Linux H6 and the A2DP soap

Hello everyone,

I want to do something simple with my OrangePi One Plus. That is to connect a bluetooth speaker and play wireless from the Pi with a CSR8510 A10 USB dongel. The dongel works and i can pair with every device. Even with my JBL Go 2 bluetooth speaker:

hj@PLUS-OrangePiOne:~ $ sudo bluetoothctl
[NEW] Controller YY:YY:YY:YY PLUS-OrangePiOne [default]
Agent registered
[bluetooth]# power on
Changing power on succeeded
[bluetooth]# scan on
Discovery started
[CHG] Controller YY:YY:YY:YY Discovering: yes
[NEW] Device XX:XX:XX:XX JBL GO 2
[bluetooth]# scan off
Discovery stopped
[CHG] Controller YY:YY:YY:YY Discovering: no
[CHG] Device XX:XX:XX:XX TxPower is nil
[CHG] Device XX:XX:XX:XX RSSI is nil
[bluetooth]# trust XX:XX:XX:XX
[CHG] Device XX:XX:XX:XX Trusted: yes
Changing XX:XX:XX:XX trust succeeded
[bluetooth]# pair XX:XX:XX:XX
Attempting to pair with XX:XX:XX:XX
[CHG] Device XX:XX:XX:XX Connected: yes
[CHG] Device XX:XX:XX:XX UUIDs: 00001108-0000-1000-8000-00805f9b34fb
[CHG] Device XX:XX:XX:XX UUIDs: 0000110b-0000-1000-8000-00805f9b34fb
[CHG] Device XX:XX:XX:XX UUIDs: 0000110c-0000-1000-8000-00805f9b34fb
[CHG] Device XX:XX:XX:XX UUIDs: 0000110e-0000-1000-8000-00805f9b34fb
[CHG] Device XX:XX:XX:XX UUIDs: 0000111e-0000-1000-8000-00805f9b34fb
[CHG] Device XX:XX:XX:XX ServicesResolved: yes
[CHG] Device XX:XX:XX:XX Paired: yes
Pairing successful
[CHG] Device XX:XX:XX:XX ServicesResolved: no
[CHG] Device XX:XX:XX:XX Connected: no
[bluetooth]# connect XX:XX:XX:XX
Attempting to connect to XX:XX:XX:XX
Failed to connect: org.bluez.Error.Failed

But, as you can see above, i can´t connect to the JBL Go2. If i open the bluetooth service i read:

hj@PLUS-OrangePiOne:~ $ sudo service bluetooth status
* bluetooth.service - Bluetooth service
   Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
   Active: active (running) since Sun 2019-11-10 14:53:35 CET; 1h 9min ago
     Docs: man:bluetoothd(8)
 Main PID: 732 (bluetoothd)
   Status: "Running"
    Tasks: 1 (limit: 1021)
   CGroup: /system.slice/bluetooth.service
           `-732 /usr/lib/bluetooth/bluetoothd

Nov 10 15:42:13 PLUS-OrangePiOne bluetoothd[732]: a2dp-sink profile connect failed for XX:XX:XX:XX Protocol not available
Nov 10 15:43:20 PLUS-OrangePiOne bluetoothd[732]: a2dp-sink profile connect failed for XX:XX:XX:XX Protocol not available
Nov 10 15:43:36 PLUS-OrangePiOne bluetoothd[732]: a2dp-sink profile connect failed for XX:XX:XX:XX Protocol not available
Nov 10 15:43:44 PLUS-OrangePiOne bluetoothd[732]: a2dp-sink profile connect failed for XX:XX:XX:XX Protocol not available
Nov 10 15:43:53 PLUS-OrangePiOne bluetoothd[732]: a2dp-sink profile connect failed for XX:XX:XX:XX Protocol not available
Nov 10 15:44:03 PLUS-OrangePiOne bluetoothd[732]: a2dp-sink profile connect failed for XX:XX:XX:XX Protocol not available
Nov 10 15:44:09 PLUS-OrangePiOne bluetoothd[732]: a2dp-sink profile connect failed for XX:XX:XX:XX Protocol not available
Nov 10 15:44:11 PLUS-OrangePiOne bluetoothd[732]: a2dp-sink profile connect failed for XX:XX:XX:XX Protocol not available
Nov 10 15:44:18 PLUS-OrangePiOne bluetoothd[732]: a2dp-sink profile connect failed for XX:XX:XX:XX Protocol not available
Nov 10 15:59:28 PLUS-OrangePiOne bluetoothd[732]: a2dp-sink profile connect failed for XX:XX:XX:XX Protocol not available

Off course did i look on Google and i read something with pulseaudio but that should be installed also the ´pulse-module-bluetooth´ module. i have no idea to fix this.

Btw: connecting to non-audio bluetooth devices works. Connecting to the JBL Go2 from Armbian-config does also not work...

Does someone of you a sugestion to make  a2dp working?