You can control everything and anything you need on your phone sound.. The app will make your phone sound into 50 time higher..
1 Test both speakers working as expected
2 Control the Speaker Sound
3 Control the Bluetooth Sound
4 Control the Headset Sound
★★★ Sound Tweaks Enable and Disable
★★★ Playback Smooth Control
★★★ Select Effect level
★★★ Max Gain 10x
★★★ Max Output -10.5db
★★★ Custom Equalizer- Do as your requirement..
★★★ Convolve
★★★ Field Surround
★★★ Differential Surround
★★★ Headphone Surround
★★★ Resonance
★★★ Dynamic System
★★★ Bass Control
★★★ Auditory System Protection
★★★ Master Limiter
★★★ Save profile
★★★ Load Profile..
Root permission required..
You can maximize your sound based on your wish..