Harmonix has already boasted that its Rock Band 2 instruments are quieter than their original counterparts, but the folks at Joystiq understandably weren't quite ready to just take 'em at their word, so they put the instruments through their own "semi-scientific" tests to see which rock the quietest. After some careful experimentation, they found that the new instruments were indeed quieter all around, with the guitar receiving the biggest improvement under normal playing conditions. Somewhat curiously, the drums were actually a bit louder when struck as hard as possible, but the added springiness makes it easier to play them quietly. Be sure to hit up the link below for the complete breakdown.