Have you tested listening with lower bass contour levels just to check what happens then?
Have you tested listening with lower bass contour levels just to check what happens then?
Only thing to suggest at this point is to try a different ZO. Are you able to return/exchange the current one ?
This should not be the case. The ZO2 clearly boosts the bass, and this is easily heard when cycling through the contours from Green to Red and vice versa.
What DAP are you using it with? I use my ZO2.3 with Android based DAPs, and I set it on high gain mode, and connect it via headphone out. Volume control is performed with your DAP, and the ZO2.3 is used simply to boost the bass. Try setting the volume (via your DAP) at an acceptable level, and cycle through the contour levels on the ZO2.3. You should be able to hear the increase/decrease in bass quantity.
With the HA-M5X, the bass boost is quite noticeable, especially since the headphone itself is already very bassy. It's strange why you can't hear the increase/decrease in bass levels.
Hey guys. I'm new here and didn't know where to ask this but here it goes. It turns out I am a basshead (a new term I learned from Head-fi) which resulted in my purchase of the JVC FX101s which have garnered unanimous praise for their bass. However, I have found their bass inferior to my previous earbuds (Meelectronic SP51s) and even to my new Vsonic Gr02 BE(which I love!) Are my expectations too high for a $20 IEM or are they perhaps defective? If so, what would be the next bass monster upgrade? Sony XB90? Turbine? Hippo? I mostly listen to rap and electronic music. I'm pretty sure they have a good seal. Thanks!

Hey guys. I'm new here and didn't know where to ask this but here it goes. It turns out I am a basshead (a new term I learned from Head-fi) which resulted in my purchase of the JVC FX101s which have garnered unanimous praise for their bass. However, I have found their bass inferior to my previous earbuds (Meelectronic SP51s) and even to my new Vsonic Gr02 BE(which I love!) Are my expectations too high for a $20 IEM or are they perhaps defective? If so, what would be the next bass monster upgrade? Sony XB90? Turbine? Hippo? I mostly listen to rap and electronic music. I'm pretty sure they have a good seal. Thanks!
I would suggest checking into the Velodyne V-Pulse (under $100).

I would highly recommend either the V-Moda M-100 or Yamaha Pro 500 as an alternative, especially if you want something fully closed and portable.
I see the word 'portable' being thrown around a lot. If I don't plan to be using my headphones outside my home should I look into something that's not portable? If so what are my choices at around $300?
I just found out something awesome. I accidentally halfway plugged in my headphones into my receiver (so that only the left channel gets audio), and I got twice as much power going to the driver. It's like it took the power that would go to the right channel and combined it with the left one. Now, the SPL is so much it just doesn't tickle my eardrum, it feels like there's an earthquake going on in there. Plus, I can pump the volume up even louder because the extra power pushes up the clipping roof. I'll tell you what, AT's 53mm drivers are something else. This little experience has convinced me to get a better amp instead of buying another pair of headphones. I'm definitely saving up for a Schiit Lyr now. That should be enough...