HIFIMANSUNDARA Planar Magnetic Over Ear Hi-Fi Headphones

There's nothing else quite like the HiFiMAN Sundara for £300 or less. Planar magnetic headphones are still a relatively rare choice of driver for headphones with only a few companies attempting to make them. HiFiMAN is not only unusual as a company for making planar headphones, it specialises in them.Planar magnetic headphones are essentially a thin sound producing diaphragm stuck between two rows of magnets. The diaphragm is suspended in the air between the two rows and produces sound from the fluctuations in the magnetic field as current is passed through the magnets. Planars specialise in reproducing fine detail from a recording for relatively little effort. At least, in theory. In practice, with a solid enough design, traditional dynamic driver headphones and planars can and do trade blows in fidelity on a regular basis. What is true for sure though is that planars have a totally different character to their sound than dynamic drivers - planars have a habit of throwing that fine detail they can retrieve in your face whether you're listening out for it or not.The Sundara model currently being sold on Amazon appears to be the July 2022 revision or newer. The Sundara was originally released in 2017 and has been modified several times since then, but this review will focus on the version I received. If you have an earlier version of the Sundara and want to update the headphone, all you need to do is replace the earpads with the latest revision as that is the only build change.The version I received came with the redesigned and much more modest cardboard boxes with foam inserts instead of the more elaborate display cases of earlier versions. The foam insert in the box includes a removeable piece that functions as a free headphone stand if that takes your fancy. It barely weighs anything so it's a little difficult to keep in one place on a desk. You also will receive a complementary dual 3.5mm to 3.5mm headphone cable and a 3.5mm to 6.5mm jack adapter. I had no problems with this cable, but this is easily replaced with aftermarket cables if it's not to your liking. The Sundara supports balanced audio input, and I recommend using it this way if you're able to do so.Unlike most of HiFiMAN's more expensive offerings, the Sundara uses their older round earcup design. It's quite snug on the ears and takes a little getting used to, but you should soon forget you have it on your head after a while. The headband is a simple metal band with a faux leather support band designed to even out the pressure on your head. In my experience this design is quite effective and comfortable, even if it feels a bit cheap. It's clear the budget is going mostly to the actual headphone drivers themselves, and I'm fine with this tradeoff.HiFiMAN has a house sound that all their headphones broadly adhere to like most headphone companies do. The sound signature is bright-leaning - the treble (3 - 10KHz) and air (10 - 20KHz) regions are emphasised slightly more than in a completely flat frequency response - and there is also a significant dip between 1000 and 3000Hz which further emphasises the treble and air regions. These regions contribute the most to a sense of detail and precision in what you hear, so this house sound is likely designed to highlight the planar's favourite party trick. Bass is audible but rolled-off - you can hear it all the way down to the lower audible limit of 20Hz but it's quieter than it should be in a flat response. If you are used to bassy headphones or a typically tuned car stereo, this will come as a shock at first, as this is the inverse tuning of what you're used to. Overall though, while there is light emphasis and de-emphasis in places, the sound signature is mostly neutral, not drawing specific attention to any region and giving every section of your music and audio equal attention in the presentation. As the cliché goes, you'll hear things in your music that were always there but that you never noticed before, over and over again. If you end up dissatisfied with the way they sound, they respond extremely well to EQ, so you can fill in and/or boost the bass and eliminate the 1-3KHz dip if you so wish. In other words, these are audiophile-grade reference tuned headphones with significantly better detail retrieval than the average.If you're unfamiliar with what makes a headphone or speaker audiophile-grade, it can be described as what was originally recorded and mastered is what you hear played back. If you're listening to a recording with a violin way off at the back of the room, an acoustic guitar right next to the recording mic and a cello slightly off to the side, on an audiophile headphone you will hear an acoustic guitar right in front of you, a violin that sounds very far away, and a cello slightly off to the side. This sense of a space instruments are playing in and how big it is is referred to as the soundstage and being able to