@radsone : I picked up the ES100 MKII on the Black Friday sale. Thank you! I am loving them on both balanced and unbalanced earphones, but there are some glaring flaws that I hope you will address with an app or firmware update. I am running firmware version 2.0.2
(1) There must be a setting to prevent the ES100 from rebooting when plugged in to USB to charge
and when removing them from the charger: I want to be able to plug the ES100 in for a quick charge and remove them from charge a little later
all without having my music interrupted. It seems it should be possible to update the smartphone app and firmware to support this. The rebooting when plugging in or disconnecting is
really annoying.
(2) Why does this have a micro USB type B socket and not a type C socket? This is just silly - Type C is the current standard for mobile devices and the ES100 having a micro B socket basically forces me to carry an extra cable everywhere to charge the ES100's tiny battery that runs low after only a few hours of listening. Please chance the socket in the next version to USB Type C!
(3) Please include a larger battery in the next version of the ES100, even if this means making the device slightly larger. It is just too small now, especially when listening on high-impedance headphones. I think a minimum 50-60% increase in battery capacity would be sufficient.
(4) The app and firmware should allow the user to specify a specific maximum battery charge level and maximum discharge level in the battery care setting. I want to be able to strictly limit charging to, for example, 75% and discharging to 25% in order to maintain the health of the extremely small battery. The user should have more control over the charging and discharging limits, and this should be possible to do with an app and firmware update for the MKI and MKII
(5) There is some kind of problem with my ES100 where the battery indicator in the app registers a much higher charge when the ES100 is connected to a charger and the charge immediately drops about 20% on the battery indicator as soon as the ES100 is removed from the charger. I wanted to charge my ES100 only to 75% (as I said above), so when I reached 75% on the battery indicator in the app I removed the ES100 from the charger. The battery indicator on the app immediately dropped to 55%. Now, because of this, I am not sure of the actual charge state of the battery; is it 75%, 55%, or something in between. Please fix this with a firmware/app update!
(6) Fully parametric equalizer should be available in the app. It would be great if number of bands, specific frequencies, Q factor and gain can be controlled in the app. Actually, the current equalizer in the app is good enough for me now, but many other users have expressed a desire for a fully parametric equalizer, so this comment is mostly for them.
Thank you for listening to my concerns and keep up the great work!
~ Jon