I have decided to hold off on getting the KSC75s for the time being.   Partly because the Koss headphones I want to "revamp" with the drivers don't seem to buzz all the time. So, buying new headphones just to swap the drivers seems a bit much.   I am thinking of getting a pair of KTX-Pros at...

That would be something to consider if my Zune stops working but, right now I am not looking for a new player. besides, I like the features of my Zune.   My Zune can drive my Sony headphones. if I want to have it at full volume. But doing that shortens the time before it needs to be...

I don't typically listen at high volume....not these days anyway.   But, for the last few decades it has been hard to find a personal stereo that has decent volume. I find that you need to turn the volume higher to get the same amount of loudness that personal stereos from earlier would get...

How much boost do you get from the E12?   I have been eyeing in for some time. I currently use three headphone amps chained together to get a decent volume boost when using my Zune mp3 player.   I hate that companies have taken it upon themselves to "protect" MY hearing!   With the three...

I just looked up some video about the KTX Pro.   The videos help give me a better idea of their size. In photos it looks like the ear cups are not much bigger than the drivers themselves.   It looks as if the cups are at least a quarter inch larger than the driver, The Mac-5 design is is...

  To say "enclosure" with many of these models is not quite accurate. The ear-clip models and the PortaPro/SportaPro the drivers are not  enclosed at all. They just snap onto the ear-slips or headband. The headbands cover the backside of the driver but they are open other than that.   Now...

On the plus side looking up the KSC35 I noticed they had a great side view of the driver so I  checked the Koss page for the KSC75 to see if they showed it the same way. It appears that the round back of the KSC75 is not as rounded as it seems in many of the photos and videos....at least based...

Same driver as the PortaPro and the only real difference between them and the KSC75 is the KSC75 has the titanium coated diaphragm. Well that and they are slightly  flatter than the KSC75.   There is a video review on Youtube talking about the three and the guy says he prefers the KSC35 over...

The KSC35 is available directly from the Koss website. It is ridiculously expensive. You could buy a pair of PortaPros and a KSC75 and pop the drivers off the PortaPro headband put the KSC75 clips on them and have the same thing plus you could put the KSC 75 drivers on the PortaPro band and...

  I totally understand about being picky. I mean, look at how I am about deciding whether or not to spend the money on the KSC75's! And I will only need to pay like $6.95!   It's like the KSC35 costing around $45 and the only place to buy them is directly from Koss yet they are just ear-clip...

The way I was understanding things it didn't matter if they repaired them or replaced them.   And, it isn't hard to believe as some companies will charge for such things. When you have so many people saying different things about how it works it makes it easier to make the choice to replace...

  A lot of the posts I saw talking about the repair service said that you have to pay the return postage as well as shipping them there (not all were on this site). I mean I don't think many people would argue paying to ship them there. It's that return postage that makes it ominous.   Of...

Yeah Koss says they would repair or replace them. But, I am looking at it from a cost perspective. It would cost more to send the old ones to Koss than to get the KSC75's since I would only need to pay shipping from Amazon.   As I understand it, you have to pay the return shipping as well. If...

Slight differences are fine. The truth is it is possible for 2 of the same model of headphone to not sound exactly the same.   Since I am swapping both sides it won't really matter if there is a difference between the new and the old.   Now, if I were going to replace JUST the one that is...

Please keep in mind that my initial post was asking about the PHYSICAL properties of the KSC75 driver (thickness, width, etc.) compared to the PortaPro driver.   I have already seen various info and opinions on the differences of how they sound.   I understand that others would just get a...