We’ve recently had a couple ZOwners comment on the new ZO’s sound quality in regards to bass. So we decided to break out our test equipment and run some frequency response plot comparisons on ZO, ZO 2.1, ZO 2.3 & ZO FS under various loads (which represent common headphone/IEM loads). Check out the results below.
Specs are a reasonable starting point for beginning a comparison between audio products, but they are only one piece of the puzzle. Consider all of your wants, needs, and desires, and correspondingly the relevant factors associated with a given product, then obtain as much information as feasible before making a decision. Not being impetuous might save you regret, frustration, and money, not to mention ending up with a product that looks good on paper but in the end only looks good on paper. Personally, we’ve sampled, tested, and listened to thousands of audio components. To construct an audio product based on component specs alone does not guarantee good quality sound. It’s not only about specs, but component values, materials, construction, compatibility, and proper integration. That’s what makes the difference.