Full Size Can: M-Audio Q40 Studiophile.

The first time I put on these headphones and listened to them I was sold and fell in love with them in well under five minutes, the sound is excellent, bass is tight and well controlled and extension is very good, mid range a upper range definition are superb. They are comfortable, isolation from outside noise is excellent. They look great - I would describe them as sleek and sexy.

Extremely well designed with detachable cord. You cannot say no and you have to buy them and take them home, they are just that good. This is a must own headphone and I give it a full 5 out of 5 rating.The stereo imaging is top notch and the sound stage is very definite, clear and well defined. Two thumbs up on an excellent set of headphones from M-Audio.

Below is M-Audio's marketing:

Comfort and Convenience

The Studiophile Q40s are designed to go the distance with you—from traveling the globe to marathon studio sessions. A collapsible design means they’ll easily fit in your carry-on luggage. The included storage bag protects them from dust and damage. The convenient removable and replaceable cord extends the life of your investment. And the large, padded ear cups completely surround your ears, ensuring a comfortable fit hour after hour.

Superior Drivers

Full frequency response owes much to the size and construction of a speaker’s driver. The Studiophile Q40 headphones feature extra-large 40mm-diameter drivers—bigger than most other headphones—for extended low frequencies. Bass response is also enhanced by efficient components like neodymium magnets, copper-clad aluminum voice coils and vented diaphragms made of low-mass treated mylar. These elements come together in M-Audio’s custom enclosure, which has been specially tuned to further maximize low-frequency extension.

Closed-back, Circum-aural Design

With sealed backings and comfortable ear cups that completely surround the ears, the Studiophile Q40 headphones deliver excellent sonic isolation for accurate monitoring. You’ll hear more detail at lower volumes, so you can protect your hearing while tracking, mixing or listening in any noisy environment. In addition, the Q40 headphones afford privacy when working in a shared space.

Full Frequency Response

Headphones deliver a level of sound quality matched only by speakers costing a great deal more—especially when it comes to low frequencies. With the Studiophile Q40 headphones, you’ll feel like you’re listening to a full-sized set of reference monitors in a professional studio environment. The Q40s provide excellent imaging and a wide sound stage for accurate mixing—without the hassle of worrying about speaker placement or room acoustics.

Top Features

40mm drivers > exceptional frequency response and detail

closed-back circum-aural design > excellent isolation from outside noise

lightweight frame with comfortable earpads > superior comfort for extended usage

detachable, replaceable cord > convenience, protects your investment

collapsible design > take them anywhere Specifications frequency response: 10Hz to 20kHz sensitivity: 116dB SPL (1mW IEC318) rated impedance: 64 Ω weight without cable: 0.25 kg magnet material: neodymium driver: 40mm Mylar