Originally Posted by wickson
The gold one is 3.7 volts, the other is 4.35. I wonder is the dx90 will benefit from the extra voltage?
I actually own the above Kinps 4.35v battery, I also have a genuine Samsung battery. I can hear differences in sound between those two batteries and the stock battery. My favorite is the Samsung battery which has the cleanest sound, with most extended bass and treble, my guess would be that the internal impedance is lowest out of the three batteries. The Kinps battery definitely has the most impact of the three batteries, but doesn't sound as transparent or extended, has tamed treble and bigger bass, I would guess it has the highest internal impedance and/or the highest voltage. The stock DX90 battery sounds good, the transparency is about the same as the samsung battery, but its bass doesn't extend as low, and its treble is harsher, while the samsung battery has a more refined treble where you can hear its details easier. I bought my samsung battery of a headfier who couldn't hear a big difference, so if your not the type that can sit down and really focus on the fine details then don't bother. To me personally it is an essential upgrade in sound as I love extended bass and refined treble.
Popcorn time But I'm actually being serious
Edited by T.R.A.N.C.E. - 5/19/14 at 5:29pm