Bose is bringing an finish to the long-running saga of complaints concerning noise cancellation points with its Quiet Consolation 35 and Quiet Consolation 35 II Bluetooth headphones. After spending months trying into experiences of lowered NC efficiency — one thing many purchasers have blamed on firmware updates — Bose has concluded that firmware isn’t chargeable for the perceived drop in noise cancellation effectiveness. But it surely’s going to let QC35 house owners downgrade again to older firmware in the event that they wish to, which is an choice that the corporate had beforehand supported, however later pulled amid all this controversy.

As famous by Gizmodo, Bose printed a long, in-depth forum post about its findings on Thursday. “Once we launched QC35 I and II, we set stringent specs for noise cancelling efficiency,” the corporate wrote in its report. “By means of all of our investigation and testing, we’re assured that firmware 4.5.2 didn’t have an effect on the noise cancelling function.”

The corporate carried out intensive lab testing and went as far as to go to some prospects at dwelling to watch them utilizing the QC35 and QC35II headphones. “This strong analysis of customer-returned items didn’t reveal any points with noise cancellation efficiency, and Bose was not capable of replicate the considerations of our prospects,” the report says.

Among the {hardware} that Bose used to check the QC35 and QC35II headphones.
Picture: Bose

However since there was nonetheless a disconnect between buyer suggestions and its personal findings, the corporate wasn’t glad to finish the investigation there. So it went additional and sought out impartial testing via “a third-party acoustics check laboratory.” Once more, the up to date 4.5.2 firmware confirmed no indicators of being the perpetrator behind degraded noise cancellation.

So what’s the issue, then? There’s bought to be one thing occurring that created this refrain of complaints, proper? Nicely, Bose has a proof. Within the few small circumstances the place it did discover a measurable distinction in noise canceling high quality, the corporate says the ear cups weren’t totally snapped on; Bose says lacking even one of many 10 tabs could make a distinction. Third-party ear cushions had been additionally discovered to “negatively influence passive discount efficiency” and put the headphones out of spec, and Bose additionally seen that some items from prospects had mechanical harm — doubtless from on a regular basis put on and tear.

“Our full engineering evaluation decided that the degradation in all circumstances was the results of {hardware} associated points with ear cushions, aftermarket components, or mechanical integrity. As soon as once more, the firmware replace 4.5.2 was not discovered to be the reason for any degradation in total noise discount efficiency.”

In response to all of this, Bose is updating its testing procedures, bettering its firmware replace web site, and (quickly) giving prospects the choice to downgrade in the event that they so select — even whereas insisting that firmware was by no means the issue. QC35II house owners can downgrade to 4.3.6, and the unique QC35 can return to 2.5.5. “In case you want to make the most of this downgrade choice, we advise you to take action as quickly as attainable,” Bose stated, and the corporate stated it encourages all prospects to stay updated on the most recent firmware. It additionally made the above video for troubleshooting noise cancellation issues.

Take all of it in, and I believe this can be a fairly commendable job from Bose in attempting to search out no matter drawback has been irritating folks. The corporate took a very long time to handle the preliminary buildup of complaints, but it surely’s laborious to argue that Bose didn’t put in some severe work right here. To that finish, Bose has posted a forum thread where customers can discuss the latest report. Some are appreciative of the corporate’s effort, however others nonetheless suppose Bose has missed the mark and say the lowered noise cancellation subject stays unresolved.

The general takeaway is that this: in case your QC35 or QC35II are working nicely, perhaps simply attempt to preserve them on no matter firmware they’re working for so long as attainable if you wish to keep away from this headache.

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