I had a 5 string Artcore with the factory 'distressing'. You could hardly hear it unplugged solo and also alongside an acoustic guitar or percussion. Only with a small practice combo as suggested by Jean-Luc Picguard is there any volume to compete. Bass frequencies are too low to be heard unamplified with a small bodied Bass, even with an element of hollowness: I think the Artcore,from memory had a solid core?
Tone wise amplified it was OK, but as said above a bit muddy, and the low B was not the best, this you might however expect on a short scale and I was on Flats too!