Koss

Koss Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Koss, Electronics, 4129 N Port Washington Rd, Milwaukee, WI.

Koss Stereo Headphones
Renowned for the invention of the world’s first SP/3 Stereophone, Koss has been pioneering hi-fi since 1958 - three generations of American ingenuity, integrity and incomparable quality.

A/550 just got even harder to resist. For a limited time, get the all-new A/550 for just $399, only at Koss.com ...
08/31/2026

A/550 just got even harder to resist. For a limited time, get the all-new A/550 for just $399, only at Koss.com

New Cushion Colors to Fall in Love With. 🍂All-new cushion colors are here for fall in Brown and Slate Gray, available to...
08/28/2026

New Cushion Colors to Fall in Love With. 🍂

All-new cushion colors are here for fall in Brown and Slate Gray, available today at Koss.com/Cushions

KPH40/Retro + Blue Koss Standard Cushions is a whole vibe 🔵🔵
08/28/2026

KPH40/Retro + Blue Koss Standard Cushions is a whole vibe 🔵🔵

Our new Factory Store at our world headquarters in Milwaukee, Wisconsin is now open!Come see the world’s first SP/3 Ster...
08/27/2026

Our new Factory Store at our world headquarters in Milwaukee, Wisconsin is now open!

Come see the world’s first SP/3 Stereophone, HV/1A, and more as well as shop our wide-range of Headphones, Headset and Accessories.

Open:
Mon-Thur 8:30am to 4:30pm
Fri 8:30am to 2:30pm

Rhythm Beige everything…
08/26/2026

Rhythm Beige everything…

08/25/2026

Easy to imitate. Impossible to replicate.

Only Koss can deliver over 65 years of unmatched clarity, detail and transparency in an ultra-lightweight design with REAL retro soul.

Shop Now: Koss.com/KPH40retro

Legends aren’t born… They’re made | A/550 is here with unmatched audio performance in a legendary design only Koss can d...
08/24/2026

Legends aren’t born… They’re made | A/550 is here with unmatched audio performance in a legendary design only Koss can deliver.

Orbital White | The all-new colorway for the legendary KPH30 Wireless that’s out of this world ⚪️🔴🔵
08/21/2026

Orbital White | The all-new colorway for the legendary KPH30 Wireless that’s out of this world ⚪️🔴🔵

Clearly, Legendary Sound. Explore the wide range of clear and transparent headphones from Koss - koss.com/clear-headphon...
08/21/2026

Clearly, Legendary Sound. Explore the wide range of clear and transparent headphones from Koss - koss.com/clear-headphones

Meet A/550 - The Next Chapter in the Sound of Koss
08/19/2026

Meet A/550 - The Next Chapter in the Sound of Koss

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4129 N Port Washington Rd
Milwaukee, WI
53209

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