I have the Bose SoundLink mini and the Denon Envaya tested side by side, and I must say the Denon does his job (of course purely subjective seen) many times better than the Bose! It actually comes out a sound to hear the one and see passes, while still very dominated the competitors of the Bass. Bass is great, but it can also cover everything else, and that this path is not Denon! He plays just warmer, more empathetic and clean.
Conclusion for me: A BT-speaker who has a clear sound with great mids and highs, while the bass is not too short. The space of the stage depicted is also more than amazing !! About the familiar Denon produces outstanding processing you need not continue.