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Finally Minelab Take Responsibility For Screwing Up The GPX 6000 Speaker


phrunt

The GPX Audio Fix Poll  

14 members have voted

  1. 1. Have you had the audio/EMI fix done to your GPX 6000 - if you plan to get it done please don't answer the poll until you've got it back and tested it

  2. 2. Did the fix improve your built in speaker EMI stability

    • Yes
    • No
      0
    • Not sure, possibly
    • Not sure, I don't think so
      0
    • Don't care, not getting it done
  3. 3. Did the fix improve overall stability or improve the detector in some other way?

    • Yes
    • No
      0
    • Not sure, possibly
    • Not sure, I don't think so
    • Don't care, not getting it done


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2 hours ago, Norvic said:

Something is not right about this "upgrade" it appears a sort of a rushed backyard repair of a complex piece of electronics, a stop gap solution, too many 6Ks are having problems and not just whilst using the speaker but there are many others who aren`t. They cannot be the same machine and all are faulty. Because I`m not having troubles I`ll wait and see what time brings. Sort of if it aint broke dont fix it. Time will tell and we`ll all know then.

Many detectors helped and changed my life Phrunt the 6Ks just the latest, tis a magic machine.

I'm in the same camp as Norvic.  I got one of the first 6's to hit the US.  Noticed all the little fits right from the start.  Tried to figure what was causing the fits and reading on the forum from others with a 6 and their issues.  I went from thinking it was a loose cable at the powerhead, detecting wet clay, the speaker, fits in the morning hours, then thought using the headphones stopped the fits, and aircraft, etc.?  Anyways, I was all over the map on what caused the fits and in the end before I sold the machine the ONLY thing I could definitely say that I KNOW caused fits in my areas and my 6 was aircraft overhead.  There may be other factors also but aircraft was my biggest emi issue.  I could literally listen to my machine start a fit, then get worse and as I watch the jet slowly leave my airspace the machine would start to settle down and once jet was gone machine back to normal smooth threshold then continue hunt.  Towards the end of my owning/using the 6 it got to where I'd rarely waste my time doing noise cancels, they never seemed to help.  Machine starts a little fit, I'd start looking for the aircraft, spot the aircraft, set machine on the ground, light up a smoke, let machine go wacko, watch plane leave, machine settles back down then continue hunt. The machine definitely impressed me several times but I got kinda frustrated losing 15min time every hunt, it adds up!  The 6 I had, even with a few fits, is nothing a guy couldn't get used to or work around and it is impressive at what it can do, just a little annoying at times.  The man I sold it to is doing great with it here in MT. and getting lots of gold.  I ask him about emi issues and he says a few fits now and then but just works around them and very happy with the 6.  In my opinion the 6 is just a super high strung sob, nature of the beast type deal, learn to work around it's faults and reap the rewards of it's strengths......

Been watching to see if the "fix" really is a fix.  Personally think the 6 is just a high strung sob, we'll see?????

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On 11/5/2022 at 11:23 AM, oneguy said:

 

Been watching to see if the "fix" really is a fix.  Personally think the 6 is just a high strung sob, we'll see?????

Just curious, you didn’t mention if you were using it with the internal speaker or with headphones. I assume you were using the internal speaker only? If so, is there any possibility it was a random coincidence that there happened to be a jet flying nearby?

I’m pretty certain in the videos I posted earlier on this thread that there were no jets overhead when my threshold went crazy after each time I turned the Bluetooth speaker off enabling the internal speaker.  I was at the bottom of a remote and steep canyon to get away from all EMI as possible where I videotaped it. In my case at least it was the internal speaker causing feedback and Minelab’s fix solved the problem. I can now use the external speaker and mono coils with no speaker feedback issues.

On another note, I’m sorry you had to sell it and I hope it wasn’t because of the feedback issue, hopefully you got a good price for it. I wonder how many other people sold theirs below market value because of this and not knowing there would be a repair for it later on. At least they’re probably looking at getting axioms which would be a good alternative, so things may have worked out better in the long run.

