The first thing you need to do is get one that matches your audio output. In "theory", you get higher impedance as a result of thinner/lighter wires in your vo

The first thing you need to do is get one that matches your audio output. In "theory", you get higher impedance as a result of thinner/lighter wires in your voice coil, which "could" result in better sound reproduction. In practice, I don't think that's really relevant for most usecases (in any case, you would have to measure the performance of the specific hardware anyways). So the most important thing is just get something that your output driver can handle.