Skip to main content

Digital Trends may earn a commission when you buy through links on our site. Why trust us?

Sennheiser’s HD 620S closed-back cans have an open-back soul

Sennheiser HD 620S closed-back headphones.

Sennheiser has a new set of wired audiophile headphones, and while they may look a lot like the brand’s famous open-back cans, the HD 620S are completely enclosed. They can be preordered starting May 7 for $350, with shipping beginning on June 6.

The HD 620S are something of a departure for Sennheiser, which has traditionally stuck with open-back headphone designs. The move was prompted by customer feedback, according to the company. “The hi-fi community has clamored for a headphone with the best traits from our 600 series,” said Jermo Koehnke, audiophile product manager, “yet isolates them from distractions at work, home, or in-between.”

Sennheiser HD 620S closed-back headphones.

The HD 620S is an attempt at doing just that: preserving the airy sense of openness and natural sound that have been the hallmarks of Sennheiser’s open-backs, while bringing in the sound-isolating properties of a traditional closed-back design.

Sennheiser HD 620S closed-back headphones.

The cans use a custom-tuned 42mm dynamic transducer mounted within an angled baffle. This apparently encourages the free movement of air, mimicking the behavior of open-back transducers, “while recreating the triangular imaging of a great loudspeaker setup in an expertly tuned room,” Sennheiser claims.

The chassis bears a strong resemblance to the HD 560S and HD 569, with a smooth, integrated headband and generous ear cushions. The big difference are the metal shells that form the outside of the earcups. They aren’t just for looks — Sennheiser claims they’re also efficient isolators that manage any internal reflections that could otherwise cloud the purity of the acoustic signal.

Sennheiser HD 620S closed-back headphones.

The HD 620S have an impedance of 150 ohms, which should be easily drive by most integrated amplifiers. They come with a storage pouch and 6-foot, single-sided, detachable, twist-lock 3.5mm cable, but you’ll also be able to buy a 4.4mm balanced cable this summer for those with DAC/amps that sport this increasingly popular connection.

Editors' Recommendations

Simon Cohen
Simon Cohen covers a variety of consumer technologies, but has a special interest in audio and video products, like spatial…
LG updates its Tone Free earbuds with ‘pure graphene’ drivers
LG Tone Free T90S.

LG's new Tone Free T90S are the latest wireless earbuds from the Korean juggernaut, and they pick up right where 2022's Tone Free T90Q left off. In other words, they maintain the T90Q's massive set of features and then layer on some new tricks, like hi-res Dolby audio and a new driver made from pure graphene. The T90S are set to be released later in May, however, LG hasn't announced pricing yet. Given that the T90Q debuted at $230, it's a good bet the T90S will be in the same neighborhood.

So what is "pure graphene" and why should we care if our earbuds have drivers made out of it? Most graphene drivers are simply coated in the super material, according to LG's press release. "The use of pure graphene in LG’s latest earbuds reduces vibrations and allows users to revel in well-balanced and precise sound, with powerful bass and enhanced mid- and high-range frequencies." Translation: LG feels the T90S will sound better thanks to pure graphene.

Read more
Crazy! Save a massive $1,000 on this TCL 98-inch 4K TV right now
The TCL 98-inch S5 4K TV on a white background.

If you’re looking for a huge TV but you still want to save plenty of money, you need one of the TV deals going on at Best Buy today. Over there you can buy a TCL 98-inch S5 4K TV for $2,000 instead of $3,000. The $1,000 saving makes this TV much more affordable for many people, and we’re still in awe that you can even buy a 98-inch TV for $2,000. If you’re intrigued, keep reading and we’ll tell you all about what the TV has to offer.

Why you should buy the TCL 98-inch S5 4K TV
TCL is one of the best TV brands for value which explains why this TV is so well-priced. A great price, it still packs in tons of similar great features. Besides its huge 98-inch display, it has a high brightness direct LED backlight which produces brighter images and an enhanced viewing experience. It also supports the HDR Ultra package of Dolby Vision IQ, HDR10+, HDR10, and HLG.

Read more
Best Buy just discounted this 65-inch Samsung 4K TV to $400
The Samsung 75-inch LED 4K Smart TV on a media cabinet.

If you want a reliable 4K TV that’s just the right size for your living room, check out the TV deals going on at Best Buy right now. Today, you can buy a Samsung 65-inch TU690T 4K TV for just $400. It normally costs $480, so you’re saving $80 on a TV that is already a great value. If you need a new inexpensive TV for your home but you want something from a reliable brand, this is your chance. Here’s everything else you need to know about it.

Why you should buy the Samsung 65-inch TU690T 4K TV
From one of the best TV brands, the Samsung 65-inch TU690T 4K TV is an ideal TV to enjoy plenty of benefits without breaking the bank. It has a great 4K picture with a PurColor Crystal Display which provides fine-tuned colors how they’re meant to be seen. It’s also Direct Lit so that blacks and whites are fine-tuned for enhanced contrast and there’s HDR for a wide spectrum of colors and visual details.

Read more