seems like the KingRex should be a good match in power - at 360mW at 60ohm.

the TrendsAudio is 3.0 Watts per channel on 33 Ohm Headphone

1mW = 1thousandth of a watt - so 3.0 Watts would be 3,000mW. Looking at the KingRex stats - it appears that as Ohms go up mW go down. Help me if my math is wrong, or logic - but if the K701 are 64Ohm than about double the 33 of the TA so about 1.5Watts per channel. Which would mean 1,500mW. Or do I have one extra zero? and it is 150mW. Which is a bit under what is recommended. So a good test would be to see if it has issues with large complex musical pieces.