I use Strum Machine with several different audio devices; computer speakers, portable Bluetooth speaker, P.A. speaker and an acoustic guitar amp with built in Bluetooth.
On all mentioned devices I’m finding the bass in Strum Machine a bit heavy. I can adjust this on my computer speakers and portable Bluetooth speaker with tone and equalizer controls. However, neither the P.A. speaker nor the guitar amp’s Bluetooth connection has an equalizer or tone control. Unfortunately I use the guitar amp most often.
My suggestion would be to add some sort of equalizer to the Strum Machine app. A small 10-band would be great but even a three band Treble, Mid, Bass version would be helpful.
Thanks for listening. Great app!! Keep up the good work!