So I got my 705 this past week and find it to be an excellent md. I'm shopping for an additional coil for parks, fields, yards, etc. mostly coins and jewelry. I've narrowed it down to the Minelab 9" 3 kHz Concentric or the Minelab 10.5" DD 7.5 kHz. I know the 3kHz will not be good for small jewelry but I'm reading it's an outstanding coil. I know they're both great in what they do, tough call. Any thoughts from users?
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Minelab 9" 3 kHz Concentric or the 10.5" DD 7.5 kHz?
- Thread starter mike5853
- Start date
MADCLADDER
New member
The DD coil would be my choice. MoRelic proved that to me in his test garden. But Heck I am a rookie
It would depend almost entirely on your soil conditions Mike. I bounce back and forth between my 7.5 DD and my 3kHz, using the 3kHz whenever possible. Conditions here are so varied, that I can be one place with the 3kHz with the SENS @ 28 (pretty much wide open), then drive 45min to another site where it's a toss up between the MF DD w/SENS @ 19 or the HF DD w/SENS @ 26.
If you already have an HF DD, then the next logical progression would be the MF DD. If you find that you can run it virtually wide open with the MF DD, then a 3kHz might be attractive. And at the least, with the MF DD you'll have more depth in good ground, and the separation of a DD.
If you already have an HF DD, then the next logical progression would be the MF DD. If you find that you can run it virtually wide open with the MF DD, then a 3kHz might be attractive. And at the least, with the MF DD you'll have more depth in good ground, and the separation of a DD.
That being the case, I'd probably keep a lookout for bargans on used coils in either frequency. It sounds like you might make good use of a 3kHz, but they are a tad scarce at the moment. And you will at some point want an HF DD anyway.mike5853 said:
I just got a new 3kHz and am anxious to try it out. We have areas of both high and low mineralization in Montana so it should be interesting.
So far I like my 10.5"DD MF for general searching , and 6' concentric for trashy areas, then the 5x10" DD HF for prospecting, jewelry and aluminum LOL
Now I hope to have a new favorite for deep silver and copper coins! They may never make it in DD so I had to pull the trigger and get this one now.
So far I like my 10.5"DD MF for general searching , and 6' concentric for trashy areas, then the 5x10" DD HF for prospecting, jewelry and aluminum LOL
Now I hope to have a new favorite for deep silver and copper coins! They may never make it in DD so I had to pull the trigger and get this one now.
Even if someone does introduce a 3kHz DD, there will always be a good market for the concentric, should you decide that you don't want it.stylesjay said:
I'll keep my 9" concentric until someone comes out with a bigger one, regardless of what may turn up in a DD.....unless it's big!
I have been trying to get my hands on the 10.5" 7.5khz DD but I think my mind is slowly changing. I live in South Louisiana and we dont have mineralization problems that folks up north have so I would think the 3khz would rock for relic hunting. What would be the average depth that a 3khz will give you?
If you just want to concentrate on deep silver, then the low frequence coil should serve you well. If you want to go deep, but want to find all sorts of stuff, including small gold rings and very small silver, the medium freq. DD coil would be my choice. I have had more success with my medium frequency coils and my high frequency coil than I have with my 3 kHz coil, with both gold and silver. But that's me, not you. Good luck with your choice. HH
Delaware Bill
Member
I understand that for Civil War Relics the 18.75 10.5" DD is a killer on deep bullets.
I own both coils.
Used the 10.5 DD 7.5kHz a lot when I first got it. Average success.
Now it sits mostly in the closet unless I'm hunting a large open area.
I keep the stock coil on the XT-70 and the 3kHz 9" on the XT-705 which I find works well for most of the areas I hunt just south of Atlanta, mixed red clay and fresh water beaches.
The 3kHz coil (coin killer, great depth) can find some small jewelry, but the stock coil finds more.
I've never found small jewelry with the 10.5 DD 7.5 khz, but maybe that's just me.
I see you have a Vaquero, so do I and it find's small jewelry like tiny ear ring posts at 2" to 3''s and small ear rings down to 5'.
The XT can compete with that using the 6" DD 18.75 coil but not the others in my experience.
