I've just read a review on these and they would be an unmitigated disaster for anyone who is blind to use.

Firstly the review clearly states that the touch panels - these cans have two - need to be controlled with precise movement and mistakes are easily made so - if someone with sight is having trouble - just imagine what it would be like for someone who is totally blind?


The command activated by the gesture is voiced and the reviewer made mention of how frustrating he found it when he say gestured for the volume to be made louder only to discover that he'd skipped to the next track in his music collection, not too pleasant I would think.

The user also has to make gestures when answering incoming phone calls from the mobile, need i say any more.

Far superior? Well both these headphones and the MM550X have AptX for Bluetooth, I've had the MM550X and - whilst they have a few design faults and the noise cancelling isn't as good as it perhaps could be - I've not been disappointed.

Noice scance3lling is something I've never bothered about anyway myself.



On 6/09/2016 4:23 PM, Tim Noonan wrote:
I've been using the Sennheiser PXC 550 Bluetooth travel headphones for a month 
or so now (they have just been released) and they are amazingly good.

They supersede the MM 550 phones that have been out for a couple of years now 
with vastly improved noise reduction, superb audio quality, comfort and 
features.

The right ear cup has a touch surface for gestures for increasing and 
decreasing volume, skipping tracks, pausing, voice dial and voice-through 
facilities.

Connection is Bluetooth 4.2 with ApdX. they come with a detachable 3.5ml cable 
or they act as a sound card when connected to a computer via USB cable 
supporting 48k at 16 bits.

They use the same drivers as do the Momentum 2.0 Wireless and fold flat for 
travel. You turn them on by placing them on your head and when you fold the ear 
cups flat, they power off.

The multiple mics enable fantastic call quality for speaker and listener and 
you hear yourself and the caller as if you were both in the same room, making 
quiet comfortable conversation very easy and natural.

The Mics also do an excellent job picking up only your voice and ignoring the 
other voices and sounds around you.

The noise cancellation is considered very good overall, but not at par with the 
NR in the Bose QC35s.

An app for Android and iOS is available to tune the frequency response of the 
headphones, but this is not well designed and on IOS is not accessible. I 
haven't tested the app under Android.

The PXC 550 Sound is reported to be significantly superior to the Bose QC 35s 
and has tight but not overly intense bass. They have a frequency response up to 
23 KHZ  and excellent stereo separation and instrument isolation.

Some non-audiofile reviewers have said they prefer the more defined sound from 
the Momentum 2.0 wireless, others who have reviewed the PXC 550s more 
extensively rate the sound more highly. Sennheiser say that the Momentums have 
a more defined sound to be heard in city travel, whereas the noise cancellation 
improvements on the PXC 550 mean they can produce a flatter more accurate 
response  without outside noise interfering with their excellent sound 
reproduction.

I'm extremely particular about my sound, and these are magnificent for a wide 
range of music listening - but if you like over-emphasised bass, they probably 
won't be a good match for you.

Comfort is excellent and battery life ranges from 20-30 hours on a charge, 
depending on whether bluetooth is enabled.

They are high-end at $399 USD or around $625 AUD.

I haven't had opportunity to listen to the B & W P7s, but they have just 
announced a Bluetooth-capable version of these. Time will tell  which has the 
better sound, but for on-the-go listening plus Noise Cancellation, the PXC 550 are 
an excellent all-rounder option.

On 6 Sep 2016, at 3:05 PM, Dane Trethowan <grtd...@internode.on.net> wrote:









I received a pair of Sehheiser MM550X cans today and I’m suitably impressed 
though everything isn’t roses with this system, there’s nothing much to 
complain about really as I regard the gripes I have as minor irritations to be 
aware of so as such they will be left to last.

The MM550 is a comfortable closed headset which is of a lightweight but sturdy 
build and can be folded up into a carry case supplied for travelling.

As such the user is provided with all manner of adapters for these cans 
including an adapter for connection to an inflight entertainment system via the 
use of the supplied cable that turns these cans into a very nice sounding pair 
of wired cans but the main attraction of the MM550 – apart from its build and 
travelling versatility – is the Bluetooth component without a doubt.

The MM550 come equipped with AptX decoding which is noticeable right away when 
paired to my Samsung Galaxy S6 and to me the aptX facility is the big sounding 
feature for these cans.

Naturally voic calls can be made and answered from the MM550 using Google Now 
or similar – SIRI on an iPhone – and the microphones on the MM550 give 
extremely good definition in phone calls particularly if you’re able to use HD 
Voice on your phone’s network.

I’ve not tried the active noise cancellation feature yet though for a closed 
set of cans I wonder why you’d need it?.

The MM550 also provides a “Talk Through” function, suppose you’re listening to 
your favourite tracks on a long flight and you wish to hear what’s going on 
around you, press the “Talk Through” button and you’ll hear! Without removing 
the cans from your ears.

Music sounds wonderful through these cans – whether using the direct cable 
connection of Bluetooth – but the Bluetooth experience is certainly made more 
worthwhile given the control you have over your music collection from the MM550 
system itself which is provided with track forward and back buttons as well as 
using the master button as a pause.

I haven’t listened to the MM550 for an extended period of time yet though I 
doubt I’ll encounter any problems with sore ears given the weight of this 
headset and its luxurious leather padding around the cuffs.

So to the couple of bad things about this headset and the first is annoying.

The lithium-ion battery can be charged either inside or outside the headset but 
if you’re charging inside the headset be sure to put your hand over the battery 
when you remove the USB charging cable or the battery will come too, that’s 
right, out of the headset itself and that’s a very poor design.

The MM550 has direct cable connection however in this mode the headphones are 
completely passive meaning that they rely on the amplifier of the system 
they’re wired to for volume and that’s fine in theory and really I have no 
argument on that score.

The problem is if you’re wanting to direct wire them to the headphones output 
of your Cell Phone or similar thinking that the microphones of the cans and the 
remote control buttons will work, they certainly will not., as I mentioned at 
the start of this review a minor gripe though I’m sure Senheiser could improve 
upon this if they really wanted to.

Now is the perfect time to buy the Senheiser MM550 headset as its been 
discontinued and you should be able to get it for a good price as I did.

So why didn’t I go for the replacement model? The replacement model has touch 
buttons which don’t appeal to me all that much though having said that the 
newer model does have an IOS and Android App which might be useful.




Tim Noonan
Consultant  Speaker  Coach

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