What is the power output when hooked up to a 16 ohm speaker? I see the general power output is rated in the manual as 4.6 watts into 8 ohms. But then I saw another place that said it was 2x the headphone rating, which at ohms would be 2.4W (1.2x2)

Im loving this Taboo 3 Im borrowing, but it does have to go back to its owner soon, and knowing how much power I am putting out would help determine if I want one super zen or two.  (I do realize its not all quite equal as the gain is a factor too, but at least its a baseline of comparison)

Thanks!