Detailed JBL C300SI review

In this article, we review JBL C300SI which is the most popular headphone in the JBL series, last time we also covered Top 4 best JBL earphones under 1000.


  • Gold plated 3.5 mm audio jack.
  • Driver size is 40 mm.
  • Deep bass feature.
  • On-ear headphone design.
  • 32 ohms of impedance.
  • 20 Hz to 20000 Hz frequency response.
  • No microphone.
  • 40 mm dynamic driver.
  • 10mW rated power input.
  • 120mW max power input.
  • 150 grams of weight.
  • 1 year of warranty.
  • Lightweight
  • Bass is superb in this price range, great bass.
  • Sound clarity is ok.
  • Nice padding under the headband feels more comfortable.
  • You can use them for hours.
  • Padding under the earcups is soft.
  • No inline remote and no mic.
  • Because of non-foldable design, it is not a very good thing to carry them while you travel

Sound & Bass Quality

  • A 30 mm driver gives you a good amount of bass and even sound quality is also good.
  • They are bass-heavy headphones, they can easily satisfy the bass lovers.

Build Quality:

  • The headphones look pretty good and attractive, left and right mentioned on the earcups.
  • Most of the headphones build with plastic but there is no creaking sound which means its a good quality plastic.
  • The cautioning of the earpads feels soft and very good even the earcups can rotate which offers you great comfort.
  • The adjustable band made of steel so you can adjust that as per your head size which is a good thing.
  • On top of the headphones, you get a good amount of padding which is the best thing about these headphones normally you won’t get good padding under 1000 rs.

Other Features: 

  • The packaging of the headphones is simple, on the back of the cover you will see the specifications and user manual.
  • If you are looking for great bass, good quality, stylish and sturdy headphones they are the one for you among all the best headphones under 1000 2018.
  • The quality of the cable is good and it is long enough but it’s not a tangle-free cable.
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