Super sound to the size with quellenabhägnigen disconnections

Unwrapped, Bluetooth on to Smartphone, connected, music, done. Connect is quick and nimble.
Then the first damper: The sound was something hollow and height emphasizes.
Luckily I have nen player used the permitted equalizer settings. There I have a little turned around, especially the bass up and promptly as is a full rich sound from this small cube, the madness.
However, one should not overdo it here, because it overrides quickly.

Only several disconnections via Bluetooth reduce the first impression. Maybe I understand too little about audio connections via Bluetooth, but misfires as in a Funklock nevertheless need not be.
It may also be that the utilization of the transmitter to the crashes guilt is that I have way still played on the smartphone and the wireless connection was active.
Maybe it does not break off when the player is the only active App. Let's see.
// EDIT //
It is actually at the source. My smartphone seems every 30 minutes to do something, what music transfer affected, either the player himself is handicapped by too little CPU time or the transmission power is lost. This Phänomän occurred even with a cable connection with me.
For other sources (other smartphone, forwarding the PC, etc.), this did not happen, and the musical enjoyment was constantly good.

When connected to cable, the volume of the anchor can not regulate.
The keys are there functional only when a Bluetooth connection. Not well resolved.

What annoys, are the speakers own sounds when connecting if the max. Volume is reached, and at other locations. The nerves and are usually louder than the music. I also read in the instruction manual, the device speaks "battery low" when the battery level is too low. Hopefully I never happens.