The NX-E110 satellites are full-range satellites that can go from 100Hz all the way up to 25kHz without breaking a sweat. The NX-C110 centre can go even lower to 80Hz. Now that really seems like a bold statement as any driver size that's anywhere close to 2-inch like these drivers would need an incredibly well designed cabinet to come anywhere close to 100Hz and these cabinets don't look anything above standard. However, we shouldn't judge a book by its cover so we'll simply have to test the ability of these speakers.

The subwoofer has a different story to tell, especially with the help of Yamaha's Active Servo Technology that's been used in their higher-end speaker ranges. This technology works by using a port or opening as an 'air woofer' to produce the bass frequencies rather than just the driver itself.

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This way, signals of low amplitude within the cabinet can be outputted from the opening as waves of great amplitude if the size of the opening and the volume of the cabinet are at a certain ratio, as specified through derivations of the Helmholtz resonance theory. This is still a general look at what this SW-P130 subwoofer does, more specifically there are lot more challenges that have need to be overcome before the Active Servo bit can take its effect like negative impedance. Right now, let's get to some testing to see what all this riff-raff is about.