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:help:Koss UR-30 with in-line volume control ???? or not
Posted by: michaelosully
Date: February 06, 2012 05:45PM
OK...I already have the Koss UR-30's and two X-terra's. I have been happy with the quality of audio but now that I read fwcrawford's response to deese in another post and rethink Randy's recommendation (in his Understanding your X-Terra ebook) to run MD'ers volume on high and reduce volume at headphone, I wonder what I have been missing for the last year?

So my question is would I likely notice an improvement in my set-up by adding a in-line volume control? and...

If so, what brand of in-line volume control would be a good choice (if they vary in quality)?

All thoughts will be appreciated but please keep 'em simple...to match my simple mind!

btw...thanks deese for bringing this to my attention and thanks Randy for the great X-terra ebook.



X-Terra 705
10.5 MF DD
6" HF DD
9" MF CC
Garrett ProPointer

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Re: :help:Koss UR-30 with in-line volume control ???? or not
Posted by: David
Date: February 06, 2012 07:23PM
I also have UR-30's and I would also like to have an in-line volume control for it. Where can I buy one.?

There are 8, 30, and 150 Ohms in headphones. I think the higher the better, correct me if I am wrong.?

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Re: :help:Koss UR-30 with in-line volume control ???? or not
Posted by: Digger
Date: February 06, 2012 08:22PM
I did an internet search for headphone inline volume control and it appears Koss makes them as well. When you reduce the volume level with a limiter, you will likely need to raise the Threshold audio. Keep in mind that a low volume level or a "silent" Threshold may result in missing some small / deep targets. JMHO


As to your comments on the eBook.....you're welcome. HH Randy



You'll never know for sure......unless you dig it! HH "Digger"




After 40+ years of detecting, and having owned dozens of different detectors, I've come to the conclusion that maintaining success in the field is largely dependent on three things..... choice of site, acquiring a proper skill set for the detector and the detector itself..... in that order. Research, practice and persistence. There are no substitutes.

Re: :help:Koss UR-30 with in-line volume control ???? or not
Posted by: michaelosully
Date: February 09, 2012 12:15PM
Hope Randy will follow-up as I would like to know from he and other experts:
Is using a in-line volume limiter (like Koss has) any different than having headphones that have volume control built-in to each earcup??
In other words, if I set my X-terra volume at max and use quality headphones having built-in volume control (but volume turned down) will I not still need to adjust Threshold up? Or are the headphones with built-in volume control using different technology for volume control?

I would prefer not having my Threshold any higher than necessary and if that means buying volume controlled headphones to hear the deeper, smaller target...then I'll buy better headphones. If I must turn up the treshold when using a in-line volume control...seems like I have not gained anything by using the in-line limiter.

Thanks Randy for your response above and feel free to chime in again! I may have just found a good reason to spend some more $$'s on :detecting:.



X-Terra 705
10.5 MF DD
6" HF DD
9" MF CC
Garrett ProPointer

Re: :help:Koss UR-30 with in-line volume control ???? or not
Posted by: JohnApthorp
Date: February 09, 2012 06:00PM
Hi,
I also have a Garrett detector as well as my Minelab. What I did, was to cut the Garrett "headphone" plug off & replace it with a "normal" headphone plug. This now allows me to use the Garrett headphones which have a volume control on both ears, on my Minelab detectors. (As well as the Garrett detector through a home made adaptor.)
This setup works really well.

Hope this gives you some ideas.
Gary.

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Re: :help:Koss UR-30 with in-line volume control ???? or not
Posted by: Digger
Date: February 09, 2012 10:52PM
If you are talking about a limiter that reduces the sound universally, such as a variable resistor, then it would be similar to headphone volume controls. Limiting the sound between the time it leaves the detector electronics and when it gets to your ears is basically the same, whether you do it in the cord or at each earcup. There are, however, limiters that will only reduce the level of "spikes" or extra loud signals. And those are incorporated into many of the "specialized" detector headphones, such as my Gray Ghosts. Others, such as DetectorPro's Nugget Busters do not have the limiter. In fact, other than color, the only difference between the Original Gray Ghost and the Nugget Buster is that sound limiter.

As to raising the Threshold when lowering the volume.......remember, Threshold isn't a number. It is a level. And people could require different levels, depending on their hearing. My point in the earlier post was, if you are running your audio at full bore and hear the threshold at a 5, then when you put an inline limiter into the mix, or if you turn your headphone volume controls down, depending on how far you restrict the sound, you may have to raise the Threshold up in order to hear it. Honestly, I don't know as I've not tried it. But it makes sense to me that if you restrict the audio level to the headphone speaker output in an effort to reduce the volume, you are restricting all audio sounds that travel to those headphone speakers.

As to missing some targets with your volume lowered, I am convinced it will. That is why I run with full volume and use quality headphones with a sound limiter. If you hit upon a target with full volume,with what some refer to as a faint tone, it only makes sense to me that a lower volume level could reduce your chance of hearing it.

I have several sets of headphones. Those I use most are my Gray Ghost NDTs. Other than being extremely comfortable, blocking out most ambient noise, having a long coil cord and 90 degree plug, I prefer them for their dual volume controls and the fact they have a stereo/mono switch. This allows me to use them with any brand of detector. My backup set is the Original Gray Ghosts, which is basically like the NDT except is has a single volume control and doesn't come with a spare cord. I've had both sets for years and years. After about 4 years, the pads were getting hard and starting to check. I contacted Detector Pro and got a new set of pads for around $10. Good as new! JMHO HH Randy



You'll never know for sure......unless you dig it! HH "Digger"




After 40+ years of detecting, and having owned dozens of different detectors, I've come to the conclusion that maintaining success in the field is largely dependent on three things..... choice of site, acquiring a proper skill set for the detector and the detector itself..... in that order. Research, practice and persistence. There are no substitutes.



Edited 1 time(s). Last edit at 02/09/2012 10:54PM by Digger.

Re: :help:Koss UR-30 with in-line volume control ???? or not
Posted by: michaelosully
Date: February 12, 2012 06:16PM
Thank you Randy for taking the time to explain this to a tech challenged MD'er. I'll be doing some experimenting with my Koss headphones since I can pick up a in-line volume limiter for a small price...but long range, believe I will go with some high-end metal detecting headphones to make sure I'm not missing the faint tones of smaller, deeper targets. :detecting:HH

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Re: :help:Koss UR-30 with in-line volume control ???? or not
Posted by: pilot
Date: February 15, 2012 12:57PM
I use Avio wireless ear buds from Radio Shack and I love them. Only $60

HH
Kim

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