ease of Use Rating 4.80 5.00
Avg. Depth Rating
Depth value
Depth value

Most helpful review for Minelab Xterra 705

I love it
I have had my minelab xterra 705 for about 4 months and just love it. I was using a Bounty hunter landstar before that and that machine did a good job for the $$$, but as I got more into the hobby I wanted a machine that was simple to use with good depth and dependable. I payed about $800(Canadian) for it and it was worth it.

Learning the machine was not bad at all and it is spot on with depth and pinpointing. I have found all sorts of things with it from rings to old coins and much more.
It is light weight and battery life is very good, you can also get 6 or 7 after market coils, so you can upgrade it to your preference. The control box is weather resistant but I did invest in the enviromental cover for about $15. I have used a few detectors like whites dfx and xlt and they worked great too but they are a few hundred dollars more so if you are serious about detecting or just starting out the xterra 705 is an all around GREAT machine.
Stre-Chie from Vancouver B.C. Canada

Thumbs up! 219
Read all reviews for Minelab Xterra 705

Most helpful review for XP Goldmaxx Power

Best detector I’ve owned.
Got myself the GMP about 5 months ago, and I am very pleased with the results so far. I've been detecting for nearly 17 years now, and have used a Tesoro Silver Sabre 2, a whites DFX, a Golden Mask +3 (hideous machine!) and more recently, a Laser Hawkeye. The GMP is definitely my favourite machine to date, (once you get the hang of how it works). I have found more hammered silver coins with this machine in the five months I've been using it, than I ever found with any of the others!

I think some of the reviewers here who have mentioned the GMP being unstable, may have been trying to run it ‘too hot?' I know the sensitivity has a mark that says set it to the 3 ‘o clock position, but that only really works on clean ground, where you can run it that hot! The ground I detect in the UK is pretty contaminated/mineralised, and the hottest I've ever managed to run the sensitivity is at the 1 or 2 ‘o clock position, but a lot of the time I'm at 12 ‘o clock, and sometimes even as low as the 10 ‘o clock position! This is not a problem though, as in air tests show that you can turn the sensitivity right down if you need to, and the loss in depth is negligible.

I wouldn't recommend using this machine on the beach, (definitely NOT on wet sand) as this machine was never designed to be a beach machine in the first place. It excels inland though, as that's what it was built to do!

Where this machine really pulls it out of the bag, is on busy iron contaminated sites, like Roman and Medieval settlements. I now have the confidence to slow right down, and get in between all the iron, because that's where the goodies are, and I KNOW that this machine has such a fast recovery speed that I WILL find stuff there! In the past, with any of my other machines, I would have just walked away from those areas, because they would have either become too unstable to use, or just nulled out due to iron overload.

It's a great machine in the right places, but then like any other detector out there, no one machine is going to cover all the bases! Use this detector on the type of ground it's designed to work on, and everyone else will be eating your dust!

As regards setting it up, the accepted wisdom is;
Sensitivity: 12 ‘o clock
Ground: 11 or 12 ‘o clock
Silencer: 1 (but 0 if you're needing super fast recovery- 2 if you're on quiet ground and want that extra depth).
Iron Volume: Try it at 10 ‘o clock to start with.
Iron Threshold: Start off with it set to 12 ‘o clock.

This is a good basic starting point for the settings, and you can raise or lower them as needed, to suit the ground you're on.
If you're plagued by ‘false' signals, you're probably trying to run it too hot! Turn the sensitivity down a touch. If you're getting ‘false' signals each time you knock the coil on the ground, then you've probably got the ground reject set too low. If you take the time to learn this machine and set it up right, then you'll be raving about the GMP as much as I am!

I hope this helps, and good hunting, whatever machine you choose. :)
Davey Of Oxfordshire. from Oxfordshire, England UK.

Thumbs up! 104
Read all reviews for XP Goldmaxx Power