I had a couple short hunts this weekend and didn't do bad. First was a fort site from 1890' through early 1950's that I've hunted for years. The other a large ghost town site. Hit the well worn seated dime at about 8 inches deep on my second swing. date is 187?. It was my first chance to use my new Killer B's. I was having a hard time separating the tones for the first time so I switched back to my Sony Studio headphones and I was able to separate the tones much better. The Killer B's are 150 Ohm and the Sony's 28 Ohm. Would that be the reason Minelab recommends the lower impedance? Does the lower impedance have something to do with tone separation? Thanks!
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Weekend finds and a question.
- Thread starter crazyman
- Start date
Crazyman good hunt.I usually use the meter for target separation from 173-180.I have an old pair of Timber Wolf headphones,which work fine.HH Ron
JASONSPAZ1
New member
I would like to know the answer to using lower impedance phones for my SOV GT. I use Killer Bees as well and I always thought that the tones where fuzzy. May bey I should switch to my Koss UR-30 phones?
Krazyman, what do you think are a better set of phones for my Sovereign Gt.
Thanks
Jason
Krazyman, what do you think are a better set of phones for my Sovereign Gt.
Thanks
Jason
To tell you the truth, I don't know. I always used the smaller Sony headphones in the summer months because the larger headphones made me sweat to much. When I started using the Sovereign it was still summer so these where the headphones I was using while learning the tones. When I tried my regular phones I didn't like the tones as much. When I tried my new killer B's this weekend I could barely tell the difference between a nickel and an Indian Head penny. I don't know if the difference in Ohms was the cause or just that my ears where trained for the tones on the Sony headphones. I'm gong to be getting a meter so maybe I just need to work with the Killer B's and the meter. I'm not sure if it will make any difference though. Another thing is the tones with the Killer B's seemed to be harsh or raspy compared to the smoother tones of the Sony's.
Sven
Well-known member
I used Sony MDR-200 headphone speakers in my first pair of headsets I made last year. They were great! The headset cost me $1.00 at a garage sale.
And they were also 28 ohm.
I also went with higher 600 ohm speakers when I made my headset a few months ago. On my Minelab Sterling/Musketeer XS, I am also finding it harder to tell the difference between targets. So I am also going back to using 28 ohm speakers from another headset in my next headset and seeing how they sound.
And they were also 28 ohm.
I also went with higher 600 ohm speakers when I made my headset a few months ago. On my Minelab Sterling/Musketeer XS, I am also finding it harder to tell the difference between targets. So I am also going back to using 28 ohm speakers from another headset in my next headset and seeing how they sound.
Sven, I think I'll pick up a pair of Jolly Rogers. The Impedance is even lower at 16 ohms and see how they compare. I'm still not sure how different ohms effects the detectors signal so I'll just have to learn through trial and error what ohms are best for me to separate the tones on the Sovereign as well as my Advantage.
My Sov GT came with a lot of other goodies when I purchased it 2 weeks ago. A backpack, carry bag, canteen, compass, first aid kit, mag flashlight and the Koss UR 30 phones. All shipped direct to me from Mindlab in Las Vegas. Would it be safe to assume that these Koss phones would be the optimum impedance for the Sov since they came from Mindlab?.
Found the following info re3: Koss UR30's on the web. I like the lifetime warranty, what do all think about these Koss Phones?
In my first years of treasure hunting I went through a few different brands of headphones, they all did not last long, until I discovered Koss headphones. Their excellent sound quality, durability, and life-time warranty made me forget other brands forever. Since 1996, I have used only three pairs of Koss headphones, each "exhausted" pair was replaced by the manufacturer at no cost, no questions asked.
When I got my Explorer II, I was pleasantly surprised to find a collapsible Koss headphones along with my new machine in a box. Finally the Minelab gave up issuing the poorly designed set, which would last only a month of excessive detecting, in favor of a high quality and timeless brand.
Koss Headphones UR-30
Koss Headphones UR-30
Collapsible Headphones Easily Fit Into A Cargo Pocket
Collapsible Design
KOSS UR-30 SPECIFICATIONS:
Frequency Response: 18-20,000 Hz
Impedance: 100 ohms
Weight: 12 oz.
Sensitivity: 101 dBSPL/1mW
Distortion: <0.2%
High Fidelity Stereophone utilizes an anisotropic magnet and 1.4 mil mylar element for deep bass and tremble clarity
Closed, leatherette ear cushion creates a seal around the ear for outstanding bass performance and isolation
Built for maximum durability
Collapsible design allows for maximum portability, easy storage, and protection
Straight, single entry 8 foot cord for home and portable use
Includes 1/8" and 1/4" stereo plugs for home and portable use
Life-Time Warranty
You can find and compare Specifications, Features, Prices, Users' Reviews and Ratings - all helpful Information, for headphones designed for metal detecting at Headphones Reviews Page.
