A benchmark in sound quality.

Sennheiser claims to be “redefining the limits of audio sound” with its HD 820 closed-back dynamic stereo headphones that were showcased at CES. The headphones are said to deliver transparent sound, thanks to a unique glass transducer cover that minimises resonances and ensures a natural sound field, according to the company.

The headphones feature a robust metal headband with an inner damping element, and silver-cladded OFC cables and gold-plated plugs. Ear pads have been handcrafted from non-allergic synthetic leather and microfiber to cushion and insulate the listener from ambient noise.

“Usually, high-end head phones require an open-back design, which has placed limits on where you can enjoy true audiophile sound,” portfolio management consumer at Sennheiser, Axel Grell said. “The HD 820 is a game-changer that delivers exceptional sound while insulating the listener from their environment.”

Sennheiser’s new CX 6.00BT headphones also made their debut at CES and feature ear-canal earbuds for clear, detailed sound with an enhanced bass response that includes Bluetooth 4.4 and Qualcomm apt-X for enhanced video and gaming viewing. The multi-connection capability enables pairing with up to two devices simultaneously, for example when switching between a smartphone and computer. It has six hours of battery life with fast charging via USB that can add two hours of battery time in 10 minutes and a full charge in 1.5 hours.

Visitors to CES were also given a first look at a prototype of a 3D soundbar, the latest development in the audio specialist’s Ambeo 3D program that offers an immersive audio experience with a “true-as-if-there” feeling without any additional components such as an external subwoofer.