Noise Level under various condition (GL350 BT vs GL450)
The way that works is this..- if you drive the GL350 1st - and then the GL450 - the GL450 will sound a "little quieter"...end result GL350 will be very impressive..
..if your drive the GL450 1st - then drive the GL350 next - you will hear the "slight" increase in running noise at idle and low/street speed..and you will be impressed by the GL450..
Psychoacoustics thing...








