xluben
500+ Head-Fier
- Joined
- Jan 4, 2005
- Posts
- 940
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- 10
A few weeks ago my mom showed me the headphones she used in the 70's. They were the Koss Pro/4AA's. I didn't know much about them, but after looking around on the Kos website I found out they started selling them again a few years ago, and that they are covered by Koss' lifetime warranty! My mom's headphones had flattened pads (gel filled pads), ripped off headband pad, recabled (but non-functional). I figured I would at least try out the Koss warranty to get a functional pair of $100 headphones.
After reading some reviews on Amazon.com, which stated that Koss had repaired 20+ year old Pro/4AA's under their lifetime warranty. I sent them in with a check to cover the return shipping, and hoped I heard back from them.
A week or two later there was a package at my house. I opened it to find that Koss had indeed repaired them, and they looked great. They replaced the earpads, headband pad, all cables and the left side earcup. The invoice did not say they replaced the drivers, so I assume they still are using the 25+ year old drivers.
Here's a couple pictures of them:
Left Side
Right Side
You can sort of tell that the left side earcup is slightly darker than the right side. They look very good, and it was all covered under warranty.
Since they use the 1/4" plug I had to find a 1/8" adapter. After I found one, I plugged them into my Pocket Amp 2 V2, which was plugged into my iPod. They sound very clear and pretty well balanced. If I push the earcups against my ears they become pretty bassy, but with normal wearing they sound quite flat. They are not very loud, and if I turn up the Pocket Amp past about 50% it starts to distort. Straight out of the iPod they're not very loud even with the volume all the way up.
My main complaint about these headphones is their extreme weight. This causes the headband to get somewhat uncomfortable (for me) after a pretty short period of time.
Overall, I think they're a good sounding headphone (with plenty of isolation), but comfort issues would stop me from using them very often. And Koss' warranty is GREAT!!!!
After reading some reviews on Amazon.com, which stated that Koss had repaired 20+ year old Pro/4AA's under their lifetime warranty. I sent them in with a check to cover the return shipping, and hoped I heard back from them.
A week or two later there was a package at my house. I opened it to find that Koss had indeed repaired them, and they looked great. They replaced the earpads, headband pad, all cables and the left side earcup. The invoice did not say they replaced the drivers, so I assume they still are using the 25+ year old drivers.
Here's a couple pictures of them:
Left Side
Right Side
You can sort of tell that the left side earcup is slightly darker than the right side. They look very good, and it was all covered under warranty.
Since they use the 1/4" plug I had to find a 1/8" adapter. After I found one, I plugged them into my Pocket Amp 2 V2, which was plugged into my iPod. They sound very clear and pretty well balanced. If I push the earcups against my ears they become pretty bassy, but with normal wearing they sound quite flat. They are not very loud, and if I turn up the Pocket Amp past about 50% it starts to distort. Straight out of the iPod they're not very loud even with the volume all the way up.
My main complaint about these headphones is their extreme weight. This causes the headband to get somewhat uncomfortable (for me) after a pretty short period of time.
Overall, I think they're a good sounding headphone (with plenty of isolation), but comfort issues would stop me from using them very often. And Koss' warranty is GREAT!!!!
