Frequently Asked Questions

Find answers to common questions about our high-fidelity audio gear

What is the difference between open-back and closed-back headphones?

Open-back headphones provide a wider soundstage and more natural audio reproduction, while closed-back headphones offer superior noise isolation and prevent sound leakage.

Are replacement ear cushions available for my Koss stereophones?

Yes, we offer a wide range of replacement cushions and accessories to ensure your headphones remain comfortable and functional for years to come.

Do these headphones require an external amplifier?

While most of our models are optimized for mobile devices and laptops, our high-impedance audiophile sets benefit significantly from a dedicated headphone amplifier.

How do I register my product for the Limited Lifetime Warranty?

You can register your product on our website under the 'Warranty' section by providing your proof of purchase and serial number.

Are Koss headphones compatible with both iOS and Android?

Yes, our headphones use standard 3.5mm jacks or Bluetooth connectivity, making them compatible with virtually all modern smartphones and tablets.

How should I clean and maintain my stereophones?

We recommend wiping the headband and earcups with a slightly damp, lint-free cloth. Avoid using harsh chemicals or submerging the electronics in water.