Application of compression and some studio EQ to punch up certain freqs should help dial things in to be more "punchy"...
Right. And can you or anyone else give advice about the best compressor and EQ settings for my purpose? Playing around with compressors I had the feeling that I'm rather losing than gaining a more defined low end.
Now I just added +6db on Mid 1 Gain at 125Hz and a compressor with 5.0 Intensity and 3.5 Attack, 0 Squash.
Here's another sample, but please note that the volume sample is louder than my first one: