Finally got a video of my baffle box. The back was originally a double wall for exhaust air flow and has cutouts on the bottoms of the side panels. Has some cheap o carpet on the side and end panels to help with the noise reduction. Didn’t work as well as hoped for and the ventilation sucked. Put a 6in muffin fan in there and it keeps everything nice and cool even sitting in the sun running all day. All in all @ 25 feet I get 4 1/2 dB noise reduction, that folds down for easy transport. I have yet to not be the quietest one in the park with my predator 3500
Used a dryer vent for my exhaust dump.
Carpet remnants for my sound insulation,
Aluminum angle for my side rails on the ends, and 1/4 pins to hold it together on the ends as well.
The muffin fan is(amazon) rated @211 cfm and is a 120v that runs off the generator. Has the lowest draw vs 12v for amps so more to end to the rig.