Review on Bluetooth amplifier for speakers Teli BT-309A by Anastazja Fularczyk ᠌

This amplifier has a good set of interfaces. There is a line input, a microphone input, a radio with a telescopic antenna, bluetooth and a flash drive (although the latter is inconvenient to use). I mainly use this device in bluetooth mode. I personally liked the appearance, although this is very subjective, while it is also clear that the device is still a cheap "China". Also, I always give a fat plus for mechanical switches instead of newfangled touch ones, especially for the on / off toggle switch - offset! There are enough cons too. The main one for me personally: a quiet, but quite audible rumble during operation. When disconnected from the remote control, the hum also remains. You have to turn it off through the main toggle switch - but after that, when you turn it on, the "Line" mode is always selected. This model does not have a stereo pan control (like the Sunbuck AV-608BT), although the speaker outputs are stereo. That is, as I assume, the panorama is rigidly set to the "middle".