Jump to content

Recommended Posts

Hi all,

I've done up a video comparing some of the new coils.

I'm an agent for Detech coils, but tried to be as unbiased as possible.

Be interesting to hear your thoughts on the results.

  • Like 1
Link to post
Share on other sites

Unfortunately no, I had enough gear to cart up to that spot, so didn't even bring the Zed with me that day. 

Link to post
Share on other sites

Good vid, thanks. That 12 looks like a hot little coil.


Do you think the performance of the DD was due to running it in Sens Extra instead of Fine Gold like the other coils? 

Link to post
Share on other sites

Good vid, thanks. That 12 looks like a hot little coil.


Do you think the performance of the DD was due to running it in Sens Extra instead of Fine Gold like the other coils? 


Yes, in Oz in 80% of ground you have to use Enhance or Fine Gold with a mono coil. Go to Sens Extra and you struggle with ground noise, and any advantage you may see in a air test is lost with targets in the ground. DD's will work okay in a lot of areas in Normal timing, and in most areas in Sens Extra, but the trouble is most older DD's are so far behind in sensitivity to smaller gold compared to Mono coils that it kind of defeats the purpose.


I was one of the few prospectors in Oz who has always pushed the many advantages of a DD coil, beyond being able to use Cancel mode. Less EMI, less affected by charcoal, greater ground coverage at depth (like an elliptical mono), less chance of tracking out a target etc etc. The 15x12" DD commander is an awesome little sleeper coil, particularly on the SD and GP series, but the new Detech 15" is deeper and more sensitive - it's only drawback is weight. But it will turn a GP or GPX into a poor mans GPZ. 


Can't wait till after summer and I'll head across to some patches were I think it may shine. 

  • Like 2
Link to post
Share on other sites

Cool, yeah I understand. I've always suspected a DD in Sens Extra can outperform (or at least equal) a mono in Enhance in some cases here in AZ too when the ground gets tough. Almost every coil on a Minelab in the field here in the US is a mono, DD's are underutilized when the ground gets bad over here just because so few people have experience with them or even still own them.


Are those Detech's spiral wound like the NF/Coilteks? What about the new DD's, whats different with those, are they spiral wound too on each lobe or something?

Link to post
Share on other sites

Yes the Detech 14" Ultra is spiral wound. The 15" DD ultimate is also a Spiral wind, I'd assume just the transmit but not 100% sure on that. I'd love to see what a 12.5" round spiral DD would do on small gold, but I think the 12" evo has small stuff covered. 

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Similar Content

    • By locator
      Hi. I'm looking for a smaller than the 6x10 DD coil for my White's detectors. Would like to hear how the 7" Ultimate performs depthwise and how target separation is.
    • By Joe D.
      Hey all,
         I was just wondering if anyone else know's anything about these 3 detectors! The flyers where in my new coil boxes! 👍👍

    • By bigtim1973
      I am looking at getting an after market coil for the MXT. Has anyone tried one of the Ultimate or SEF coils by Detech on their unit and if so which model and size did you get and how much of an improvement was it compared to the stock coil??

      Detech 13" DD Ultimate coil for V3i, VX3, M6, MX5, and all MXT models
    • By Skullgolddiver
      After a busy week, doing an effort between heavy rain interruptions, I finally finished this work!
      Thanks for all people involved in this project for their knowledge shared...
      Underwater test next week(I hope)
    • By Steve Herschbach
      I am not sure if anyone else is doing this (it appears to be a Coiltek sale but no mention on their website), but Chris at AZO is advertising Coiltek coils for the Minelab SDC 2300 at 20% off for the rest of the month or while supplies last.

       20% OFF the following premium Coiltek products:
      • 10x5 Gold Extreme: WAS $295 - NOW $236
      • 11" Gold Extreme: WAS $315 - NOW $252
      • 14x9" Gold Extreme: WAS $315 - NOW $252
      • Gold Extreme SDC Accessory Pack: WAS $67 - NOW $54
    • By Sourdough Scott
      This is welcome news to me and GPZ 7000 owners. Can't wait to find out more information on this. Hopefully 40% lighter and less expensive. 😝

  • Create New...