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We've long held Denon's audio products in high regard, as a quick look at the last six of its products we've reviewed reveals. Spanning everything from earphones to TV soundbars, all have scored either 8/10 or 9/10, which is an enviable record by anyone's account. As you can see from the score at the top, though, with these AH-NC732 headphones, Denon has had a bit of a wobble.

Aimed at travellers and particularly regular flyers, the Denon AH-NC732s are of the supraaural (on-ear) type, rather than the traditional circumaural (over-ear) design, which enables the earcups to be smaller and lighter than typical high-end headphones. They also fold flat for easy storage and come with a tough yet compact carrying case that when closed measures a relatively portable 200 x 150 x 40mm.

Of course, all of these attempts at portability pale in comparison to how unobtrusive a set of earphones (or canalphones, if you prefer) can be. However, if you're not a fan of sticking things in your ears then these Denon's are the next best thing.

On the outside of the case is a net for storing sundry accessories and the inside is home to two further removable pockets in which spare cables and adapters can be stored. Two cables come in the box with one measuring 70cm, making it ideal for use with jogging armbands or if you keep your Portable Media Player (PMP) in your coat pocket, while the other is 150cm, which is long enough to reach down to trouser pockets or round to backpacks. We particularly like the fact the cables are completely removable, making stowing everything away quick and easy.

Also in the box you'll find a stereo 3.5mm jack to twin mono 3.5mm jack adapter (which is a common audio interface used on planes) and a 3.5mm stereo jack to 6mm stereo jack converter as well. So you should be set for most connectivity eventualities straight out of the box.

As you'd expect, considering their price, the build quality of the phones is exemplary with ultra-soft, leather-bound earpiece and headband cushions and sturdy but lightweight hinges and headband. The case is also well made with a quality look and feel both inside and out.

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December 22, 2008, 7:13 pm

I havent tried these headphones but have been using the Bose QuietComfort 3 Acoustic Noise Cancelling headphones for quite a few years now. Great performance both for noise reduction (but agree with comments on some noise intrusion due to the on-ear design)and music. Also lots of accessories supplied - really neat rechargable cell - lasts 20+ hours ( additional battery and acharger with adaptors for everywhere).

Price circa &#163260 - sure they are more expensive than the Denon but .....I wouldnt be without them.

Bose also offer simialr but with over the ear design.


December 22, 2008, 8:57 pm

I agree with the review(er). I bought these headphones over in the US and I am a bit disappointed with the noise reduction, although the sound quality, comfort etc. are very good. I also paid a hair under $140 which is less than half the price of the alternative I considered - the Bose QuietComfort 3.


December 24, 2008, 7:53 am

A very thourough and useful review. I just wanted to mention a couple of points. Compact size is important for travel - I don't want a case to take up half my carry-on bag :) - so the on-ear design is a necessary compromise if you want as compact a headphone as possible and don't like earbuds. I would like to know how they compare with other on-ear models, like Bose QC3.

Auto power-off would be nice, but I dont't see how you would achieve this - they give you the option of using them for noise cancelation without music playback, and you don't want them to turn off automatically when you have them on. There is an indicator light, so it's easy to see and turn the NC switch off before storing.

Ross Alford

June 3, 2009, 9:46 am

I have a pair of these and generally like them, although it would be nice if they had some less messy way of dealing with the cords, assembling the whole outfit is a bit fiddly. I also would like a built-in volume control, as occasionally airline seat volume controls cannot be adjusted down far enough, or automaticlly ramp up during announcements, making you rip the phones off your head--it would be easier to just slide a gain slider. One last comment--either the reviewer has a small head, or the size has changed; for someone with my (large) hat size, if anything they are a tiny bit tighter than necessary and certainly have no tendency to fall off.


November 25, 2009, 6:21 am


Unfortunately your article doesn't cover the scam related to Denon's international warranty or lack of warranty as the case is.

I purchased a pair of these in Singapore two weeks ago and they began playing up on the flight home to Australia. Within 2 weeks I contacted the Australian distributor to find out my warranty would not be honored as I purchased them outside Aus.

Unless I wanted to return them to SG for repair, I was stuck with a dud set of headphones. Needless to say I was not at all happy and as always it was false economy, should have bought the Bose and got a true international warranty.

Very sad as I always thought of Denon as a trusted brand. Shameful!

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