The active isolation of the QC35 Bose does not vary from one update to another

At each update of the firmware of the QC35 Bose, there are dozens of customer testimonials believe that the active isolation of their helmets is less healthy than before. In the Face of these notes, the manufacturer has often turned a deaf ear, which has not contributed to calm down the dissatisfied, or responded that there was no change on this point.


Since the output of the first model in 2016, this is an issue that comes up regularly, although we do not know very well if an update indicates fault or if it was prints unfounded. To have the heart net, the website 01Net has placed a QC35 II on a dummy test and measured the active isolation with two versions of the firmware. They were first tested with an old version, 4.3.6, and then with the latest one, the 4.5.2, which is responsible of degradation of the active isolation after many customers.


Photo 01Net

Their results are formal : there is no difference between the two. At the maximum, their measurements show a deviation of less than 0.5 dB, which is well within the margin of error and does not allow to conclude. Important Point, the two measurements were made without touching the headset to maintain exactly the same conditions. It is essential not to distort the results and 01Net note that it is perhaps this that explains the findings of certain tests of objective measures, such as the one led by the site RTINGS.com.


Bose has confirmed to our colleagues that they had never been able to measure the difference between two versions of the firmware, and even that this aspect of the helmet was never touched over the years. Everything seems to indicate that it is an effect nocebo, the opposite of the placebo effect. An effect that does not touch Bose, moreover, many users of the headset competitor of Sony have complained about them as a reduction of the active isolation after an update.

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