precisely locate where the instruments are playing in the room is referred to as the imaging. If you wish to watch movies with surround sound or game on these headphones, the imaging and soundstage become much more important. Headphones can use binaural audio playback to mimic (or exceed!) surround sound in movies and games while still using a stereo signal.By audiophile headphone standards though, the Sundaras are nothing special in either imaging or soundstage. That is not to say they are bad - they will blow your socks off still if you're coming from mainstream audio but they do not particularly excel in either category - they are simply good enough for the job on both the vertical and horizontal axis, and that will probably be enough for most people.There is one caveat to this, however. You will probably get better imaging performance out of a HiFiMAN headphone at any price point if you feed it with a "dual-mono" source. This is a form of audio reproduction that keeps the left and right channels completely separate - the channels use separate amp circuits and never have any chance to mix by mistake at any point in the chain. If you do not do this, you may experience a "deadzone" of sorts in the centre image, where sound lightly panned less than ~15 degrees in either direction is artificially snapped to the centre channel at 0 degrees. This can subjectively make music sound more coherent in the centre but could be quite disorienting when gaming. The iFi Zen DAC v2 and the FiiO K7 are both dual-mono amps and you need to use the balanced 4.4mm connection on these amps to keep the channels truly separated, which will require a specialised aftermarket cable that you can find right here on Amazon.I said there's nothing else quite like the HiFiMAN Sundara for £300 or less. That's because there is no other headphone on the market that is this close to the complete package with the planar sound signature that doesn't cost more money. If you just want to buy one audiophile headphone and get it over and done with, this is the one to buy. If however you like the planar sound but want a headphone with exceptional soundstage and imaging, not merely adequate and dead-flat bass extension without the rolloff, consider extending your budget to £500 and looking at the HiFiMAN Edition XS.

Having started with full seperates and still have also, my first set of headphones were Grado SR60 and at the time was very impressed with what headphones could do. Some years later moved up to Grado SR32e. Loved the detail. A tiny bit bass light but not terrible, and the odd moments of a shrill treble that beng blunt coud make you cringe, though different pads helped here, but all in all had heard several others through the yeas. My ex partner has the Grado Blutooth open back headphones, and very similar to the SR60's in tonality and detail but very very impressed what Grado achieved all through aptx lossy bluetooth, also with the opyion to wire them in. Had an extended home trial of a pair of Audeze LCD-1 and while ok, wasn't particulalry seeing the fuss over them. Balanced and neutral but to the point of boredom.These arrived today and read a good 20 hours run in before they really shine. Well if that's the case then all I can say is roll on that 20 hours because I haver never heard such a balanced unflapable perefctly detailed set of headphones with timing that has made all listeming sessions before feel I've not been hearing these tracks as they should sound. The timing is in my opinion what makes these so addictve.Excellent treble that runing through my Dragonfly Cobolt never at any time has peaked to being uncomfortable. Almost as if they have been tuned to reach the perfect limit to shine but not be too bright. Creating an atmospher taking the sound way beyond your ears. A midrange just sitting as in place beside the bass as the treble to both creating a cohesive sound where nothing needs to compete to be heard. Nothing jumps out at you but you hear every detail present.Having been in Hifi as sales, advisor, and owner for around 30 years, owning high end sepeartes of many kinds, I can honestly say nothing has put a smile on my face so quickly and removed any doubts that I made a great choice as these have.On ending, if you're a bass head, or someone who prefers you music to be in your face that it is exciting maybe but unbalnced and not natural then these may not be for you. These can rock and push out beats and anything you thow at them, be certain of that, but also be clear if you want a very natural clear sound, full of detail, with impecable timing, and very controlled bass that does not try to dominate but is more than enough, and to top it off, exceptionally comfortable for my head the minute I put them on I could wear these for hours no problem, then don't hesitate.I can only add that I am amazed that for this price I have probably the best end line producer of music I have ever owned. Cant praise them enough.