In my first years of treasure hunting I went through a few different brands of headphones, they all did not last long, until I discovered Koss headphones. Their excellent sound quality, durability, and life-time warranty made me forget other brands forever. Since 1996, I have used only three pairs of Koss headphones, each "exhausted" pair was replaced by the manufacturer at no cost, no questions asked.
When I got my Explorer II, I was pleasantly surprised to find a collapsible Koss headphones along with my new machine in a box. Finally the Minelab gave up issuing the poorly designed set, which would last only a month of excessive detecting, in favor of a high quality and timeless brand.
Koss Headphones UR-30
Koss Headphones UR-30
Collapsible Headphones Easily Fit Into A Cargo Pocket
Collapsible Design
KOSS UR-30 SPECIFICATIONS:
Frequency Response: 18-20,000 Hz
Impedance: 100 ohms
Weight: 12 oz.
Sensitivity: 101 dBSPL/1mW
Distortion: <0.2%
High Fidelity Stereophone utilizes an anisotropic magnet and 1.4 mil mylar element for deep bass and tremble clarity
Closed, leatherette ear cushion creates a seal around the ear for outstanding bass performance and isolation
Built for maximum durability
Collapsible design allows for maximum portability, easy storage, and protection
Straight, single entry 8 foot cord for home and portable use
Includes 1/8" and 1/4" stereo plugs for home and portable use
Life-Time Warranty
You can find and compare Specifications, Features, Prices, Users' Reviews and Ratings - all helpful Information, for headphones designed for metal detecting at Headphones Reviews Page.
Myself I found the Koss that come with the Minelabs are not that loud for me and not the good quality of some other headphones. The ones that work the best for me for volume and tone have been the Timberwolfs and the Troy Pros and now I just got a new set to try out that also seem to be good and made and sold my Jim at Anchor Detectors that also are loud for us with bad hearing. The Sun Ray Pro Golds are also a very good set, just dont have as much volume as my Timberwolfs on the Sovereign. The Gray Ghost also are very good and all of these come with a warranty also and made for us that detect.
Headphone are very important as if you cant hear the signal of a deep target you will never dig it either.You want the best headphones to use with the best detector to find the best targets many have walked over for years.
Headphone are very important as if you cant hear the signal of a deep target you will never dig it either.You want the best headphones to use with the best detector to find the best targets many have walked over for years.
Critterhunter
New member
I do have a background in electronics (Went to HVAC tech school and also always played with various electronic projects) but speaker specs are not my strong point. I would assume (based on my knowledge in other areas, but may very well be wrong) that the higher the ohms (resistance) the more signal strength (voltage) required to overcome the internal resistance of the speakers. Meaning, higher ohm speakers require more power to properly drive them. What backs this theory up for me is that the Grey Ghosts I used on my GT with a higher impedence required the volume on the detector to be all the way up and the volume on the headphones to be almost at max. Now, with these lower ohm Sonys I find that I need the GT's volume dial at it's lowest level and even then the headphones (no volume control on them) are just a tad too loud unless I move them slightly off my ear. Maybe I'll just pack a little foam into each ear cup.
Anyway, if all this is true then higher ohm headphones would have a lower/flatter sound quality to them as the little subtle sounds are unable to properly break through the resistance of the speakers. While lower ohm speakers would more easily allow the signal to break through and thus you hear the softer and less robust parts of the signal as well, giving them a richer audio sound. If Minelab specificies 32 ohms then I'd expect that this is the best resistance for the range of volume control on the detector, in that you wouldn't need a control on the headphones to get it just right. Lower ohm headphones shouldn't be a problem and might offer even a bit more of the lower audio signals for richer sound, but unless you've got a control on the headphones the dial on the GT might not lower the volume enough. I'm sure it's more complicated than all this and that the frequency response has a lot to do with the quality of the tones as well but I'm no expert on speaker electronics. That's my stab at it and it's probably wrong, but I do know that the lower ohm headphones give me much better audio harmonics.
Anyway, if all this is true then higher ohm headphones would have a lower/flatter sound quality to them as the little subtle sounds are unable to properly break through the resistance of the speakers. While lower ohm speakers would more easily allow the signal to break through and thus you hear the softer and less robust parts of the signal as well, giving them a richer audio sound. If Minelab specificies 32 ohms then I'd expect that this is the best resistance for the range of volume control on the detector, in that you wouldn't need a control on the headphones to get it just right. Lower ohm headphones shouldn't be a problem and might offer even a bit more of the lower audio signals for richer sound, but unless you've got a control on the headphones the dial on the GT might not lower the volume enough. I'm sure it's more complicated than all this and that the frequency response has a lot to do with the quality of the tones as well but I'm no expert on speaker electronics. That's my stab at it and it's probably wrong, but I do know that the lower ohm headphones give me much better audio harmonics.