I wouldn’t be surprised if your ML’s dipped down to 2 ohms at spots- I would probably go with the 2 ohm, but I’d also listen at 4 ohm and see which I preferred.
Recall, the 4 ohm rating is ’nominal’ and really doesn’t tell you anything of the impedance spread over the audio band.
Recall, the 4 ohm rating is ’nominal’ and really doesn’t tell you anything of the impedance spread over the audio band.