The description on the MF web page for the combo is............
"Little Mark III Bass Amp Head
The Little Mark III amp head's DI input features a pre/post EQ switch and output level control, so you can optimize the signal you send to your mixer or recording unit. All this capability comes in the same compact size and weight as its Markbass predecessor. Weighing just over 6 pounds, it puts out 300W at 8 ohms and 500W at 4 ohms. The Markbass amp's 4-band EQ offers precise tonal control while a Variable Pre-shape Filter, Vintage Loudspeaker Emulator), balanced input for acoustic basses, balanced DI with level control, and pre/post switch make the Markbass Little Mark III a totally pro amp head."
The owners manual only says ...
Balanced Input, Impedance 1Mohm, max voltage 25vpp.
It will be interesting to see what this lightweight package will do. The entire amp weighs six pounds less than my 20+ year old Peavey MarkVIII head alone! The Peavey MarkVIII head weighs in at 50lbs vs the Little Mark at 6.5lbs. My 215 Peavey BW cabinet weighs in at 116lbs vs the New York 115 at 37.5lbs. I can add a second New York 115 cab and still be less than half the weight of the Peavey & more power. Also in smaller, manageable pieces.
I don't expect it to handle the "67 EB-2 as well, it might not handle it at all, but I've rarely used since I started running the Hobbit. Should know tomorrow, weather permitting. Another winter storm on it's way.