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JBL Synchros S300 A

alaTest has collected and analyzed 17 reviews of JBL Synchros S300 A. The average rating for this product is 4.2/5, compared to an average rating of 4.0/5 for other Headphones for all reviews. Reviewers are impressed by the durability and reliability. The bass quality and usability are also appreciated, but reviews are divided on the price. Some have doubts about the size.

design, usability, bass quality, reliability, durability


We analyzed user and expert ratings, product age and more factors. Compared to other Headphones the JBL Synchros S300 A is awarded an overall alaScore™ of 86/100 = Very good quality.

Review analysis

(Based on 17 reviews)

Expert Reviews  

User Reviews  

Showing 2 review(s)

Expert Reviews User Reviews
Showing 1 - 2 of 2 Show Reviews: in English | in other languages (14)

Expert review by: Vic (

JBL Synchros S300a Headphone Review


“Hi Vic, we'd like to send you a new pair of headphones for you to try, are you on an iPhone or an Android?”

Jan, 2014

Expert review by: (

JBL Synchros S300i Review: Premium Cans for Your iPhone


Works great with Android devices too With so many headphones out in the market today, it's hard to find a product that would suit your taste and your budget, especially when you're looking to upgrade from the sub 5K segment of the market to something a...

Mar, 2014