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KOSS PRO 4AA Review (Headphone)

So my pair is not even working. I dug them out, cables, plugs, and after well over an hour trying to fix them, NOTHING!!
Gave up and threw them away finally.

Found my brother STILL has an original pair AND some Radio shack clone of them. The Radio Shack one has different volume controls its called Pro-1.

Will listen to his pairs in the next few days as he says they BOTH work flawlessly still somehow!!
Okay, you've chucked them, but don't Koss repair these (not sure if it's for nothing or modest charge)? They're still a mid 70's domestic classic, if not an especially well performing one. Another that is still made in significantly altered form but still a classic (especially to Cybermen fans) is the Jeklin Float which we had before Stax took that mantle over.
 
These things are why the Sennheiser HD 414's sold so well beginning in about 1973. They were a quantum leap in good sound from the standard US made closed back headphones then available. Even with 600 ohms impedance, as most receiver or integrated amps put out enough power to power them quite nicely.
My impression of HD 414s will forever be etched in my memory by the image of attractive young women smiling as they listened to them for the first time.
 
Had Pro4AA in hi skool and college. Late 70's early 80's. College radio DJ same time period. For the most part that's all there was. Pro4AAA were the next evolution. I remember buying my dad a pair of Senn light weight headphones with yellow foam pads and our Lafayette Radio gear wouldn't drive them. Impedance mis match. Recorded local bands on an Akai cassette deck using AA's to monitor.
 
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