Show us your vintage headphones!
Mar 2, 2023 at 9:46 AM Post #2,971 of 3,072
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Mar 11, 2023 at 9:09 AM Post #2,972 of 3,072
Koss (InterFunk) HV/99 - most likely an HV/2A OEM.
But has HA/1A headband.

InterFunk was a German/Swiss distributer of sometimes re-branded products.
HV/99 seems to be HV/2A cups/drivers + HV/1A headband + InterFunk branding.

DIY memory foam pads added by me... they sound FILTHY...
...less dense (stock) foam required for more neutral sound... this is too much bass, but also fun in it's own way.
Koss HV99 Memory Foam Pads.jpg


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Apr 12, 2023 at 8:16 AM Post #2,978 of 3,072
AT somehow made a basshead electret lol
I wonder, was it 'basshead' before or after the ear pads exploded?

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Sometimes, when the foam is exposed like this, it can create a 'bass trap' kind of effect.
Similar to how some Beyerdynamic and Shure ear pads work.
 
Apr 17, 2023 at 1:36 PM Post #2,982 of 3,072
K340... so very mediocre.

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AKG K340.jpg
 
May 3, 2023 at 6:10 PM Post #2,985 of 3,072
K340... so very mediocre.



My favorite headphone. The K340 Rocks!
I don't need a graph to tell me just how great this headphone sounds.
If you spend some time with the green driver model, you may think very differently about it.

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