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I used the 6 without headphones, with corded headphones and the bluetooth.  Like I said above, trying to figure why the fits had me all over the map and the only thing I can say for certain is that 75%(?) of the aircraft overhead would cause some fits. I've had the 6 run smooth threshold most the day both with and without headphones.  Some days not many planes, some days up to 25 passed over?  Never ever paid any attention to aircraft....until I got the 6.  My time is limited and I need a machine that'll go straight to work without any BS so I sold it.  Took a $1100 hit but also dug close to an ounce with it so no biggy?  The 6 is just a little too high strung plus I don't hunt much with PI's anyways because of the trash aspect but keep the SDC for the times I want/need a PI.....it doesn't give any "fits", just works!  Not sorry I parted ways with it at all, just don't need the little aggravations that go along with that machine (imo).....

I hunt on side a mountain in steep ground above the canyon and I often wondered if the terrain might act like a funnel as far as the airplane emi...???

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There must be something funky about those American Aeroplanes as I detect often with my 6000 right near an international airport, a busy one too and I've never once had an aeroplane cause my 6000 any EMI issues even from day one with the faulty coil and EMI speaker issue, nor the helicopters that are constantly buzzing around above me with tourists looking around the mountains.  I too am down in the gully below close mountains, well on the way down to the river at the base.    It's just so strange how we each have our own unique experiences, no wonder it ends up in the odd occasion people step outside of the forum for a few minutes to duke it out.  🙂

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I never had an issue with airplanes myself. My friends 6000 he keeps telling me he has issues with airplanes, helicopter and 4 wheelers. He says he can hear 4 wheelers approaching a 1/4 mile away. He only uses headphone.

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After eliminating the overwhelming speaker EMI, it's now easier for me to identify other EMI sources affecting the 6000. 

Electric fences are one - they interfere much further away than I assumed at first. Another is heavy winds, I believe some static electricity component is at work there, and it's probably part of the reason I had worse problems at higher altitudes. I still am leaning towards some specific types of cell towers interfering as well, they may be sorts that have additional lower VLF or similar lower frequency transmitters/repeaters on them, or other co-located equipment, I haven't been able to verify this one for sure though. 

What I really hope is that this entire episode has convinced Minelab to build the next GPZ with much more robust shielding and EMI mitigation measures than the 6000 has. Serious detectors should have serious noise mitigation measures.

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I've probably talked to more people that have had no issues with planes than those that do?  No cell service near my diggings and I also don't own a cell phone.  No trains or electric fences here either and I doubt there's any TV transmitters, pretty remote?  I'm probably 400ft above the canyon floor on side of the mountain.  Anyways.... kinda curious about the "fix" but that's all because I no longer have to deal with it.  Once again...not bashing the 6 at all, quite impressive, just not the machine for me.  I'm a MONSTER MAN....lmao!

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12 hours ago, phrunt said:

   It's just so strange how we each have our own unique experiences

I don't know, I detect and that's it, really don't know the how's and whys things do or don't work? It has always been my belief as far as the 6 is concerned that your locations may play a big part in how that machine acts?  Just a gut feeling....

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11 hours ago, jasong said:

After eliminating the overwhelming speaker EMI, it's now easier for me to identify other EMI sources affecting the 6000. 

Electric fences are one - they interfere much further away than I assumed at first. Another is heavy winds, I believe some static electricity component is at work there, and it's probably part of the reason I had worse problems at higher altitudes. I still am leaning towards some specific types of cell towers interfering as well, they may be sorts that have additional lower VLF or similar lower frequency transmitters/repeaters on them, or other co-located equipment, I haven't been able to verify this one for sure though. 

What I really hope is that this entire episode has convinced Minelab to build the next GPZ with much more robust shielding and EMI mitigation measures than the 6000 has. Serious detectors should have serious noise mitigation measures.

5G cell service has permeated much of the US by now, probably not so in Australia. I suspect it’s another culprit. Also being up high on mountains may increase your exposure to microwave repeaters, those are common on mountain peaks to beam telecom signals over them. Since microwaves only work line of sight, as you walk around different valleys, hills and peaks, you’re going in and out of their different shadows.

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