sound enhancements?

[as.hs]

I love my Moto x4 and I use it constantly everyday. I just switched from my Moto z play that broke (sad face) and overall, I'm liking some features of this phone better. One thing I have noticed is the sound that comes through the phones speaker or when hooked up to Bluetooth speakers doesn't sound very good. On my Moto z play and my older Moto g4, the sound quality was much much better and when hooked up to Bluetooth speakers, they really packed a punch. I will hook this phone up to the same speaker and play the same song but it doesn't sound as loud nor does it hold much bass. What would be the best sound enhancement app I could get without screwing the phone up?