Hi Jahn; enjoyed the vid, thanks for the link. As in the vid, the Tbass needs either pedals/effects as in the vid or nearly full volume to get them to dirty up. They typically produce a loud, clean signal and have an exceptionally beefy power supply to support bass play. They pre-date the now-common line out/in or effects loops but do have separate vol / tone controls for each channel, a set of filters, and a master volume control.