They are not BAD in terms of overall quality (I used to like them in terms of battery, bluetooth, ANC, plus they're super comfortable) but in terms of pure SOUND, they barely stand up to 100$ headphones. I know people here always have to agree on what reviewers say, but I'll tell you a secret: you can also have your own opinion, and this is mine after trying both the II and the III, and I'm not the only one in the world that thinks the QC35 are just an "average sounding" product. In any case, microdetail and slow bass aren't just audiophile gimmick, I'm not an audiophile and I consider that word as an offense: I'm not the type of guy who focus his entire attention on gear as I like music more than gear, not an audiophile by any means (proven by the fact I'm a basshead while audiophiles usually think about getting neutral stuff and considering other things bad).Ĭonsidering that I have tried both the II and III, I can say they are poor in terms of detail retrieval and the bass is slow and fat, yes, lower midrange is completely affected by a very long decay that is quite annoying, and I say this being a basshead so I usually like fat bass (but it has to be a quality one, and this is not the case). So much so that I did not want to take them off to take the pictures for the review!Īs an aside, here is the EQ that I applied to AKG K371 headphone:Ĭlick to expand.You're telling me the things I'm saying are not objective and then your write "bright headphones are not any kind of better", like if bright is always a bad thing. Once there, toe tapping started and I could listen endlessly to my test tracks. Spatial qualities were a bit light and higher frequencies a tad dull so I put in a bit of salt and pepper on it: The clean and appropriate bass response was a delight. I was instantly at ease with the tonality of the 35 II. Paradoxically, even though we are using the internal amplifier when the unit is on, it is not the most efficient headphone to drive:īose QuietComfort 35 II Listening Tests and Equalization Impedance radically changes when the unit is on or off: The entire curve is lifted up from 0 degree indicating a constant delay of about quarter of a millisecond. Good news extends to very low distortion at decent levels:Ĭonsidering how much bass we already have - so we don't have to boost it - that is excellent level of distortion in that region.Īgain, remember that this is to be compared to post EQ for other headphones that are weak in bass.Ĭlean, not fuzzy group delay shows that we have one radiator doing its job, not a bunch of other resonances mixing in: That is pretty good tracking of our target response! It is essentially perfect to 1 kHz. Equally so, I was impressed once I turned it on and it not only flattened the variations in bass and mid-range but also pulled up the bass response to below 20 Hz! Here is the powered on response again: I first ran it with it powered off and was surprised how bad the response was. Let's start with frequency response of 35 II and comparison to our preference target to figure out tonality of the headphone, with the unit bot on and off: Listening tests are performed using RME ADI-2 DAC and its headphone output. In addition, comparison of measurements between different people performing it using different configurations requires fair bit of skill. Headphone measurements require more interpretation than speaker tests and have more of a requirement for subjective testing as a result. Note: The measurements you are about to see are preformed using standardized GRAS 45CA headphone measurement fixture. Noise sources with lower frequency content will likely show off the effect more. Turning it on removed the last bit but really, it was fine without it. Just wearing the 35 II was enough to kill 90% of the noise. I briefly tested the noise cancelling function using my Audio Precision fan noise as stimulus. Fine right now in winter but I suspect they may get too hot in summer. They are on the softer side and seal well which means they wear warm. The cups are on the smaller side but fit my ears fine: It has an incredible 44,000 reviews on Amazon averaging 4.5 stars! Are the masses right? We are going to find out. It costs US $299 on Amazon including Prime shipping. It was kindly purchased new by a member and drop shipped to me. This is a review and detailed measurements of the Bose QuietComfort 35 II noise cancelling headphone.
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