VERY flat response from this speaker and it also has a built in 5 band EQ to adjust to the listening environment too. Pretty fking loud as well. Dedicated pair of mid, tweets with actual crossover network and dedicated 6inch sub as well. I've heard jbl, bose, beats harmon kardon and they all sounded like pure garbage to me either a U shape curve or no bass and peaky upper mid. Not to mention its fking loud and doesnt distort at high volumes or have speaker breakup. You can also get two of them to link for stereo mode or dual mono. Aiwa Knocked the ball out of the park with this BT speaker. Only setback is, soundstage *****(its there though but extremely narrow) but i'm being overly nitpicky since 99% of bluetooth speakers dont have soundstage.

Had to use a non copyright audio track.
https://www.youtube.com/watch?v=FMnV_kSBi5Q
https://www.youtube.com/watch?v=FMnV_kSBi5Q


Picture of someone else taking the grills off