When we hear sound with no headphones the free air "shapes" the sound but with headphone the sound is fed directly to the ear. The shape of our head and ears is important in conjunction with our individual hearing. These are just some factors that explain why headphones sound different to people.
There are as we know the construction of the headphones that is very important. One area we need to examine is the frequency response which is the range of frequencies that the headphones can reproduce effectively. The audible bandwidth is up to about 20kHz). -low frequencies are more felt than heard which is also a consideration. Our metal detectors uses tone id so we are very interested in those high frequencies more so than the low. I think the Koss are stock as they have a more mellow sound but may not have the high frequency response I like but I do have high frequency hearing loss problems which may account for that. I had no intentions of promoting or knocking any particular brand with my post. I would try several different ones as the above consideration do make a difference.
We often read of the resistance of headphone but actually we are interested in Impedance which is the resistance, capacitance, and inductance expressed in ohms. Impedance is how these parameters respond to changing signals while just ohms is how resistance responds to a DC signal. Many headphone have impedances of less than 100 ohms. The better models are rated at at least 150 ohms or more to minimize loading effects on the detectors audio electronics.
The physical construction of the "speaker" of the headphone can be very different from fairly cheap to quiet expensive which also makes a difference. Features are important such as volume controls, tone adjustments, fit, all add up to a good sound.
Which ones to use depends on the user. I have some in the shop that if I switch from the ones I current use to them and don't change any setting I cannot hear the threshold. The sensitivity is so poor that I have to increase the threshold up several clicks to again hear it. Also, on air test if a coin is vertical, I stick coin in clay to measure this, I can hear the little high frequency wisp of a sound but change earphones and nothing.
If we look at an audiogram of our hearing we see why it is important to select headphones based on our hearing. I suspect the Koss are a good general purpose headphone. I have used some in the past that were great. I however hear more of a low mellow tone with the stock Koss and will miss the high faint sounds. Again, I have high frequency loss which may explain that. I honestly think the bottom line is not the headphones but the ones that are best for the individual for all the reasons posted.
There are as we know the construction of the headphones that is very important. One area we need to examine is the frequency response which is the range of frequencies that the headphones can reproduce effectively. The audible bandwidth is up to about 20kHz). -low frequencies are more felt than heard which is also a consideration. Our metal detectors uses tone id so we are very interested in those high frequencies more so than the low. I think the Koss are stock as they have a more mellow sound but may not have the high frequency response I like but I do have high frequency hearing loss problems which may account for that. I had no intentions of promoting or knocking any particular brand with my post. I would try several different ones as the above consideration do make a difference.
We often read of the resistance of headphone but actually we are interested in Impedance which is the resistance, capacitance, and inductance expressed in ohms. Impedance is how these parameters respond to changing signals while just ohms is how resistance responds to a DC signal. Many headphone have impedances of less than 100 ohms. The better models are rated at at least 150 ohms or more to minimize loading effects on the detectors audio electronics.
The physical construction of the "speaker" of the headphone can be very different from fairly cheap to quiet expensive which also makes a difference. Features are important such as volume controls, tone adjustments, fit, all add up to a good sound.
Which ones to use depends on the user. I have some in the shop that if I switch from the ones I current use to them and don't change any setting I cannot hear the threshold. The sensitivity is so poor that I have to increase the threshold up several clicks to again hear it. Also, on air test if a coin is vertical, I stick coin in clay to measure this, I can hear the little high frequency wisp of a sound but change earphones and nothing.
If we look at an audiogram of our hearing we see why it is important to select headphones based on our hearing. I suspect the Koss are a good general purpose headphone. I have used some in the past that were great. I however hear more of a low mellow tone with the stock Koss and will miss the high faint sounds. Again, I have high frequency loss which may explain that. I honestly think the bottom line is not the headphones but the ones that are best for the individual for all the reasons posted.