When comparing Sennheiser HD 650 vs Audio-Technica ATH-ANC23, the Slant community recommends Sennheiser HD 650 for most people. In the question“What are the best headphones?” Sennheiser HD 650 is ranked 17th while Audio-Technica ATH-ANC23 is ranked 74th. The most important reason people chose Sennheiser HD 650 is:
The sound signature is near neutral but with a little emphasis on the lower frequencies. The bass is slightly forward with good punch and tightness. Explosions will have good rumble, without overpowering the other frequencies. The mids are warm and clear, adding extra body to the sound. Game dialogue will be easy to hear. Highs have good clarity, but are not forward in any way, so harshness is minimized.
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Pro Tight and punchy bass, clear with natural mids and highs
The sound signature is near neutral but with a little emphasis on the lower frequencies. The bass is slightly forward with good punch and tightness. Explosions will have good rumble, without overpowering the other frequencies.
The mids are warm and clear, adding extra body to the sound. Game dialogue will be easy to hear.
Highs have good clarity, but are not forward in any way, so harshness is minimized.
Pro Lightweight and comfortable with a near neutral sound signature
The H650 is popular for its near neutral sound, which makes it quite versatile. The headphones can give a great casual listening, gaming, and movie watching experience yet are accurate enough for pro audio mixing. They are also lightweight and comfortable so you won't have any issues wearing them for hours.
Pro Comfortable even when used for hours straight
Clamping force is not too tight. The ear pads and headband feature memory foam which are covered by velour material. The pads feel really soft on the head and allow airflow for minimized heat build-up/sweat.
The headband also features similar cushioning materials and minimizes pressure spots on the head.
Pro Decent soundstage
The open ear cup design allows the sound to blend with your surroundings, giving it a natural width. It will also be easier to identify the direction of sounds, which can really help immersion.
Pro Lightweight for full-sized headphones
The HD-650s do not feel heavy at all. They are usable for long music listening, movie or gaming sessions without feeling pain or strain on their head and neck.
Pro Headphone cable can easily be replaced
While the cable connectors are proprietary, they can easily be removed from the ear cups with a firm pull. The popularity of these headphones means that there are a lot of aftermarket cables that can be bought.
Pro Extensive accessory bundle
The ATH-ANC23 offers good value for money due to the extras that you get. The accessory pack includes a carrying pouch, the active noise cancelling in-line control hub, an alkaline battery, an airplane adapter and a number of eartips, including foam ones, which provide a better seal and noise isolation than the standard silicone tips.
Pro Good active noise cancelling
The active noise canceling feature blocks out high and mid frequency noise quite well. Voices and environmental noise aren’t likely to interfere with your music. Loud, low-frequency noises like jet engines may still seep through though, so these are not the best for long flights.
Pro Balanced and clear sound
These headphones will sound great with a practically all genres of music. The highs are slightly rolled-off, but still present a good level of detail, so these headphones are not harsh. The mids are warm, while the bass is controlled instead of boomy.
Con Sound leak can be a distraction for others
The open design means that a lot of sound can leak out the ear cups. Other people in your immediate vicinity will be able to hear your music, movie or game, which can be annoying for them.
Con Requires a headphone amp for optimal sound
Plugging these directly to your computer or phone will most likely result in audio that is lacking in volume or may sound too thin. To get the best listening experience, you will need to run these with a capable headphone amp.
Con The control unit to earpiece cable may be too short
If you are a tall person, you may have a problem positioning the large active noise cancelling module. The wire connecting the module to the earpieces is quite short. This can make it a little difficult to clip the module to your belt or pocket, which can get annoying.
Con Noise cancelling is not very effective on low-frequency noise
You may still clearly hear low-frequency noise, even with active noise cancelling turned on. The feature is effective on high and mid frequency noise, but not that well on low-frequency sounds. Loud engine noises may still mix in with your music.