Sennheiser Electronics was founded in Germany in 1945. Sennheiser has earned a stellar reputation in the microphone and headphone industries. Multitudes of recording facilities and artists throughout the world use Sennheiser microphones, and the company has dramatically increased its reach within the high end audio industry with its ultra high fidelity headphones.

Notable Sennheiser products include:

Sennheiser HD 800 audiophile headphones
Sennheiser HD 205-II DJ headphones
Sennheiser PX 100

HomeTheaterReview.com's Sennheiser product reviews include:

Sennheiser PX 100 Headphones
Sennheiser Noiseguard PXC250 Headphones
Sennheiser HD 205-II DJ Headphones

Similar to Sennheiser are companies such as Stax, Ultrasone, Denon, Audio Technica, and Grado.