Hey all -- I'm the writer of the Amazon review cited and just wanted to say hi. I've been meaning to do a post here, adapting my Amazon review to more Head-Fi sensibilities, but life has gotten in the way. Also, though I used to spend more time here and audiophilia is a really fun and addicting hobby, I've since moved onto the part of my life where I do care about audio quality, but I just don't have the time to hyper-scrutinize things with lossless audio and several hundred dollar amps (but I totally respect those that do!)
My basic quest is to find and keep a set of headphones that is best in class for a wireless Bluetooth headphone that has active noise cancellation to drown out things like the subway, my coworkers (I work in an open desk environment), and my girlfriend's activities in our apartment. I started with the Sony MDR-1RBT and despite reviews suggesting great passive isolation, that passive isolation simply isn't enough in places like the subway. I moved onto the Samsung Level Overs which were decent, but had a few flaws. Its sound signature was extremely neutral and just wasn't as fun to listen to without its accompanying Android app with EQ. The only problem is that when paired with the computer, I had to futz around with EQ and it never really was ideal. Also, the ANC logic needed work: the ANC mics are pointed forward and so if you're walking fast or wind is blowing your way (as is typical when walking up the stairs out of a subway), you got an earful of mic wind noise. Lastly, the Level Overs are
huge, they are
heavy, and they don't really adjust well.
Anyway, after seeing the Symphony 1s announced at CES, I eagerly awaited their release, and long story short, decided they were great for my needs and haven't felt the need to keep looking (where obviously the Sennheiser Momentum 2.0s would be next on the list to try).
Re: short on the descriptions of sound quality: To be honest, I stayed away from too many subjective descriptions of the sound quality because I feel like unless you're directly comparing two or more headphones (i.e., headphone x has "blah blah blah" better than y), subjective descriptions are only marginally useful (my opinion, obviously). Basically once you're in the neighborhood of sound signature (analytical > neutral > warm > Beats) that's about as good as it gets. Either way, I stayed away from too many subjective descriptions because I'm probably not as critical listener as many others here (although I have a critical enough ear to distinguish between the low and mid anchoring samples on the last
Hydrogen Audio codec test, which was challenging to many).
That said, I felt like their signature fits my needs far better than that of the Level Overs. They are definitely warmer and have a nice bass punch (passive powered or with BT) than the "not really fun to listen to, but quality" Level Overs (though not as midbass heavy as the 1RBTs).
On the noise cancellation front, yeah I lament that ultimately the best data points are my subjective assessments of the S1's ANC. That said, they are good. I don't know if they are Bose good as I haven't have the pleasure of trying them, but they have definitely made listening to music/podcasts on the subway bearable. In short, with just the passive isolation of the 1RBTs, music is unlistenable at safe volumes (and then it's not enjoyable either). With the Level Overs with ANC on, it's listenable, but not super enjoyable (you get the general contours of the music, but the richness of music is drowned out). With the S1s, we are entering "enjoyable" territory. There's still a ways to go before listening on a subway with ANC gets close to the enjoyability of music in a quiet room, but it's definitely within the beginning of that zone.
Some other thoughts:
The variation of passive OFF versus passive ON, and everything else:
This one was interesting to me, and having spent a lot more time with the S1s since I wrote my Amazon review, I've definitely become more finely attuned to the differences. Here's my take (and I wish we could get an interview with the Definitive Technology engineers to shed more light on this): The thing with wireless headphones that I think some people might gloss over is that they are
POWERED, fully standalone headphones. In theory, wireless headphones have some opportunity to be some of the best, most consistent headphones around (not withstanding wireless transmission/compression losses) because there is necessarily
both a DAC
and and Amp built in—you can theoretically allow the headphone engineer to choose the most suitable DAC and suitable Amp for a given driver choice and configuration, instead of worrying about impedance mismatch and whether headphones can play on mobile phones versus iPods versus home stereos versus computers.
Anyway, I digress. The point is, I would money on the fact that the amp and dac are well-paired with the S1's drivers and all three tuned with that understanding. In passive unpowered mode, you are essentially going back to a place where one risks improper amp/DAC pairing. When listening passively/Off with my Nexus 6 phone, the bass is definitely lacking, but when listening through my portable amp/DAC, it gets closer to when listening passively/On with the S1. Either way, the fact that you have the option to listen to your phone or computer through USB out essentially means that you can put the question of passive/active behind you and get the best of both worlds:
A fully lossless digital transmission that completely utilizes the headphone's paired/tuned DAC and amp. If it weren't for the fact that volume control is a little less convenient and that I still need to get a long, flexible braided USB cable, I would probably listen this way more often to my computer.
As for whether ANC improves/decreases sound quality, I want to say my gut says it's better with ANC, but it's hard to be objective here without good A/B testing. Either way, the ANC is quite hiss free, although if I were to amend my Amazon review, I would note that on Bluetooth there is no ANC hiss, but on passive, you can hear some hiss (though again, still much better than the Level Overs).
The benefit of Dual Mics for telephone noise cancellation
I've since confirmed that the S1s use a dual mic configuration (both in the right earcup) for picking up audio in phone calls and voice recording (I basically recorded audio while rubbing each of the mic holes in the earcup). And I found that the dual mic beamforming is actually quite impressive. While recording, I can speak "at" the right earcup with the headphones off and though I can hear myself in the recording, it is definitely fainter than speaking naturally with the headphones on. In other words, the DT engineers have definitely tuned the noise cancellation beamforming so that it is isolating audio where your mouth is expected to be when wearing them. Super cool.
Wind and Active Noise Cancellation
With the issue of wind blowing into the ANC mics for the Level Overs, I had assumed this was a downside to ANC that I had to live with. In other words, the wind blowing across the ANC mics on the Level Overs (typical when you're walking or are outside) would sound just like if you were to blow across a recording mic. However, I'm pleased to note that regardless of the wind or other conditions around me for the S1s perform admirably. My best guess is that with a quad ANC setup (1 mic on each ear on the outside and 1 on the inside of the earcup), Definitive Technology properly tuned things to switch over to the inner ear mic when a bad signal was coming in from wind on the outside mics. Either way, the ANC performs great in situations that would have challenged the Level Overs.
Reliability
Since I left my review, I had an issue where using the play/pause/forward/backward button, it jammed (I think the switch failed), and basically the button was stuck. On the upside, the
retailer was quite good and sent me a replacement model and everything was a model of good customer service (I reached out to but didn't have to use the Definitive Technology customer service). However, I'll just throw out there that there may be a risk that the button switches may go bad—especially the middle button that happens to serve lots of functions and will be used most frequently.
Re: The Pain in the Ass 2.5mm audio connector
I'm still a little frustrated that a 2.5mm connector was used in the ear cup for passive listening. For those that may not know, many Sennheiser headphones are built this way, so if you want a headphone cable that is a little more substantial than the one included (DT includes a pretty thin and short cable), do a search on eBay for 3rd party headphone cables for Sennheiser headphones, and they work great. For example, I chose this: http://www.ebay.com/itm/251749926652 to have by my laptop for passive listening and it works great.
Anyway, I think that's all of the updates I have; feel free to ask any questions if you have them—