From the Wilson website page for the Alexia 2:
We can see that Wilson does not think this speaker hard to drive with a 20 watt minimum. Because the AGD has such a low output impedance I think it should be able to drive this speaker quite well, depending on the power of the amplifier and the size of the room. If you have a larger room all you would need is more power.
So I guess I’m refuting the idea that a class D can’t handle this speaker (any more or less than any other class AB amp of the same power might). I really don’t see what the problem is.
I spoke to Jerron that works at Wilson (for the last 20 years) and he is in complete agreement. He says the older Alexia was a bit harder to drive but the class D amps handled it no worries at all.
So I'm going with a 'furphy' on this one.
Measurements Sensitivity 89 dB @ 1 watt @ 1 meter @ 1 kHz Nominal Impedance 4 ohms / minimum 2.54 ohms @ 85 Hz Minimum Amplifier Power 20 watts per channel Frequency Response 19 Hz – 32 kHz +/- 3 dB Room Average Response [RAR]
We can see that Wilson does not think this speaker hard to drive with a 20 watt minimum. Because the AGD has such a low output impedance I think it should be able to drive this speaker quite well, depending on the power of the amplifier and the size of the room. If you have a larger room all you would need is more power.
So I guess I’m refuting the idea that a class D can’t handle this speaker (any more or less than any other class AB amp of the same power might). I really don’t see what the problem is.
I spoke to Jerron that works at Wilson (for the last 20 years) and he is in complete agreement. He says the older Alexia was a bit harder to drive but the class D amps handled it no worries at all.
So I'm going with a 'furphy' on this one.