Something's a bit loose inside, plus there's some rattling going on during loud bass, so I decided to open it up to see if I could secure the bad noises.
Unfortunately not much in the continuous bass department. It's only rated down to 130hz, and with my heavy use of EQ on my phone to knock down the mid around 400-1k and significantly boost around 150hz, partially due to how Id EQ the tracks anyway, not much volume is left to overcome ambient noise.
The back pries off, little glue, mostly friction fit pins.
Passive radiator being on the back makes it not as effective outside unless a little port was added to send the bass out front. It seemed tuned around 95hz and the total resonance below that was around 75hz, which matches what I heard with the bass dropping off below 120, and rapidly below 75.
The buttons might need to come out to clear components on the board, but I figured out everything pushed out the back by design, and I'm not there yet. I used a tiny screwdriver to reach in and push up the 4 clip tabs.
The hard part is they hid screws behind the very firmly glued in steel grille. Luckily only the corners were glued with a somewhat stretchy glue, but it was quite difficult to get off without much damage. Looks like paper cones with plastic caps.
Done for the day
