dac amp

Hi I would like to ask you a question: I recently bought the hifiman he400se and I want to know if the PreAmp Earman TR-AMP can amplify the he400se to its maximum volume? TR-AMP SPECIFICATIONS: HeadAmp THD+N (2.7V, 32R) <0.005% SNR >114dB Dinamic range >107dB Power: 16 Ω...

So I was wondering what I should expect as far as the headphones output differences. Are they big? Where would it be audible? Is the E10K actually more powerful? Would it distort quicker? If anyone could explain that and maybe refer me to some stats so I learn - that would be great. Trying to...