Studio 68 Enough to Power AKG Q701 Headphones?

I use AKG Q701 headphones which are known to need a good amp for them to drive/perform at their best. The headphones have an input impedance of 62 ohms, 105dB sensitivity, and a max power rating of 200mW. I use a Presonus Studio 68 which has headphone outputs that have an impedance range up to 300 ohms and power rating of 150 mW@56 ohms. That seems fine to drive the Q701’s without buying a headphone amp and they sound fine to me, but I was curious if anyone who knows about such things can provide an actual reasoned opinion on the matter.

Thanks in advance.