Hello there.
I got my ES LAB R-10 a few days ago and I have been enjoying them since. My unit is n.25. When I ordered my ES R-10 I did not find any info online except the Chinese sites linked in the manufacturer website. Now I found this thread, which is only 5 days old as of this writing, i.e. it did not exist when I ordered my unit. I think these headphones are very good and they deserve to be known. This is my small contribution. I have been taking notes of my listening sessions and I wrote this mini-review.
I bought my ES R-10 by an impulse. I wanted to know how good they can sound. The Sony MDR R-10 is the stuff the myths are made of. Very hard to find today and at stratospheric, unreasonable prices (IMHO). This is a headphone that was the pinnacle of the industry 30 years ago. During these years many innovative products are come out. How good can a replica of a 30 years-old headphone can sound today? Pretty good I would say.
Disclaimer: I never heard the original Sony R-10 and I cannot compare them. I normally listen electrostatics and I have been away of dynamic phones for years. I have some TOLT electrostatics, this is the baseline for my comparisons. I listen mostly but not only classical and acoustic jazz. I go to 30-40 live concerts per year and I benchmark my listening experience home with what I hear in the concert hall. I value most the right timbre of the instruments and I do not need a lot of bass.
LOOKS
ES R-10 manufacture looks nice. It is a handcrafted product, I mean it in the good sense, you can see it was assembled by hand.
On first sight, the ES R-10 looks almost identical to the original Sony R-10: the wooden cups, the headband; the leather earpads look good, feel good and smell good. It is a good replica. But when looking in more detail, there are some differences with the original Sony R-10. There are more screws securing the inner part of the headband, there is also an extra screw in the arcs that hold the cups. Worse, some finishing details are disappointing: the serial number is a simple sticker, some screws are not levered to the surface of the metal. Some manufacture details can be improved but all in all it is fine.
The cable is detachable. This is different, and better, than the original R-10 cable. The cable very thick and I wish it was more flexible (I am spoiled by Stax flat, flexible cables). A separate balanced cable can be purchased at an extra price. I might get one.
It is very beautiful to watch. The wooden cups are a beauty. Very comfortable on your head. The headband does not hold the pads too tight to your ears but secure enough if you do not do strange head movements while listening. You can wear them for hours without fatigue.
The cans come in a wooden box not like the original Sony MDR R-10 suitcase but more like the Stax Omega (the first ES Lab electrostatic headphone is inspired in the Omega and has a similar wooden box). It is OK for me, in particular considered the price.
SOUND
Sound is natural, balanced, refined, rich, organic. Very transparent albeit not as much as a TOLT electrostatic. Soundstage is excellent, very realistic image separation for a headphone (i.e. similar to speakers), almost as good but not fully as my favourite in this regard: the Stax Sigma. More realistic than the HD800, which IMHO is too wide to sound real (it does not sound as if you stand in front of the musicians but ‘floating’ among them)
Good, textured bass. It does not lack bass but it has no bottomless bass. The bass blends with the other frequencies and does not dominate. It is good enough for me. Fine for acoustic and orchestral music, I do not miss any bass there compared to my experience in live concerts. The bass is fine for me also with other types of music [Queen (‘Greatest Hits’), Carlos Santana (‘Corazón’), Vinicius Cantuaria (‘Lágrimas Mexicanas’)]. However this is no bass-head as Audeze LCD2. Il will not satisfy everyone and for every type of music. Certainly not for music that rides with the bass.
Mids are sweet and nice. Strings and voices shine. King here. You can tell the resonances inside the wooden cups are doing their magic. This headphones are not without colorations but they are very enjoyable. [Céline McLorin Salvant (‘The window’), Marais (‘Pour la viole et le there’, Hille Perl), Bach (‘Sei solo’, Leonidas Kavakos)]
Treble is quite natural, not as realistic as electrostatics, but close. Cymbals, xylophones and other percussion instruments sound quite real but not as much as with Stax SR-009. On the other hand, the treble is enjoyable and no piercing harsh as the HD800. Natural-sounding is the word, close to the experience in a live concert but not super revealing. Aromates (‘Rayon de lune’)]
Timbre instruments. Not as great as electrostatics but better than any other dynamic phones I have heard.
Resolving power. The ensemble is integrated naturally, everything is in place in right way. It does good job at revealing the instruments voices and textures (with the right amp it can do an excellent job). However in complex classical orchestral passages it does not separate all the layers as sirurgical as Stax SR-007 or 009. [John Williams (‘The Berlin concert’)]
Combination with amplifier. The headphones reveal very nicely the personality of your amp., i.e. they sound different according to the amp you use. I like that, it is fun. I compared mainly two amps. One is the Headamp GS-X mk2. This is a powerful, very neutral and transparent solid state amp. A wire with gain. Excellent combo with these headphones. I also l listened with the Leben CS300XS. This is tube amplifier. It is a sweet, coloured, fat-bass amp lovely to listen and to watch. With the ES R-10 the sound you get is quite different: the treble is not as good as with a SS amplifier. The music is more mellow and engaging and you get a bit more of bass from the tubes (depending on the tubes you use). With the Leben, the sound much closer and intimate [Buena vista social club]. Perhaps the R-10 is coloured enough by itself that you do not need the amp’s tubes on the top, but this is a question of personal taste.
Just for fun, I tried if they can produce music out of a portable source. I plug them to a tiny, watch-sized Shanglin M0 and surprise it has no difficulty to drive them! These cans are very easy to drive. DSD files played from the Shanglin sound wonderful with the ES R-10. [Los Lobos (‘How will the wolf survive’), Opus 3 (‘DSD showcase’)]. Certainly a better amp improves the sound, you get richer sound, more profound and more extended in bass and treble, but this combo is more than able to deliver very pleasant music. Why would someone want to use this cans with their delicate wood cups as a portable device, I could not guess. Although they are closed phones, they do not isolate enough in a noisy place or outdoors.
All in all, this is a truly great headphone. I like it better than my HD800 and LCD2. It is not the best on everything but it is excellent on most things. It is not ultra revealing as HD800 but it is revealing enough and in a natural way. More realistic of music as you would experience it live.
Compared to electrocstats, the ES R-10 has less resolution and it is more balanced tonality (meaning neither bright nor dark) than the electrostatics I have, of which only the Sennheiser HE60 I would call neutral. The ES R-10 has more impact, it is more punchy. Some people find electrostatics sterile (not me!) but I must admit the ESR-10 gives something extra in terms of feeling the air moving towards your ears. More image depth. Where the electrostatic produce like a very detailed 2D image in the tip of your nose (actually unrealistically detailed), instead dynamic headphones generally give you more 3D, more realistic depth presentation of the scene. This is my main grief with the electrostatics. The ES R-10 reveals itself as a dynamic phone here and I say it as a compliment. It has more soul, as opposed to sterile reproduction.
I did not mention the price yet. Their price is very competitive, I think. At this price point, I think they are a bargain. Fully recommendable.