Verdict
Sennheiser eschews the distinctive open - back pattern for reference headphones with the closed - back HD 620S , allowing for a small amount of sound closing off against the remote world . They wo n’t do much on a noisy commute , but the HD 620S headphones offer a little protection for listeners who do n’t have a soundproof room at home .
Pros
Cons
Key Features
Introduction
Who are the Sennheiser HD 620S headphones for ? As wired , extension earpiece , they ’re designed to cater to listeners after a high - faithfulness audio experience , without the compact information or over - the - air interference of Bluetooth connections .
On the other paw , while reference headphone typically use an open - back pattern for a wide soundstage , and the feeling of speech sound travel freely around you , the HD 620S stick around to a closed - back design , which limits the soundstage but also allows for a modicum of protection against outside noise .
There ’s no combat-ready stochasticity cancellation here , and listeners after that should look at our guide to thebest ANC headphones . The HD 620S instead do as a halfway mansion between real audiophiles and those after a turn of practicality in their audio hardware , offer gamy quality sound with some introductory profound closing off . For some , it may be a arrant via media .
Design
The Sennheiser HD 620S earphone are design for sound , and not much else . There are no build - in buttons or touch controls , with all playback and volume adjustment coming from your reservoir gimmick ( exclusively over a pumped-up connection ) . The cable is 1.8 m long , with a 3.5 mm connection as well as a large 6.3 mm adaptor you’re able to practice to connect to amps and professional admixture desks .
At 670 gee , the HD 620S has a decent heft , but is lightheaded enough to wear out for long hearing sessions , thanks to solid cushioning on the ear cup . The headband is made of a rigid metal with adjustable length on either side of your head , keeping the headphones stiffly in place where you require them .
The headphones ’ case is made of black plastic , with lightsome pockmarks along the auricle cup , which give a thin grip when taking them on or off . A dim-witted cloth bag ( included ) serve to keep the phone protected from dust , though not from any smash if you take them outside .
Specification
This will be nimble ! These wired phone outsource any playback to your seed equipment , mean there are no button or touch controls to speak of , and even the prescribed Sennheiser Control app does n’t sync up with the hardware – there ’s little room for EQ adjustment for headphones that are intend for audio faithfulness over anything else . ( However , it ’s potential to employ third - company EQ computer software if you like . )
likewise , there are no battery lifetime concern , .
The main feature here is the uncompressed sound you ’ll get over a consistent wired connection , which will be enough for some .
Sound Quality
For the HD 620S earphone , Sennheiser drew on year of experience establish its unresolved - back 500 and 600 reach , this time with a unsympathetic - back limitation . But the sound experience is still so impactful , grand , and detail - full-bodied that it ’s easy to forget you ’re not wearing open - back headphones .
I was mostly impressed with the drivers ’ simpleness , with tight , control notes even at gamey loudness , and an incredible detachment between instruments during classical listening sessions . But even the overlapping voices of modern pop caterpillar track carry off to push into audibility without commingle or muddying each other .
There ’s a veridical sense of sound move around you in three - dimensional infinite , despite these being two-channel phone ( without Dolby Atmos or any spatial audio frequency formats ) . Sennheiser credits the angled baffle behind the 42 mm transducer , saying that it “ reanimate the triangular imaging of a gravid loudspeaker setup ” , point sound and keeping a firm hand on undesirable vibration .
No doubt an open back design would gallop the soundstage further , but the HD 620S is still a tenacious way away from the cocoon of most ANC earphone , which seek to shut out the away world alone .
You ’d get a wide 12Hz – 41kHz frequency reply and eminent 300 Ohm resistance with the Sennheiser HD 650 , a step - up open - back simulation , but the HD 620S capably range smooth reference audio recording with some of the everyday practicality of at - rest home hearing .
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Should you buy it?
The Sennheiser HD620S bid detailed , accurate auditory sensation , with just enough isolation to keep out pocket-size irritations and buffer harsh sounds .
The lack of Bluetooth support , active noise cancellation , saucy assistants , pinch controls , or even app connectivity mean this is a relatively analog experience .
Final Thoughts
The Sennheiser HD 620S headphones are an first-class , practical option for at - home auditor , with the staple of sound isolation to ensure you could centre without modest distraction .
Anyone bang-up on modernistic smart features like feeling controls or wireless connectivity are easily serve elsewhere , but for a pair of feature film - easy , sound - focussed character reference headphones that make a strong case for shut - back hardware , the Sennheiser HD 620S are a great place to start .
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How we test
We examine every set of earphone we review thoroughly over an lengthy period of time . We use industry standard tests to compare features properly . We ’ll always tell you what we find . We never , ever , accept money to review a product .
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FAQs
You get a 3.5 millimeter cable as well as a 6.3 millimeter adapter .
