In use as a subwoofer the PZ09A does make a world of difference to the sound from a notebook, although it works best with machines that have a dedicated subwoofer output, which means that you really need a notebook capable of 5.1-channel audio. Having tested the PZ09A on several notebooks in our labs and even a desktop PC, it was quite clear that when it was connected to a laptop that sends the whole stereo signal, you end up with distorted sound reproduction if you crank the volume up.
There are of course other factors that play a part, such as the type of audio that is being played, while the sound chip in your notebook will also have some impact on the audio output quality. But where the PZ09A will really have an impact is if you use your laptop to watch movies, since this is where a lack of bass is most obvious.
With an effective output of 2W the PZ09A won’t make the floor shake, but considering that it only costs £20.98 inc VAT you wouldn’t expect it to. Overall the PZ09A is yet another gadget, but one that actually serves a purpose and a useful one at that. One word of warning though, the speaker is not magnetically shielded, so be careful what you put next to it.
The Saitek PZ09A is a one of a kind product, and one that serves a specific purpose. If you crave fuller sound from your notebook when listening to music or watching movies, this is one alien space craft that deserves investigation.