The HD 620S is versatile enough to be the only headphones you need to buy, which will be an attractive proposition for many people, especially those just getting into the audiophile hobby. They’re comfortable, have a rich and satisfying sound, and the excellent passive noise isolation allows you to immerse yourself in your audio. I can safely recommend the HD 620S headphones, and I encourage you to try out a pair at your local audio store.

The Sennheiser HD 620S is a surprisingly good 'mid-fi' set of closed-back dynamic driver headphones and thoroughly belongs in the same class as the HD 600. You get closed-cup performance that sounds anything but, and a well-weighted neutral to natural tonal signature amenable to a wide range of amplifier pairings and not just something that will keep you strapped to the desk.

If you need a closed back headphone, you want it to sound open more than very precise and you don’t want to break the bank, the HD 620S is a headphone to put on your shortlist. Just make sure you amplify it correctly and you will enjoy its musical, v-shaped, bass heaver and smooth presentation.

If you love the airy and natural sound of a pair of open-back headphones but want to listen to music on the move or in places that aren’t as quiet as a dedicated listening room, the Sennheiser HD 620S are a superb choice. With all the laid-back and unforced sound of open headphones, but with all the isolation of a closed-back model, the HD 620S will serve up audiophile-quality sound wherever you are. The fit and feel of these relatively affordable headphones make them the ideal choice for wired listening with a headphone DAC or digital audio player. If you want high-quality sound on the move, the HD 620S offer value and quality in spades.

Sennheiser’s first closed-back HD 600 headphones do the range proud with their eminently relaxed, airy and easy-listening performance

Ultimately, the Sennheiser HD 620S, while on the pricey end, is a good buy. It’s a bassier, more mainstream take on the HD 600 series’ formula and one of the best that’s been attempted so far. It’s not the best at this price in any single area, but in this case, the sum of its parts makes up a well-rounded, enjoyable whole for a wide range of music and games. It’s definitely a headphone I will personally be coming back to because there isn’t another headphone that hits all of these notes as collectively well, and that’s a win for Sennheiser.

A closed-back take on a well-regarded pair of wired headphones. The Sennheiser HD 620S gets the tonality right, without skimping on bass presence – but it’s not perfect, and the styling doesn’t match other 600-series cans.