To be honest the best way I've found to get that sort of tone is to play fingerstyle as that Dutch guy is, use a clean amp channel with all effects turned off and using flatwound strings. Roundwounds just have too bright a sound. Another advantage is that flatwound strings can last for years in the right hands. Though with me being a putz who doesn't know my own strength sometimes I only get a couple of months out of them...and they are absolutely murder on the fingers.After a few months of use, I've developed a real fondness for the natural, uncompressed, power of a real, unprocessed, electric bass guitar, as I've seen, heard, and felt on many great You Tube video's. This Dutchman's channel, infusion26, is unbelievable!!! His playing, instrument, and audio capture are, hands down, the best I've found on You Tube!!!
I'll be getting one of these in the near future, they have a lovely tone!