Of course you have a much better chance of knowing what your digging with the XT.
Good Hunting
Denny
Used the 10.5 DD 7.5kHz a lot when I first got it. Average success.
Now it sits mostly in the closet unless I'm hunting a large open area.
I keep the stock coil on the XT-70 and the 3kHz 9" on the XT-705 which I find works well for most of the areas I hunt just south of Atlanta, mixed red clay and fresh water beaches.
The 3kHz coil (coin killer, great depth) can find some small jewelry, but the stock coil finds more.
I've never found small jewelry with the 10.5 DD 7.5 khz, but maybe that's just me.
I see you have a Vaquero, so do I and it find's small jewelry like tiny ear ring posts at 2" to 3''s and small ear rings down to 5'.
The XT can compete with that using the 6" DD 18.75 coil but not the others in my experience.
Of course you have a much better chance of knowing what your digging with the XT.
Good Hunting
Denny
kirk01 said:
Thanks Denny - I did a series of videos on the Vaquero, under '53Silver. I think it's one of the best md's on the market today, out performing md's much higher in cost. Most of my recreational hunting is for coins, so the 3kHz is probably the way I'll go after I use the 705 for a while this Spring. Really looking forward to running the 705 in real world conditions and comparing it to my MXT as well.
I think that is whats nice about the XTerra 705.
The coil choices and the 3 different frequencies put it in a category to fit many different needs and do it well.
The XTerra with it's 18,78 kHz and the Vaquero with 14 kHz are similar in that respect but I also like the 3 kHz that the Vaquero can't offer.
I would like to try the Vaquero. What is your favorite coil for coin/rings hunting in average to hot ground? HH
The coil choices and the 3 different frequencies put it in a category to fit many different needs and do it well.
The XTerra with it's 18,78 kHz and the Vaquero with 14 kHz are similar in that respect but I also like the 3 kHz that the Vaquero can't offer.
I would like to try the Vaquero. What is your favorite coil for coin/rings hunting in average to hot ground? HH
I"ve been using the 3 kHz coil since they became commercially available. Actually, since I field tested them, I was using it before they were commercially available. As such, I'd offer that there isn't a design issue. I suppose it is possible that there was a recent production issue, as production runs may vary. But I don't know that to be true or if that is the reason for the backorders. What I do know is, that for several years now, I've been singing the praises of the LF concentric for deep silver and copper coins, at moderately mineralized sites. Regardless of the reason, the LF coil is worth the wait! JMHO HH Randy
mike5853 said:
You will love the 3kHz coil when you can get one, but don't sell the 7.5kHz stock coil short.
Some of my best finds have been with that coil.
Your videos on the V were instrumental in my deciding to add one to my arsenal.
Good compliment to my X-Terra's.
"I think that is whats nice about the XTerra 705.
The coil choices and the 3 different frequencies put it in a category to fit many different needs and do it well.
The XTerra with it's 18,78 kHz and the Vaquero with 14 kHz are similar in that respect but I also like the 3 kHz that the Vaquero can't offer.
I would like to try the Vaquero. What is your favorite coil for coin/rings hunting in average to hot ground? HH"
I agree Stylesjay, 3 different frequencies are great.
I'm a newbie with the V and only have the stock coil.
For coins and rings, I like the stock coil, for coins only I like the 3 kHz best (but it will find rings also).
The V works well on small jewelry, about what you would get with 6" 18.75 coil on the XT.
I do have some problems ID'ing deep iron with the V, but maybe that's because I'm new to it.
Good Hunting
Denny
Tired Rooster
New member
mike5853 said:
Having just purchased a 3Khz coil a few weeks ago and not used it yet, I was a little concerned about there possibly being a problem with them. Especially since it was a bit hard finding a dealer that actually had them. So, I emailed Minelab directly and asked them if they were experiencing any problems with their 3Khz coils. Brian at Minelab emailed me the very next day saying that he was not aware of any issues with these coils. He also said that if I did happen to have any problems that they would take care of it but to his knowledge there were no issues. I hope that this may put some that were worried by this at ease. It did me. By the way.........very prompt on the response by email. I appreciated that.