Passive and ANR headsets

[CaptainKing]

Hi there,

Besides the price difference, what is the difference between passive and ANR headsets? Does the ANR cancel out sound as opposed to not completly canceling out sound? What is recommended for light, piston engine aircraft, passive or ANR?

Thanks much appriciated

[BellyAir]

Macho Wally replies

I fly ATRs and I use ordinary DCs, I think the same you have mentioned.

They are fine.

A colleague, wearing a noise-cancelling set, completely missed an audible caution because his headset cancelled it out.

Perhaps you need something a bit more beefy in a twin-otter, tri-lander or a helicopter, but I can vouch for the performance of ordinary DC headsets in a turbo-prop.

So perhaps you should state what you are flying and go from there.

[Rainboe]

I found HS748s were painfully noisy! A guaranteed headache on a 6 sector day! ANR headsets were a lifesaver! They try and cancel out the ambient noise passing through the headset. In practice, they reduce ambient noise reaching the wearer's ears by a large proportion. The effect is noticeable when you look at the volume setting you have with and without an ANT headset. Without, it can be nearly full volume, with- less than half.

[werbil]

It can be amazing the sounds that you hear with a good set of ANR headsets that you otherwise wouldn't hear. One of the most consistent examples is in a caravan (single turboprop) where you can hear what the punters are saying a couple of rows back that you wouldn't hear when you are wearing a pair of passive DCs. In a DeHavilland Beaver (single, piston radial) I end up closing the pilots window completely and pointing the vent away from me because the wind noise becomes far more significant than the engine noise.

I also find that you can turn the radio volume control down and understand radio communications much more clearly.

ANR headsets are most effective at low frequencies. This means they are great for piston aircraft (including radials). They are rather less effective for high frequencies such as wind noise.

The biggest caution with ANR headsets is that if you are using them in a nosier environment than they can cope with they are crap. I regularly fly Beavers which are extremely noisy in the cockpit. Telex Stratus D50's are great providing the ear seals are in good condition (I'm told the D30's are great too). I couldn't tell the difference between a set of DC X-11's and a set of passive DC's in a Beaver. The Bose I tried I might as well have not had on for the good they did in the Beaver. On the other hand in the Caravan the DCs work very well and I'm told the Bose do too.

Personally, I find it easier to hear warning sounds and unusual sounds with the ANR on. ANR doesn't stop the noise - it just reduces it to a comfortable level.

[CaptainKing]

Thanks for your replies guys. By the way I fly a C152, so any advice on the headset?

Thanks once again

[BellyAir]

If you want someone to pick you up and take you to the shops I think you'll be waiting a long time.

If you want to know the answer you have it.

For early training a ho-hum set is fine and can carry you on to professional flying. Alternatively, these other chaps have had better experiences with ANR headsets that imply they are worth the extra money.

[Rainboe]

Look young man, just get the cheapest one you can find. You're young and your ears can take it! Better to spend money on flying than fancy gear. Leave us to spend money on stuff to look after our ears as we do it for a living all the time.

Can I suggest you read the definition of Questions at the top? Nobody doubts your enthusiasm, but private and light aviation questions should be in Spectators.

[421dog]

Hey, ignore the old guys with attitudes and buy a set of David Clark ANRs (whatever the most recent iterations are) Whenever I fly something with pistons, I use the set my mother bought me for Christmas in 1980 something. They eat AA batteries, but they make it seem like I shut off the engines when I flip the little switch.

[maus88]

I have have a BOSE headset and swear by it. As soon as you flip that little switch it's so quiet.

When I was flying with instructors I would be turning the radios down as the ATC transmissions were so clear and to me loud, only to find the damned instructors with their cheap headsets couldn't hear the ATC transmissions and would keep cranking the radio's up again.

I love taking pax with me and lending them my headset for a few minutes so they can hear the difference.

IMHO you should buy yourself a decent set of ANR headsets and protect your hearing now.

BTW I fly TB10's, C172's, DA40's and the Duchess and I wouldn't be without it!

[ahramin]

Telex Stratus 50D

Excellent passive and the best ANR out there.

[Rainboe]

I think he's 17 years old and trying to fly a Cessna. Be real everybody- paying for flying is bad enough without suggesting Bose fer goodness sake! Unless he experiences bad ones, he'll never appreciate the good ones eventually. Right now at 17- buy cheap second hand and spend the money you save on paying for lessons, and don't listen to these 'experts'! ANR is alright when it is not stopping you flying several hours in flying time!

Money to spare? Go AN Air, (sorry about that!)
Money a bit tight? Spend it on flight!

[CaptainKing]

Hi there,

OK i've been looking tat the answers and see a lot of them contridict the others. I looked on the internet and found that the David Clark 10-13.4 (Passive) and only slightly cheaper Stratus 30 (ANR). Any advice?

