This is a professional touring bass rig. The David Eden Pre-amp has studio quality sound, although the DI has some hiss (which is why this is listed as very good and not excellent) The parametric EQ gives a fully customizable tone. The QSC - PLX1602 power amplifier has more than enough power (1600 watts) for even the biggest stage. The combination allows for running speakers in stereo mode, bridge mono mode, or parallel mode which allows it to be run in parallel with other amplifiers: 500w/ channel at 4 Ohms. David Eden 15' Speaker with tweeter also available. The amp and pre amp are mounted in an SBK four slot, road-worthy hard case. It is easy to unpack and set up. (two 1/4" bridge cables included as well as a single amp to 1/4 speaker jumper). 4 function midi foot switch is included. This amp has been used infrequently for local gigs. It mostly sits in my studio where it is played regularly. It has been babied for 19 years, and is waaaaay more than I need for my current usage.