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Whites Spectra V3 and V3i
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XP Goldmaxx Power


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Whites Spectra V3 and V3i
XP Goldmaxx Power
Feature comparison between Whites Spectra V3 and V3i and XP Goldmaxx Power
Options Whites Spectra V3 and V3i XP Goldmaxx Power
Detector Type Coin and Relic Detector Coin and Relic Detector
Price $1500 $1100
Manufactured in 2009 2007
Battery Type 8 AA 8 AA
Weight (Lbs.) 4.4 3.4
Operating frequency 2.5, 7.5, 22.5 kHz. 18 kHz.
Display Yes None
Backlight Yes No
Target ID 191 Segment Numeric+Icons Audio
Tone ID 255 Tones Multi Tone
Search Modes
  • Coins/Jewelry
  • Salt Beach
  • Relic
  • Prospecting
  • Deep Silver
  • High Trash
  • Meteorite
  • Hi Pro
  • Mixed Mode Pro
  • Custom
Ability to change coils Yes Yes
Ground balance Auto, Manual, Custom Manual
Waterproof Coil only Coil only
Warranty 2 Years 2 Years
Number of Reviews graph 29
graph 4
graph 4
graph 1
graph 2
graph 9
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Avg. User Rating 4.42 4.21
Avg. Durability Rating 4.88 5.00
Avg. Ease of Use Rating 4.50 5.00
Avg. Depth Rating
Depth value
Depth value

Most helpful review for Whites Spectra V3 and V3i

Jer from Ks
I have only had this for 2 weeks but I like it better than the DFX. For those people that are good with the DFX it may be a good call. I don't recomend it for one just starting out. If simple is what is desired then this is not ideal. It is the only detector that I ever used that shows what every frequency is doing in color (lots of info at once on screen). It does find deep targets and id them well once ya learn how to interpret all the info on screen. Like the DFX it will be a useless noise maker if one doesn't know what they are adjusting.

I HIGHLY recomend reading the manual cover to cover. I found lots of things this can do that I wouldn't have found exploring the menus. The menu system is not bad. most changes can be made and auto saved without entering menu mode. I like it complex and this is turning out to be my favorite detector. I also like the wireless headphones even though the price seems a bit high at $250 if not purchased with the detector.
Jerry from Wichita, Ks.

Thumbs up! 137
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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