When comparing Sennheiser HD 650 vs Jaybird X2, 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 Jaybird X2 is ranked 28th. 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 Wing tips improve fit
The X2 comes with wing tips that you can attach to the earpieces. The tips enhance the grip of the headphones in the ear, and will help keep them secure even while you are running.
Pro Fun sound signature with lively highs and punchy bass
The highs are crisp, airy and forward so detail presentation is very good. Bass is fast and controlled instead of boomy, so it does not muddy up the overall sound.
This sound signature works well with a wide range of genres and rock, pop, hip-hop and EDM will definitely sound great with these headphones.
Pro Allows taking calls
Integrated into the remote is a microphone, so you do not need to pull out your phone should a call come in. Mic quality is pretty decent, and your voice should be easy to understand on the other line.
Pro Stable wireless connection
Signal quality is pretty stable with minimal distortion or drops, even if you are on the move.
Pro Remote allows basic playback control
The in-line remote will allow you to control music playback, adjust volume as well as answer/end calls.
Pro Many accessories are bundled
You get standard silicone ear tips in different sizes, along with a carrying case, different sized wing tips, premium Comply foam ear tips in different sizes, cable management clips as well as the micro-USB charging cable.
Pro Splash resistant
Exposure to drops or small splashes of rain or sweat won't easily damage these.
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 Spotty battery life
Jaybird claims it has 8 hours of playback time, but many users get only around 6 hours. There have been instances where the X2 gives even shorter battery life, with some users only getting around 3 hours of use.
Con Awkward mic/remote settings
Coming from the iPhone's mic/remote can be a bit awkward. The Jaybird uses a long press and hold on the volume up and down to skip songs.