I have the 700 and the 1000, the 1000 is very quiet, shifts gears quicker, so less high rev noise too. My 700 seemed to get “louder” after I put the windshield and roof on. The sound reverberates more for passengers inside (it is quieter for people outsid as you drive by).
I’m not happy with the noise of the 700, but at 9,300 ft elevation, I can’t afford to lose HP with an exhaust silencer.