Overall I am not crazy about the RAC as a facility for a major D1 basketball program. From the outside it looks like a 1960’s era airplane hanger. Inside the layout is horrible, concessions suck and the bathrooms are a nightmare. I will never understand why Rutgers cannot figure out bathrooms at RAC and SHI, just terrible.
I however agree the noise is the difference. For whatever reason the acoustics in the RAC make it really loud. Other arenas, even double the size filled to capacity don’t seem nearly as loud. In those larger arenas the sound is sucked up into the rafters. In the RAC, the sound bounces around off the walls and converges at floor level, seems loud AF.
Some of those aren't that difficult to fix, though. The exterior can get a facelift - but I'm sure they'd want to couple that with an expanded lobby area of some kind, which could also improve the bathroom and concession issues. If you expand out the front doors, you can also add more seating on that end without sacrificing lobby space - which would also help contain the sound even more.
There are definitely things that "can be done" to improve the RAC itself - it's just a matter of nailing down exactly what those things need to be, and then raising the money for them. If we keep selling out the arena, there will be much more appetite for expanding/renovating it.