Bump! – The Best Headphones on the Planet

I’ve been wearing the American made Koss Pro-4AA headphones since 1977.  I carry them in my equipment bag, they’re built strong to take the abuse we toss around in the studio.  They sound great and come with a lifetime warranty.  The wires can get stripped, ear pads deflated and worn out over time.  To redeem your warranty, simply box up your...

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