Thanks

PS: I'm 15

[ahramin]

I certainly agree with trying to save money and getting a second hand headset. However hearing is important. I have protected my hearing my whole life and it has paid off. Get a good headset that works well. If you can't afford the best brand new, at least get something that is comfortable and protects your hearing. It may be better to spend the money on a headset rather than on more flying time if you spend that time distracted by headaches and comm problems.

[maus88]

Rainboe - I am not professing to be an 'expert' He asked for an opinion and I simply gave mine.

For the record I bought my BOSE headset off eBay second hand. The set of DC before that I bought from another student at the local aero club again second hand.

IMHO you only get your hearing once, therefore you should try to protect it at all costs.

[Rainboe]

Come on everybody, have you forgotten when you started flying? Was the luxury of a high quality noise attenuating heasdset more important than many flying hours? He´s starting flying. If he carries on, he can treat himself when he can afford it, but to suggest to a beginner who may be financially strapped for every flying hour that he goes gets himself a Bose? Shame on you! A bog-standard cheapo headset is fine, and filling him with horror tales of protecting ears is nonsense. Most of us have done hundreds of hours in pistons and our hearing is still fine.
Captain, DON´T waste mney on an ANR until you decide you are going to fly for a long time and you have lots of experience! Enjoy your flying with an ordinary headsetö it will not do you ANY harm! Spend the money on lessons. One day, you will decide you will treat yourself. But it would be criminal if you blew money on one now and didn´t go flying for a few hours to pay for it. Pilots survived right up to 25 years ago without them, quite happily.

[redsnail]

Gees, I used my old DC (sans ANR) for years and flew noisy singles and Islanders etc with them. If the radios are any good, just cut an ear plug in half and voila, peace and quiet for the fraction of the cost of ANR. (That is, stick the half ear plug thingy in your ear + the trusty DCs)

Plus! Hearing protection when wandering around the ramp without your mega flash (read exy) head sets on.

Ah ha! You say, he might get run over cos he can't hear the evil fuel trucks or baggage carts bearing down on him. He'll have his trusty Hi Viz on so he'll be safe.

Lots of people are dismissive of DCs. However, if you're operating far away from a comfy city with lots of support, DCs are your head set. They work plus the back up *should* any thing go wrong is good. Also, they are field repairable.

[Tinstaafl]

My DCs are still going strong after 25 years with me - and I bought them 2nd hand from my instructor. They're H10-40s and were made prior to headset mounted volume controls becoming the norm. I had them refurbished at the DC factory (a whole US$70) in the early '90s but apart from that they keep on chugging along.

They've been used & abused during the heat & humidity of the monsoon in Australia's Northern Territory, the dusty heat of the Oz desert in summer & winter, below freezing in several winters in the Shetland Islands, and any number of hours in a salty maritime environment around Shetland & the Bahamas. Aircraft have ranged from most Cessna/Piper/Beech singles to most of the common twins including that bastion of noise over elegance, the Islander, and a couple of turboprops.

I like that there is little to go wrong with them. Operating in remote areas means that I could make repairs myself on the rare occasion it was necessary (old style plugs prior to the factory renovation, replace a speaker & a mic.). Lots of standardised parts so even non-DC parts could be used. Also no electronics to go tits up or need a power source (ANC), no variable resistor to break or limit maximum volume due to residual resistance in the varister (headset volume control). Like Reddo says: Use an earplug if you want a bit more attenuation. I sometimes used my music player's earbuds (walkman originally then digital). You need the very small type of earbud with little or no bits sticking out if you want to use earbuds.

[Chesty Morgan]

Gotta agree with Rainboe on this. I used my bog standard DC head set all the way through flying training, flying the 146 (not known for it's quiet flight deck) and on the Q400.

I did try a set of ANR sennheisers on the Q400 and the difference between those and the DC's was negligible.

In my opinion spending a few hundred quid on a 'lifestyle accesory' is daft when that money could buy you a couple more hours of flying or a months worth of beer.

Oh yes, the results of my audiograms haven't changed over the last 15 years so damaging your hearing by wearing a 'normal' headset is probably a load of old nonsense

[transducer]

Anyone had any experience with the new Telex Airman 850 ANR? Will use them in a CRJ. Not the nosiest flight deck but the avionics cooling fans and wind can be tiring on a long day.

[Rainboe]

Yes, I'm on my second. There is a thread elsewhere on Telex v Sennheiser. Incredibly fragile at the earpiece pivot. The pivot structure is simply a solid plastic-type base. Put a bit of pressure on the ear piece at the wrong angle, as if you are pushing them upside down into your briefcase, and you will hear a little plastic snapping sound that costs £370 as the earpiece breaks loose. I cannot believe it was made so light and weak.

I'm on my second because I got one on eBay for £100, plus £50 for the Airbus plug/Boeing adapter.