However, there are songs that have a default equalizer, then of the sound when using.
This app may share these Bluetooth speaker actually has too and load it back whenever.
I conclude that any of the BT equalisers will do the job, but I only tried one of them. Here there are regulators for controlling the bass, loudness, and virtualizer. In this app, you can also save your audio setting and load it back whenever required. The user is able to precisely select a frequency to boost or cut.
