the hollowed effect gives you a slight bigger bite to the note (just like those hollow bodied jazz guitars ) you noticed jazz guitarists dont play jazz with les pauls?,or any other solid bodys? but only with big body hollowed ones.,,,,,,(theres a bassier tone to the note even at the 'highest' register) well the chambered bodys of alembics offer the same effect ,a rounder richer tone and a 'fuller pluck of the string'wheras,you can tell the differencs between the two, and thats why alembic offers chambered bodys 'standard' in the series models, and thats why the series basses sound so much better and sweeter than the rest of their line.